Opa1612 vs opa1622. OPA165x Ultra-Low-Noise, Low-Distortion, FET-Input, Burr-Brown™ Audio Operational Amplifiers 1 Features • Ultra-low noise: – Voltage noise: 2. Opa1656 has good phase response at high frequency. The OPA1662 and OPA1664 series of op amps offer rail-to-rail output swing to within 600 mV with 2-kΩ load, which increases headroom and maximizes dynamic range. Reactions: Euphonic_employee, Xulonn, Speedskater and 5 others. Ranking Keywords. opa1612 dip8. The V6 Vivid has a faster attack than the classic, but still not quite as fast as the SS360x which allows the SS360x to wring out just slightly more detail than the Vivids. It sounds swell but I have a set of the higher performance LMA49720NA DIP-8 opamps here on my desk and I'm wondering if Below are THD+N vs. VCM = VOUT = midsupply, unless otherwise noted. The device features a low noise density of 2. On the EVM, each channel of the OPA1622 is configured as a difference amplifier that receives a differential input signal from an audio analyzer or audio DAC and outputs a single-ended signal. In one of them I balanced resistance next to inverting input, VIN(DIFF) Differential input voltage ±VS V IO Output short-circuit(3) Continuous TA Operating temperature –55 125 °C TJ Junction temperature –65 150 °C Tstg Storage temperature –65 150 °C (1) JEDEC document JEP155 states that 500-V HBM allows safe manufacturing with a standard ESD control process. As mentioned previously the OPA2134 in BIFET is a decent performer. Also the OPA1612 does have the highest quiescent over the other opamps we're talking about it will be the hottest. 虽然opa627肯定可以用于此应用程序，但您可能还需要考虑使用opa1612，opa1622或opa1688作为耳机驱动程序。 即使在32欧姆负载中，这三种产品都具有出色的thd+n规格，并且在600欧姆时与opa627的thd+n相匹配或超过。 opa1622可能最适合此应用程序，但仅在vson封装中可用，而 输出部分则选用了两片时下美国德州仪器出产的最受发烧友好评的发烧运放opa1612，opa1612是ti推出的一款性能相当优异、双通道、双极输入音频运算放大器。 Btw opa1622 is not really very happy with the parallel configuration, offset can be higher than ideal and can get hot if the output resistor is low. Pin can be left floating or connected to any voltage between (V–) OPA1622 ideal for use in portable-audio applications. The OPA1622 offers extremely high ac PSRR and CMRR specifications that eliminate noise Parts discussed in this thread: OPA167x, OPAx134, OPA165x, OPA1622, OPA160x, OPA1692, OPA1611, OPA1632, With so many different audio op amps available from TI, it can be difficult to determine which one is right for you. com SBOS450C –JULY 2009–REVISED AUGUST 2014 5 Pin Configuration and Functions D Package OPA1611, SOIC-8 D Package (Top View) OPA1612, SOIC-8 (Top View) DRG Package OPA1612, SON-8 (Top View) (1) NC denotes no internal connection. Closed-Loop Gain vs Frequency Wrong? just reviewed the datasheet, Figure 13. Newk Yuler Active Member. 2dB at 1kHz, while also driving a Part Number: OPA1622. Pricing and Availability on millions of electronic components from Digi-Key Electronics. According to the TI datasheets OPA1612 has less noise than OPA1656. The The OPA1622 consumes low quiescent current of 2. 1nV/√ Hz) 和超低失真 (0. 1% 10 PPM resistors in the The OPA1642 is significantly inferior to the OPA1612 in many regards (GPW product, output drive, distortion vs output load, input voltage noise for example). The next section will focus on choosing the right audio amplifiers based on the application and end equipment. Here is my USB DAC and Headphone amplifier I've been working on it utilizes the XHRA-2HPA XMOS USB to I2S converter, a PCM1794A DAC and a OPA1622 output amplifier. A question for opamp gurus. OPA1622IDRCR – Audio Amplifier 2 Circuit 10-VSON (3x3) from Texas Instruments. Anyway, OPA2134 is pleasure sounding Op-Amp. These op amps supply low offset voltage, low drift over temperature, low bias current, and low noise with only 60-nV RMS 0. 4 Kbytes. Some people have more recently started using OPA1656, which are very good, although they are a little less authoritative in the bass. If a transient causes the op amp inputs to be pulled apart, the differential input voltage forward-biases those diodes causing a large input bias current. OPA1612 is one the most low-noise opamps ever built, so totally recommended for unity-gain stages (LPF or output stage of a DAC, but also I/V stage too). NE5532 is a very good amplifier especially for the price ($0. capacitive load for G = +1 and -1 configurations (reposted here for convenience). I'm not a big fan of overshoot vs cap load graphs. The OPA1622 op amp is unity-gain stable and provides excellent dynamic behavior 比較したのは高音質のもの限定で厳選した電圧帰還icのlme49990、opa627、muses8920、opa1612（opa211）等ですが、これらよりも圧倒的に良いです。音はths4631の印象と近いのですがths4631側の安定性の問題（発振していると音質が劣化する）で同じ条件で直接比較でき In SMT the OPA1612, rated at 40V absolute maximum, is a very good part. The OPA1652 and OPA1654 op amps offer rail-to-rail output swing to within 800 mV with a 2-kΩ load, which increases headroom and maximizes dynamic range. 6 mA of supply current per channel. OPA1602はOPA1612より1mA少ない OPA1602はUnity Gainでの安定度が高い。 OPA1612はOPA1602よりも安定度が悪いのでゲイン1以上で使ったほうがよさそう。 容量性負荷の場合，OPA1612はCfが必要。OPA1602にOPA1612と同じCfを取り付けると容量負荷でもオーバーシュートが出ない。 OPA1612(bipolar input) OPA1622(bipolar input) OPA1688(cmos input) Best regards, Kato. No thermal problems on 32Ohms earphones. The OPA1622 performance was comparable to the LM4562 with a 10k source impedance, G=+1 and 5Vrms input signal. My board allows for both. Description: SoundPlus High-Performance, Bipolar-Input Audio Operational Amplifiers. It turned out that these OPA1612 are cheap TL082 FET Opamps as you can see on the Order today, ships today. opa1612 与 . 75 mA of the OPA1688, but it's 5 times more expensive and the package is 10VSON which is nearly impossible for DIY work. The plan is to build the amplifier stage directly as . Enjoy Free Shipping Worldwide! Limited Time Sale Easy Return. Specifications are Standard opamp for that has pretty much become OPA1612. Find parameters, ordering and quality information OK, start from scratch - on the diyaudio forum there's a highly regarded ES9038Q2M DAC + output stage, which uses quite modern opamps - OPA1622 for first stage, and OPA1612 for second stage. Members. (My ears are very sensitive to pressure and “blow” similar to crappy speakers, lol). Transients are stronger, both rimshots of snare drum by OP-amp by song Jump table ↓* VOCAL CLASSIC POPSMUSES03 0:42~ 1:42~ 2:43~ 👇opa1622の出力電流・電圧特性はこんな感じで、140ma近辺まで16vを保っているのがわかると思います。 36mAとかは余裕そうですね。 ということで、DAC直下のオペアンプはOPA1622に決めて、その fostex hp-a3 などかなり多くの種類のヘッドホンアンプに使われております。 値段もかなりお手頃です。 音質は 寒色系 でくっきりとした音質です。 低域もかなり引き締まっている淡白な印象 です。 シンプルでまとまりも良く解像度も高めでですが、人によっては面白みにかける音に感じて The TI OPA1612 dual operational amplifier benefits from excellent technical characteristics, allowing very good electrical and audio performance. The OPA1622 delivers high output power of up to 150 mW and extremely low distortion of –135 dB at 10 mW. I don't care about listening tests or something else, just The OPA1611 and OPA1612 op amps are unity-gain stable and provide excellent dynamic behavior over a wide range of load conditions. 3 nV/√ Hz noise density with an ultralow distortion of 0. 5nV/√ Hz noise density with an ultralow distortion of 0. Dec 27, 2019 #7 restorer-john said: It's the The OPA1622 is the newest addition to the company's Burr-Brown™ Audio line and is the next generation of the widely adopted OPA1612. Other Parts Discussed in Thread: OPA1612, OPA1642, RC4136. opa1612 amplifier. Without scoping the outputs or measuring the DAC there's no telling if OPA1622 ideal for use in portable-audio applications. . 2 dB at 1 kHz, while driving a 32 Ω load at 100 mW output power. 25 V to ±18 V, on only 3. SMSL SU-10 vs M500 MKIII vs DO300 21 vs 9 vs 11 dual op-amps OPA1612 (accoring to the spec from smsl-audio) What is the Op-amps doing in that? M500 SINAD Reviews. These three Op-Amps It's best use as an alternative to opa1612 when noise is not a big concern. Couple items I'm not really 100% sure on and would 先日ハンダ付けをして作成をしたオペアンプ「opa1622」を nfjの「dac-x6j」に搭載してみました。 まずは六角レンチで「dac-x6j」の全面にあるボルトを4ヶ所外し 基板をとりだします。 丁度ボリュームの近くにオペアンプが搭載されているのがわかり This is a study of whether changing op-amps in a DAC makes a measurable difference. opa129. Goggle bill d mod carver c-1. I would like to see these parts offered in a DIP package to replace the OPA2134PA. My previous set up was exactly the same except a TPA6120 filled the role of the OPA1622. The first time I did test with opa1642 opa2156 (precision opamp version of opa1656) opa1612. 1-nV/√Hz noise density with an ultralow distortion of 0. Joined Mar 5, 2019 Messages 155 Likes 252. tnt-audio. THD+N Ratio vs Frequency. The OPA1622 is a slow device compared to the OPA1612/OPA1656. 2-nV/√ Hz noise density and distortion of –127 dB at 1 kHz. Pin can be left floating or connected to any voltage between (V–) Part Number: OPA2210 Other Parts Discussed in Thread: LM4562, , INA1620, OPA1622, OPA1656, OPA828, OPA1642, OPA1678, OPA1612, BUF634A Pardon if any of the following has been covered. Zishan creating cheap audio as possible using high end chips to mach 10 times more expensive stuff for fun. 59 Kbytes. However they measure and perform worse than SOTA audio ICs like lme49720, opa1612, opa1656 etc. --lme49722 lme4562 lm4562 opamp In actuality, if you compare the OPA1622 datasheet Figures 38 and 39 Output Voltage vs Output Current graph,to the OPA1688 Figure 9. 2nd December 2017 #21. 000148% at 1 kHz While Driving a 32-ΩLoad at 100 mW of Output Power • Magnitude Variation of Only 0. The OPA1642 has the JFET input stage- thus reducing the input current noise- reduced common mode input distortion and sensitivity to source impedances, and lower standing Description: OPA1622 SoundPlus??High-Fidelity, Bipolar-Input, Audio Operational Amplifier. Products Precision op amps (Vos<1mV) INA1620 — High-fidelity audio operational amplifier with integrated thin-film resistors and EMI filtering OPA130 — Single, 1-MHz, 20-pA bias current, 530-µA power, FET operational amplifier OPA131 — Single, 4-MHz, 50-pA bias current, 750-µA power, FET operational amplifier OPA140 — Single-channel, 11-MHz, Part Number: OPA1622 Other Parts Discussed in Thread: LM4562, OPA211, OPA210, THS4031, OPA1612, , OPA828, OPA2210, OPA1637, LME49860, THP210, TINA-TI, OPA1602 Would this work IRL? Anything to look out for? Suggestions for improvement? • The ideal amp for the duty the OPA2211 is performing here would run at a minimum of と書いた前回のopa1622言葉をそのまま補正したような、重低音が出ます。 音圧というんでしょうか？ 音の迫力が出て、クラシックでは特に自然な音が出るという、「孤高のエンペラー」と書いてた方がいましたが、納得出来る音です。 Manufacturer: Part # Datasheet: Description: Texas Instruments: OPA1622: 2Mb / 36P [Old version datasheet] High-Fidelity, Bipolar-Input, Audio Operational Amplifier OPA1612-Q1: 1Mb / 31P [Old version datasheet] SoundPlus High-Performance, Bipolar-Input Audio Operational Amplifier OPA1612-Q1: 1Mb / 31P [Old version datasheet] OPA1612-Q1 The OPA1622 offers extremely high AC PSRR and CMRR specifications that eliminate noise from power supplies which makes the OPA1622 ideal for use in portable audio applications. Sometime I use OPA1612, OPA1642 and OPA1622. Find parameters, ordering and quality information OPA1622 是一款双通道、双极输入、 SoundPlus音频运算放大器。该器件在 1kHz 频率下拥有 2. frequency plots. The OPA1622 offers extremely high AC PSRR and CMRR specifications that eliminate noise from power supplies which makes the OPA1622 ideal for use in portable audio applications. Hi team, I downloaded the OPA1622 model on TI's website and used TINA TI to simulate the phase margin at different capacitive loads and found the simulation results to Part #: OPA1612. You should be able to find single-to-dual DIP8 adapters for mounting 2xAD797 on a OPA1611, OPA1612 www. TI’s OPA1688 is a 36V, 10MHz, Low Distortion High Drive Rail-to-Rail Output Audio Operational Amplifiers. It is OPA1602 OPA1604 www. Hi Team, My customer wants to replace OPA1656 with OPA2134. The OPA1611 and OPA1612 offer rail-to-rail output swing to within 600 mV with a 2-kΩ load, which increases headroom and maximizes dynamic range. My plan is to use a PCM2707C for USB to I2S converstion, a PCM1794A will be used as the DAC and the amplifier stage will contain a pair of OPA1612 and a OPA1622. Also pricing for 1000+ isn't really that expensive for opa1656, opa1602, opa1612. The OPA1612 is used by Topping/SMSL and I believe Gustard is using it too and also in the OPA1612 is fuller sounding - especially lower midrange but also more dynamic. They are ~6. The OPA1652 (dual) and OPA1654 (quad) FET-input operational amplifiers achieve a low 4. LME49720 sound is boringand too light. ??TI OPA1622 ??? 145ma??? ??? ????? When i get back to Australia, I'll try opa2156, opa828, njm4580 along with opa827 opa1612 in o2 circuit with 32 and 16 ohm load. I'm not saying you wont hear a difference if you swap the opamp, but whether that difference is better is up to you but objectively the performance is likely to decrease if you replace the opamp, even with an apparently better performing one, if the circuit was The OPA1602 and OPA1604 bipolar-input operational amplifiers achieve very low 2. It appears that the OPA1611/2 have a lower noise The OPA1622, dual, bipolar-input, SoundPlus™ audio operational amplifier achieves a very low, 2. 魅族mx4pro运放芯片用的是1612，而xplay 3s用2604，不知道魅族能不能比vivo更屌呢？ 貌似老外们觉得2604比较好有助攻的么 OPA1612 与 OPA2604 对比？ The OPA1641 would be slightly better. I also refurbish large format recording consoles. So i expected to get fakes but i wanted to know it for shure. He talked to me about OPA1611's versus OPA134's as well as the OPA1612's versus OPA2134's. 6-mA per channel and delivers high linear output current of 80 mARMS in a 3-mm × 3-mm DFN package. I tried to put OPA1622 to the output buffer of FiiO X3II player in place of LMH6643. Donations. The OPA1622 is the newest addition to the company’s Burr-Brown Audio Unique pinout simplifies design and improves distortion performance: The OPA1622's ground-referenced enable pin is directly controllable from the low-power The OPA1612 is one of the best I’ve ever encountered, the LME 49720 are hard to beat at any price. My circuit is a little short on supply rails, so good output swing is important. macc. TI__Genius 12325 points Hello, All the amplifiers you list are voltage-feedback amplifiers. com/product/OPA1622. The compact OPA1622’s low power consumption and low distortion can OPA1611, OPA1612 www. Both fet based opamps sounds a little bit more solid in the bass (not I'll look at it if you know of one amp using OPA1612 sounding audibly better than another amp using cheaper op amp in objective listening comparison. i tryed lme49722 opa2134 and opa1612 ,--. The OPA1622 op amp is unity-gain stable and provides excellent dynamic behavior The OPA1622 is an excellent part, we use it in our headphone amp, but still has slightly higher noise and distortion over the opa1612. 000015% at 1 kHz. opa1659. The OPA1622 offers extremely-high ac PSRR and CMRR specifications that eliminate noise from power supplies, making the OPA1622 The OPA1662 (dual) and OPA1664 (quad) series of bipolar-input operational amplifiers achieve a low 3. Professional audio 米Texas Instruments（TI）社は、「業界最高のオーディオ性能」（同社）を達成したデュアル構成のオペアンプIC「OPA1622」を発売した。同社の「Burr-Brownオーディオ」製品群に含まれるもので、現在製品化している「OPA1612」の次世代品という位置付けである。最大出力電力が150mWと大きく、出力が10mW The OPA169x operational amplifiers achieve a new level of performance for low-power amplifiers with a low 4. opa1688. Is the 2134 the right choice. ti. S. 1-Hz to 10-Hz noise. After deciding on which amp I'll test the same thing in positive and negative gain configuration. OPA1612-Q1: 1Mb / 31P [Old version datasheet] SoundPlus High-Performance, Bipolar-Input Audio Operational Amplifier Burr-Brown (TI) OPA134_071: 403Kb / 14P: High Performance AUDIO OPERATIONAL AMPLIFIERS OPA134: 432Kb / 14P: High Performance AUDIO OPERATIONAL AMPLIFIERS More results. I found that OPA1612 was in the ultimate soundplus collection that's why i have change for it. New posts Latest activity. It can be a bit expensive for some people, but it will definitively sastisfy those seeking A comprehensive comparison between OPA1612 and OPA2156 (and other opamps) could be read here: https://quantasylum. The OPAx828 I had the chance to gather up a selection of opamps from my parts bin, including BB OPA2604, OPA637, AD823, LME49860, JR4556, Muses8820 and 8920, and compare them against each other along with a Burson V6 Classic (thanks to them for sending me an evaluation). 9 nV/√Hz at 10 kHz OPA1622 ideal for use in portable-audio applications. The sound became excellent - clarity and powerfull. This is shown in Figure 24 in the datasheet, which plots phase margin vs. Neurochrome hp-1 is essentially the same but using opa1612 and paralleled the whole composite amplifier section. Electronic Components Datasheet Search OPA1612-Q1: 1Mb / 31P [Old version datasheet] SoundPlus High-Performance, Bipolar-Input Audio Operational Amplifier OPA1612-Q1: Buy opa1622 op amp High Performance Low THD+N and Bipolar Input for dac headphone amplifier at Aliexpress for . opa1611a. 2 dB at 1 kHz, while driving a 32-Ω load at 100-mW output power. With a high performance noise rejection and feed noise filtration rate, this PDO has outstanding dynamics and a total harmonic distortion of -119dB theoretical for a current of 145mA. 2 Performance Specification Summary A summary of the OPA1622EVM performance specifications is provided in Table 1. amplitude and THD+N vs. The OPA1622 op amp is unity-gain stable and provides excellent dynamic behavior 随着智能手机和平板电脑的高速发展，便携式高保真（Hi-Fi）音频市场的需求与之增长。无论是消费者还是做Hi-Fi的商家，都希望产品拥有更高的输出功率，并且保持低失真率的运放，从而驱动各种耳机。目前市场上大部分产品采用的TI公司的OPA1612，虽然失真率很低，但是驱动能力不够强。 OPA1692 Low-Power, Low-Noise and Low-Distortion SoundPlus Audio Lead finish/ The OPA828 and OPA2828 ( OPAx828) JFET input operational amplifiers are the next generation OPA627 and OPA827, combining high speed with high dc precision and ac performance. I use TPS7A4700 and TPS7A33 low noise DC to DC converters with 4 µV/16 µV noise. Pin can be left floating or connected to any voltage between (V–) The OPA1622, dual, bipolar-input, SoundPlus™ audio operational amplifier achieves a very low, 2. A separate enable circuit maintains control of the input and output stage when the amplifier is So in this discussion, I will focus on the modern Vs. New posts Search forums. OPA1622: OPA1622 vs OPA1688 SNR/DNR/Cross talk at specific condition(32ohm load and 30mW output power) Jung-Ho Seo Expert 5385 points Part Number: OPA1622 Other Parts Discussed in Thread: OPA1688, Dear experts, For headphone application, Customer wants to get number of SNR/DNR/Cross talk at This leads me to believe there could be an issue caused by the back-to-back diodes across the inputs of bipolar (LME49990, OPA1612) and CMOS op amps (OPA1656). Part #: OPA1612. The OPA1622 offers extremely-high ac PSRR and CMRR specifications that eliminate noise from power supplies, making the OPA1622 Manufacturer: Part # Datasheet: Description: Texas Instruments: OPA1612-Q1: 1Mb / 31P [Old version datasheet] SoundPlus High-Performance, Bipolar-Input Audio Operational Amplifier OPA1602: 792Kb / 23P [Old version datasheet] High-Performance, Bipolar-Input AUDIO OPERATIONAL AMPLIFIERS JUNE2011: OPA1602_1111 Ti製のSoundPlus高性能オーディオ・オペアンプ「OPA1622」のGNDをどこに接続するか問題について。 OPA1622とは; OPA1622のGND処理と音質比較. I would use several thousand for one job, IF they were made Other Parts Discussed in Thread: OPA1612, OPA1622. The OPA1622 op amp is unity-gain stable and provides excellent dynamic behavior The OPA1622 seems to have better drive capability at 145 mA vs. Eric Mo Intellectual 775 points Part Number: OPA2134 Other Parts Discussed in Thread: OPA1656, OPA134. This device operates over a very wide supply range of ±2. The OPA1622 op amp is unity-gain stable and provides excellent dynamic behavior The OPA1611 (single) and OPA1612 (dual) bipolar-input operational amplifiers achieve very low 1. Previously i used OPA2134 Op-Amps in my DIY project and CD/DVD modification and after abou year ago i start to use OPA1612. Overall, don't recommend opamp rolling. 5-nV/√ Hz noise density with an ultra-low distortion of 0. It has the most stable input capacitance vs. A few months ago I Part Number: OPA1612 Other Parts Discussed in Thread: OPA2134, , OPA1678. OPA1622: 2Mb / 36P [Old version datasheet] OPA1622 SoundPlus??High-Fidelity, Bipolar-Input, Audio Operational Amplifier OPA1641-Q1: Howdy. 7 EUR at Mouser. We have a question for the OPA1611 amplifeir: and the graph of Figure 7. It ensures a very low noise density of 1. OPA1612 sounds better than any transistor preamp I've ever heard and better then my own 6N6P 2 case -no barrels hold- 36kg monster preamp with a 100% double blind test win rate. Hi Community, TI!!! I would like to upgrade an audio amplifier OPA2134 and the TI site web recommands me to change for a new OPA. OPA1602, OPA1604 PARAMETER CONDITIONS MIN TYP MAX UNIT The unit is likely to sound best with the OPAMP the circuit was designed for. The OPA1642, SMT-only, is also a good dual BIFET. It might require more capacitance in the LPF of the I/V stage to keep it happy Vs the others. common mode voltage that I've measured on any op amp. The only glitch is the conflict I have between the tight current loops SMD passive components allow vs. ad827：延伸非常好，解析力高，高頻華麗，中頻純厚，低頻下潛和力度都不錯，音場向前後左右拓展，有了凹凸感（這一點比其它運放強），速度快，動態好，感覺很大氣，初換上此運放後確實有讓人為之一振的感覺。 Hi John, I have made an headphone amplifier using the opa1622, it work fine but doesn't sound very great. OPA1612到了后，自己先试了试OPA1612+JRC5532，感觉和OPA1642+JRC5532没什么区别，我试了好些碟，也试不出来什么区别；三频几乎没有差别，打分还是一样的，90分水平； OPA1612+OPA1612，这个组合的高频给我非常好的感受，比OPA1642+JRC5532明显更细腻一点，高频的线条感更好 For I/V: OPA1692 is best, compared to - OPA1612, OPA2192, OPA2209, OPA1652, NE5532, LME9720, OPA1622, OPA1602, OPA1662 For LP: OPA1692 for now, I have good expectations from OPA2209 but they are out of stock. 000210% at 1 kHz While Driving a 16-ΩLoad at 100 mW of Output Power • THD+N of 0. The OPA1612-Q1 device offers rail-to-rail output swing to within 600 mV with a 2-kΩ load, which increases headroom and maximizes dynamic range. The OPA1622 offers extremely-high ac PSRR and CMRR specifications that eliminate noise from power supplies, making the OPA1622 クラシックや楽器もウリのロックの場合 opa1622 ダンスミュージック等の低音メインの場合 MUSES02 個人的に重低音等の低音を強調するのは好きではなく、高音が気持ちよく伸びるような感じが好きなので、 上記 のような評価になりました。 该款产品是 TI Burr-Brown™ Audio 产品线家族中的新成员，也是已被广泛采用的 OPA1612 的升级产品。全新的 OPA1622 提供高达 150mW 的高输出功率，以及在 10mW 功率下 -135dB 的极低失真，从而为专业音频设备提供最高性能。 另外，力度速度还稍差一点。由于低压性能与指标出色，它是音乐手机的挚爱，推力和音质俱佳。它用来替换声卡、耳放的运放也是非常合适的，能取得立竿见影的效果。另外，其升级版opa1622的性能和音质更强，更值得试试。 指标 9分 高频 8分 中频 8分 低 The OPA1622 is a bit more challenging but I intentionally put a big via in the thermal pad to heat it from below. All I can say is that the OPA1622 sounds sublime and measures like a champ. 8nV/Hz and a low THD+N of –119. I use these amplifiers for pro audio. opa2132 1、既然rin会降低opa1622的低噪声性能，那我不接这个电阻，直接把音频信号输入到opa1622的+ina，然后rf取10k，行不行？ 2、我把opa1622做成g=1的电压跟随器，是想把opa1622当做类似buf634a电流缓冲来使用。请教这种单位增益情况下，opa1622是否还有电 OPA1622 ideal for use in portable-audio applications. 6mA of 电子发烧友网为你提供ti(ti)opa1612相关产品参数、数据手册，更有opa1612的引脚图、接线图、封装手册、中文资料、英文资料，opa1612真值表，opa1612管脚等资料，希望可以帮助到广大的电子工程师们。 opa1612 ina1620 opa1622 opa1652 opa1688 ; OPA1622 ideal for use in portable-audio applications. OPA1622: 2Mb / 36P [Old version datasheet] OPA1622 SoundPlus??High-Fidelity, Bipolar-Input, Audio Operational Amplifier OPA1641-Q1: 将 OPA1622用作差分耳机放大器的输出级不应出现任何问题。 正如 Kai 提到的、运算放大器将看到更高的容性负载、但对于典型耳机、这不应该成为问题。 我在原理图中注意到的一个问题是 OPA1622使能引脚的配置。 Other Parts Discussed in Thread: OPA1642 , OPA1622 大家好。我使用OPA1642+OPA1622搭建了一个简单耳放电路，OPA1642接电流输出型dac作IV转换，OPA1622作差分运放接耳机负载。我发现音频段内所有频率都会有很大的失真，不知道问题出在哪里，还请工程师帮忙看一下 -TI OPA1622 AOP STEREO DIP8 support-This Texas Instrument PDO prefigures the latest generation of the U. In both cases source resistance is 1k. The dual version features completely Tubey, better late than never - I just replaced all NE5532 amps in Benchmark DAC1 with OPA1612 and play it so far for few hours. A simplified internal diagram of each amplifier appears in the overview section at the back of the datasheet. These are SOIC8 size, but you can buy OPA1612 opamps on eBay pre-soldered on a SOIC to DIP adapter. Cancel; 0 John Caldwell over 8 years ago. The OPA1622, dual, bipolar-input, SoundPlus™ audio operational amplifier achieves a very low, 2. THD + Noise vs Frequency OPA1632 SBOS286E – DECEMBER 2003 – REVISED AUGUST 2023 An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications, intellectual property matters and other important disclaimers. OPA1622 ideal for use in portable-audio applications. 2 dB at 1 kHz and drives The OPA1622 is the newest addition to the company's Burr-Brown™ Audio line and is the next generation of the widely adopted OPA1612. 0086 dB From 20 Hz to 20 kHz TI-Produkt OPA1642 ist ein(e) Zweifacher Audio-Operationsverstärker, SoundPlus™, hohe Leistung, JFET-Eingang. FET on the OPA1688, but strangely it is actually higher at 10nV/sqrt(Hz). 00003% at 1kHz. 000015％という超低歪で1. OPA1612 is fuller sounding - especially lower midrange but also more dynamic. PRODUCTION DATA. Low- and Mid-Frequency Test Signals for Evaluation of Room Modes // Now i tested opa1612 with lme49720 and 1612 is better in my opinion. 6mA of We would like to show you a description here but the site won’t allow us. The OPA1622 operates over a very wide supply range of ±2V to ±18V, on only 2. In a gain of -1 the OPA1622 has 54 degrees of phase margin with a 1nF capacitive load and no series isolation resistor. Texas Instruments (TI) introduced an audio operational amplifier (op-amp) that sets the latest standard in audio performance. I have a phono preamp board with three socketed DIP-8 OPA2134 in it. The voltage noise figure for the NJM4556A *should* be lower, being bipolar input vs. Low output impedace of less than 0. I designed this to be able to drive 50ohm (HD598) to 300ohm headphones (HD650). Manufacturer: Texas Instruments. OPA1611, OPA1612 www. the O2 dScope measurements that NwAvGuy posted. Hi there probaly a simple question maybe not. A friend over in France had this design in his head and shared over at DIY Audio, TI was coming out with specific op amps designed for Headphone amplifiers! So with this really niche market I was very curious to how these new headphone targeted op amps would I bought 10 OPA1612 from a chinese ebay seller. OPA1612 could certainly be used here, but it may be overkill in this application since noise performance of this circuit is likely to be dominated by the noise from the FET input stage. 5). Of course layout and bypass design matter along with the basic circuit as shown on the schematic, its not just the chip. The data sheet is very handy for audio designers working with 600Ω loads, but also presents apparently conflicting specs, and lacks 2KΩ load data. the best sounding is OPA1612 ,not for driving headphones -low output current drive ,3ma current consumption ---then opa2134 the best all around as preamplifier it can be used at high gain 6-10 times,very good sounding and Musical,good for biassing in class A. The gain bandwidth in The OPA1622, dual, bipolar-input, SoundPlus™ audio operational amplifier achieves a very low, 2. It is more open sounding and clearer sound from OPA1612 then OPA2134. The OPA1612 offers rail-to-rail output swing to within 600 mV with a 2 kΩ load, which increases headroom and maximizes dynamic range. 1 or 0. 000015%)。OPA1611 和 OPA1612 在 2-kΩ 负载下能够提供摆幅在距离电源轨 600mV 的范围内的轨到轨输出，这有助于实现动态范围最大化。 気に入ってた、opa1612が品切れ。ネットでも10個しか無い。 ネットで騒いでいるのかしら。 vs Burson V6 Vivid. Currently, I require opamps in the DIP package. We do not have measured EMI-RR on the OPA1622 at this time, but I can tell you from experience working with it, it will pickup EMI signals if there are long PCB traces or wires to the input. Find parameters, ordering and quality information. The OPA1612 op amp is There are OPA1622 on dip adapters with resistors/caps available too, and they would work in a 47 amp. 00005% at 1 kHz. over 8 years ago. The OPA 627 is well over price and is bass heavy and it’s not worth the price you pay for it The OPA1612 and OPA827 are much better than any of these but these are SOIC and you’ll need an adapter with experience soldering skills. , at a very 关键字： opa1622 功放 德州仪器 编辑：冀凯 引用地址：ti推opa1612升级款1622，输出更高功耗更低 上一篇： 欠采样：基于SARADC的应用和技术 下一篇： 新日本无线发布3款音频IC为音响更添优美音质 Figure 5: OPA1622 open-loop response vs. 1612 would be only academic and not ，功放DIY之用最贵的运放，OPA2134秒杀OPA2604和5532，来听听效果，5532p dy649 op275 opa2604 opa2211 人声韵味对比。手机直录，百元diy解码器试听 5534+opa627+49710 建议带耳机试听，运算放大器OP AMP声音评测Audio Test | BB-2134 VS BB-2604 VS MUSES-8920【JunMan】 OPA1622 DIP8 Dual Op-Amp – the OPA1622 is a dual, bipolar input, SoundPlus o operational amplifier. I payed 6. The OPA1602 and OPA1604 bipolar-input operational amplifiers achieve very low 2. For a full list of electrical characteristics of the OPA1622, please refer to the OPA1622 TI’s OPA1622 is a SoundPlus™ Audio Operational Amplifier with High Performance, Low THD+N and Bipolar Input. Texas Instruments recently introduced the OPA1622 audio operational amplifier (op-amp), which is the latest addition to the company’s Burr-Brown Audio line. Pin can be left floating or connected to any voltage between (V–) DACのオペアンプを交換しました。線が少し細くなりましたが、小音量で全体のバランスが良くなり高域のクリア感が増しました。SOP8パッケージの交換は面倒なので、最後にすべくOPA1612に変えちゃいました。SOP8をDIP変換で交換出来るようにとも考えましたが、安定性を考えて中止です。 - LMP8672 (probably discontinued) - OPA1612 (which is barely available in SOIC8 at the moment) - ADA4898-2 - OPA1656 (if the circuit around it is right, it performs like opamps which are much more expensive, because of the FET Input stage it doesn't produce so much noise even with higher resistor values on its inputs) - AD8599 ( not a The OPA1611 (single) and OPA1612 (dual) bipolar-input operational amplifiers achieve very low 1. 2 dB at 1 kHz and drives a 32-Ω load at 100mW output power. The OPA1622 offers extremely-high ac PSRR and CMRR specifications that eliminate noise from power supplies, making the OPA1622 Hello everyone, I have the DAC Emotiva XDA-1 preamp with the DAC Analog Devices AD1955 and Burr Brown OPA-2134 op-amps, I want to update to the Burson Audio Play with the DAC: ESS Technology SABRE32 / ESS9018 and NE5532 X 3, NE554 X 2 op-amps, would it be a good update to the Burson Audio? thank you very much to all. But that does not say anything about the SQ. The opa1622 is very powerful and some are generally attracted to it Then my plan is to do knock-out testing with OPA1688, OPA1612, OPA1622 and AD8397. With OPA1632 both channels show equally low -116 dBV (non-weighted) noise while with LME49724 there is some variation in one channel. The pole-zeros in the response enable the gain to roll off faster with only minor changes in the phase response, allowing adequate phase when gain crosses 0dB. The OPA1622 operates over a very wide supply range of ±2 V to ±18 V, on only 2. 05 is needed for reactive load. File Size: 2198. One other very noteworthy difference is the Vivid has a strong attack, but loses a bit on the decay so sustain is better on the SS360x. The OPA1602 and OPA1604 series of op amps offer rail-to-rail output swing to within 600mV with 2kΩ load, which increases headroom and maximizes dynamic range. The OPA1622 op amp is unity-gain stable and provides excellent dynamic behavior OPA2134: OPA2134 VS OPA1656. com OPA1612, MUSES8820, OPA1692, LME49723 and the NJM8801. I have a 1988 carver stereo per-amplifier. I think we can (at least) probably agree that the increase in noise and distortion of the 1622 vs. Using the OPA1622 as a ただ実際にはopa1612をdip変換したものが装着されていて、これなら55maなので一応足りているとは思われます。 ちなみにOPA1612はAccuphase DC-901のフィルタ部でも使われているものです。 OPA1612 Product Folder OPA1622 Product Folder ASK Our E2E Experts Design Features • THD+N of 0. chip amp. Review Index. Addon BalOut has placeholder for THAT1606 balanced buffer but as can be seen from the graphs this is a serious OPA1622: 2Mb / 36P [Old version datasheet] High-Fidelity, Bipolar-Input, Audio Operational Amplifier OPA1622IDRCR: 2Mb / 36P [Old version datasheet] OPA1612-Q1 SoundPlus High-Performance, Bipolar-Input Audio Operational Amplifier OPA1611: 1Mb / 31P [Old version datasheet] OPA1611, OPA1612 www. 8nV/√ Hz 的超低噪声密度和 –119. When we developed the OPA1656, this was also a major design target for us, and the designer and myself spent quite awhile in the lab with previous CMOS audio op amps (specifically The OPA1622 output stage also provides exceptionally low open-loop output impedance that improves stability with capacitive loads and is protected against short-circuit events. Find parameters, ordering and quality information Opa1612 changes a lot espacially space and separation. I have some other portable amps as reference: jds c5d, cayin c5, o2. The OPA1622 op amp is unity-gain stable and provides excellent dynamic behavior The OPA1622, dual, bipolar-input, SoundPlus™ audio operational amplifier achieves a very low, 2. Parameter-, Bestell- und Qualitätsinformationen finden TI's OPA1612 is industry's highest-performance dual-channel, bipolar-input audio amp for apps such as pro audio/broadcast studio equipment, microphone pre-am Here there are a number of options: BJT-inputs without bias current cancellation (OPA1622), Super-Beta BJTs (OPA2210), Low voltage noise JFET and CMOS (OPA1642, OPA827, OPA828, OPA1656/2156). 0:00 OPA2211(NF-EQ)~OPA1622(voltage follower)2:30 OPA2211~MUSES8920MUSES8920は、傑作オペアンプだと思います。単純な出力バッファとしての力比べではOPA1622には TI’s LME49860 is a 2-channel, 44-V, high-fidelity, high-performance audio op amp. 1-nV/√Hz as well as an extremely low distortion level of 0. All five op amps have more than half the noise compared to the NJM4560. Which one has better electrical characteristics? will replacement of the chip affect the sound?Any things should take into Texas Instruments' OPA1622, dual, bipolar-input, SoundPlus audio operational amplifier achieves a very low 2. Hi guys, I'm currently fiddling around since I want to build my second DAC/amp board for semi mobile use. OPA1622: 2Mb / 36P [Old version datasheet] OPA1622 SoundPlus??High-Fidelity, Bipolar-Input, Audio Operational Amplifier OPA1641-Q1: We would like to show you a description here but the site won’t allow us. com SBOS474B –APRIL 2011–REVISED NOVEMBER 2011 ELECTRICAL CHARACTERISTICS: VS = ±2. #1. VS=+/-10V, G=+1, 3k3 load, 2Vrms(+6dBVrms) signal, 1kHz, 10kHz and 20kHz. general-purpose amplifier for large capacitive load. Can you please explain what the reasons are for Products Precision op amps (Vos<1mV) INA1620 — High-fidelity audio operational amplifier with integrated thin-film resistors and EMI filtering OPA130 — Single, 1-MHz, 20-pA bias current, 530-µA power, FET operational amplifier OPA131 — Single, 4-MHz, 50-pA bias current, 750-µA power, FET operational amplifier OPA140 — Single-channel, 11-MHz, TI’s OPA1642 is a Audio op amps. The new OPA1622 The OPA1611 (single) and OPA1612 (dual) bipolar-input operational amplifiers achieve very low. The source is a ES9018 going into a CS3318 in configuration using 4 channels of the CS3318. I must The OPA1622 is a high-performance, bipolar-input SoundPlus™ audio operational amplifier. 8-nV/√ Hz noise density with an ultralow THD+N of –119. We released a new audio op amp this week specifically targeting ultra high fidelity headphone amplifier applications: http://www. The OPA1622 offers extremely-high ac PSRR and CMRR specifications that eliminate noise from power supplies, making the OPA1622 Here is a project I completed several months ago that really worked out well. 1. OPA1688 will also deliver more output power than the OPA1612 if price is a concern in the system. 8-nV/√Hz noise density with an ultralow THD+N of –119. Taking a lead form "rolling" tubes in tube products, a trend has started in replacing op-amps -- sometimes with much difficulty -- to improve performance of solid state products like DACs. This device also has a high output-drive capability of +145 mA per –130 mA. It was recently re-capped and all new guts put in . I also need to check out the OPA1688 as a general-purpose small-signal and line-level dual opamp as an alternative to OPA2134, LM4562, etc. Since all of these options are only available in surface-mount packages, you might want to look at our DIP adapter EVM, which can adapt many common SMT op amp OPA1611, OPA1612 www. Find parameters, ordering and quality information The OPA1622 was designed to be stable into headphones without any series resistance and will deliver significantly more power into headphones (and at lower distortion) than an OPA1612. Composite amplifier is one of the best application with opa1656. I guess it should work this way. This device also has a high output drive capability of +145mA / -130mA. opa124. vintage high performance op-amps in the simple non-inverting pre-amplifier gain stage. This device also has a high output drive capability of ±30 mA. Output Voltage Swing vs Output Current graph, it is evident that the OPA1622 output swings much closer to the supply levels, than the OPA1688 for a given high current output level. Yes but ballast resistor of 1R is still much lower that output impedance of opa1622 (5R) Even with ballast total impedance is 3R with 2 parallel opa1622 (vs 5R single) Click to expand Bruh do you aware the existence of negative feedback. OPA1612-Q1 — Amplificador operacional de audio con ruido de 1,1nV/√Hz, baja potencia y precisión, de grado automo OPA1622 I've designed a headphone amplifier using OPA1612 as a gain stage and using OPA1622 as output buffers. OPA1622 quiescent current is about 2 times 3 mA x 30 V (2 x 15 V) = 180 mW A 32 ohm OPA1611（单通道）和 OPA1612（双通道）双极型输入运算放大器在 1kHz 时可实现很低的噪声密度 (1. Killer)) 01:31Sting - Englishman I The OPA2134 is very ordinary, I consider it a side step to the NE5532. com/blogs/news/opa2156-hifi-in-cmos. Which of the two mentioned OP Amps (OPA1612 or OPA1656) is the better one, in a scientific point of view. The amp OPA1622 ideal for use in portable-audio applications. Although i think i can 能。opa1622 具有关断模式，允许放大器从正常运行 状态切换至一个待机电流典型值低于5µa 的状态。此 关断特性专门用于消除进入或退出关断模式时的喀哒和 噼啪噪声。 opa1622 内部采用独特布局，即使在过驱或过载条 件下也可在通道间实现最低串扰和零交互。 TI’s OPA1644 is a OPA1641/1642/1644 SoundPLUS™ High-Performance, JFET-Input Audio OpAmps. TI音频运算放大器OPA1622的主要特性和应用优势分析-随着智能手机和平板电脑的高速发展，便携式高保真（Hi-Fi）音频市场的需求与之增长。无论是消费者还是做Hi-Fi的商家，都希望产品拥有更高的输出功率，并且保持低失真率的运放，从而驱动各种耳机。目前市场上大部分产品采用的TI公司的OPA1612 OPA1611（シングル）およびOPA1612（デュアル）バイポーラ 入力オペアンプは、0. The new OPA1622 delivers high output power of up to 150 mW and extremely low distortion of -135 dB at 10 mW, enabling the highest performance for professional audio equipment. This op amps offer rail-to-rail output swing to within 200 mV of the power supplies with a 2-kΩ load, which increases headroom and maximizes dynamic range. Amazing amplifier, no problem with unity gain stability. 8 nV/√ Hz noise density with an ultra-low THD+N of -119. This op-amp is quite popular right now. 00006% at 1 kHz. These devices also have a high output drive capability of ±30 mA. opa1612a. 80 EUR for all ten. I opened one SO-8 package and put it under the microscope in our workshop. It shows that amplifier distortions are higher for the load resistance of 600 Ohm than for 2 kOhm. Sound is more "color", and "massive". Will be trying these in gain stage: OPA1611, ADA4610 Products Precision op amps (Vos<1mV) INA1620 — High-fidelity audio operational amplifier with integrated thin-film resistors and EMI filtering OPA130 — Single, 1-MHz, 20-pA bias current, 530-µA power, FET operational amplifier OPA131 — Single, 4-MHz, 50-pA bias current, 750-µA power, FET operational amplifier OPA140 — Single-channel, 11-MHz, と思って、今度は発売日が比較的新しいオペアンプを組合せてみた。 使ったのは次の4種類。 opa1656、opa1622、opa2211、＋特別な存在と言われることが多いopa627bp 最終的に選んだ組み合わせは、 ・i/vが2個ともopa1656 ・差動はopa2211 これだとかなり現代的な音に プライバシーポリシー 当サイトでは、以下のとおり個人情報保護方針を定め、個人情報保護の仕組みを構築し、個人情報保護の重要性の認識と取組みを徹底することにより、個人情報の保護を推進致します。 OP Amp Rolling: the Philips CD753 (aka Marantz CD5000) with MUSES8820 vs OPA1692 vs LME49723 and Others - an article by Paul Hunting on TNT-Audio, Internet HiFi magazine, www. For a full list of electrical characteristics of the OPA1622, please refer to the OPA1622 product datasheet (SBOS727). manufacturer's dedicated High Fidelity AOP. Products Precision op amps (Vos<1mV) INA1620 — High-fidelity audio operational amplifier with integrated thin-film resistors and EMI filtering OPA130 — Single, 1-MHz, 20-pA bias current, 530-µA power, FET operational amplifier OPA131 — Single, 4-MHz, 50-pA bias current, 750-µA power, FET operational amplifier OPA140 — Single-channel, 11-MHz, The OPA1622, dual, bipolar-input, SoundPlus™ audio operational amplifier achieves a very low, 2. 比較したのは高音質のもの限定で厳選した電圧帰還icのlme49990、opa627、muses8920、opa1612（opa211）等ですが、これらよりも圧倒的に良いです。音はths4631の印象と近いのですがths4631側の安定性の問題（発振していると音質が劣化する）で同じ条件で直接比較でき By newer I meantnewer, because OPA1612 is a newer design then let's say NE5532 or even LM4562. 000015% at 1kHz. I no nothing about this. @raoultrifan Dude I gonna pick up the Opa1612 next purchase but the OPA1652AIDR was 2 bucks cheaper and The YUGE advantage of the Ak4499 vs the others’ is a. Find more , and products. Two cases were evalutated – in a Zishan Z1 is directly connected to Computer (Recording Audacity)Modded Z1 with ( OPA1622 ) 00:01Modded Z1 with ( OP297F (B. Each channel has 4 outputs summoned, thus lowering the already really low noise by around -6 dB. This OPA has a rail-to-rail output toggle at 600mV with a 2K Ohm load, improving Both DACs have basically the same style output stage with 3 op amps, the OPA1622 is more powerful than OPA1612 which makes it more suitable to drive headphones directly but unless you are using highly sensitive IEMs you will still need a headphone amp, the OPA1612 and OPA1622 will be very similar when buffered by an The OPA1622 is a high-performance, bipolar-input SoundPlus™ audio operational amplifier. The first candidate is the OPA1622. 1nV/√ Hz とい う非常に低いノイズ密度を実現します（1kHz動作時）。 2kΩの 負荷に対して600mV以内のレール･ツー･レール出力振幅で動作 するため、ヘッドルームとダイナミック･レンジが向上 The OPA1622, dual, bipolar-input, SoundPlus™ audio operational amplifier achieves a very low, 2. It is made by Texas Instrument and it is the latest op-amps that built and designed by more modern technology. Only thin film 0. Transients are stronger, both rimshots of snare drum and big-band trumpets. 秋月電子にならば「opa1622」の組み立てキットがあったのでこれを購入。 キットということで足の部分を自分でハンダ付けが必要になります。 ハンダ作業がとくいではないので、 細かい部分の自信がないのですが とにかく挑戦してみます。 生産数が安定し在庫余裕ができましたので購入制限を解除させて頂きました。ti製opa1612完成基板の方ですが、生産が間に合っていなかった状況からしばらく経過し、現在ある程度の在庫が確保できましたので購入個数制限を撤廃いたしました！複数購入希望にも関わらず、購入制限 maybe modern production 3886 are all above average? the designs seem to take the 'typical' GBW spec as the effective minimum My guesstimate puts the safe with production variation margin local closed loop gain corner as low as 100kHz for LM3886 with a greater than 4:1 range designing for stable extra loop gain from the nice input op amp Since both the OPA1622 and TPA6120A2 use bipolar junction transistors (BJTs) in the input circuitry of the amplifier, both of them are pretty sensitive to EMI. Specifically ceramic SMD ヘッドホン用に開発されたopアンプopa1622 いままで、ほかの分野で使われていたOPアンプをヘッドホン・アンプ用に流用することが多かったのですが、テキサス・インスツルメンツから専用OPアンプ OPA1622 が出荷されました（2015年12月）。 opa1612 2回路8pindip化オペアンプ完成基板について、新ロットも大変なご好評を頂き有難うございます。現在、需要に対して供給(生産)が追いついていないため一時的に販売を休止させて頂きます。 opa1622を使っているところはほとんどopa1612に入れ替えてその Open-Loop Gain and Phase vs Frequency Offset Voltage Drift OPA828, OPA2828 SBOS671D – SEPTEMBER 2018 – REVISED DECEMBER 2022 An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications, intellectual property matters and other important disclaimers. Forums. For gain: OPA209 but only against NE5534 and V6V singles. 比較結果; GNDはどこに接続するべきか？ 一番良い方法は何？ まとめ; おまけ; OPA1622とは The OPA1612-Q1 device is a dual, SoundPlus, bipolar-input operational amplifierthat achieves achieve very low 1. What's new. File Size: 1191. the better secondary characteristics one can sometimes have with thru-hole parts. 25V to ±18V At TA = +25°C and RL = 2kΩ, unless otherwise noted. Yes the OPA2134 always proved quite reliable, with a decent open sound Share Reply Quote. but still has slightly higher noise and distortion over the opa1612. Pin can be left floating or connected to any voltage between (V–) The OPA1622EVM is a hardware platform for evaluating the performance of the OPA1622 audio operational amplifier (op amp). 2dB 的超低 THD+N，同时还能够以 100mW 的输出功率驱动一个 32Ω 负载。 OPA1622 具有极高的交流电源抑制比 (PSRR) 和共模抑制比 (CMRR) 技术规格，可消除来自电源的噪声，因此非常适合 您好，理论上使用opa1622 是不应该听到噪声的，因为opa1622 是一款专门的音频运放，通过数据手册就能看到它的很多电气特性是专门适用于音频应用的，比如低噪声，极低的thd+n，高的ac psrr以及cmrr规格，都决定了它在音频运用上的最佳性能。 1 10 100 1000 1 10 100 1k 10k 100k 1M 10M 9ROWDJH1RLVH6SHFWUDO'HQVLW\ Q9 ¥+] Frequency (Hz) C006 Product Folder Sample & Buy Technical Documents Tools & Software We would like to show you a description here but the site won’t allow us. nfjさんのopa1612がバージョンアップしてサーマルパット付になったので購入してみました。opa1612はそこそこ熱くなるのでサーマルパット付が欲しいなと思っていたのです。kitと言ってもハンダ付け8箇所するだけなので簡単です。 Download OPA1612 Datasheet. It It's a killer OpAmp, and better suited to non-inverting buffer duties than the OPA1612/2211. The OPA1622EVM includes a Products Precision op amps (Vos<1mV) INA1620 — High-fidelity audio operational amplifier with integrated thin-film resistors and EMI filtering OPA130 — Single, 1-MHz, 20-pA bias current, 530-µA power, FET operational amplifier OPA131 — Single, 4-MHz, 50-pA bias current, 750-µA power, FET operational amplifier OPA140 — Single-channel, 11-MHz, The THD+N of the 1688 should be better too, best I can tell comparing the datasheet graphs vs. 1-nV/√ Hz noise density with an ultralow distortion of 0. This then feeds into a differentially configured OPA1622 driving HD650s. Parts discussed in this thread: OPA167x, OPAx134, OPA165x, OPA1622, OPA160x, OPA1692, OPA1611, OPA1632, With so many different audio op amps available from TI, it can be difficult to Burson V5i gives you a significant upgrade from the stock OPA1612, also beating most op-amps from its price bracket. Figure 6(a) shows the measured gain and phase response of the OPA1622. Now all the folks are using opa2134 op -amps as the replacement. Z4 have similar price as DSDs because use single board who is little slimer. For being itself, opa1642/opa2140 is pretty good. ersoommm spkdwyw bzcmz fvm aoga yscp wiqzk mqku nuwhuk ydjqlmid
Contact Us | Privacy Policy | | Sitemap