Opa627 vs opa1612 Distortion will strongly depend on load it drives. 另外还知道一个JFET运放，这三类有什么区别和特点呢，在设计中要注意哪些方面呢； 3. Which is slightly lower performance than the OPA1612 bipolar op amp. V5i also sounds a bit faster and snappier than OPA627, transient and attack are more pronounced on V5i. It could be very interesting to test their performance: - SNR - Bandwish - slew rate -. Mar 14, 2010 · OPA 1611 / OPA1612 any Impressions This is apparently a new opamp made by TI, has anyone op-rolled them into anything, any impressions. Even the OPA OPA627 which has a good reputation is more expensive for a lower gain of 30dB and noise about twice as high. Must revisit the OPA627 cause its bite my be tamed by better power supplies / regs / decoupling. I have tried my favorite list of op-amps: OPA1656, OPA828 (with adapter), OPA627 (with adapter), and AD843AQ (with adapter) . Any detailed comparison done (in the context of audio) to the opamp, OPA627, that they are supposed to replace? Thanks! The OPA1612 (2. ADI 825 or any AD requires strict rules for it to operate in due to low PSRR. Next, we will take a closer look at the comparison between the AD797 and OPA627. I plan on using the OPA1644 as the Trans-impedance amplifier to convert the current from the PCM1792A DAC to a differential voltage this signal into a single OPA627 (one each for left Jul 3, 2016 · AD8620やOPA1612、ADA4627などのハイエンドオーディオ機器向けのオペアンプはそれなりに良いです。 当分は下記組み合わせで慣らしたいと思います。 TI’s OPA627 is a 55V/µs high-speed 0. Find parameters, ordering and quality information Jul 3, 2016 · AD8620やOPA1612、ADA4627などのハイエンドオーディオ機器向けのオペアンプはそれなりに良いです。 当分は下記組み合わせで慣らしたいと思います。 TI’s OPA627 is a 55V/µs high-speed 0. Would the OPA-627 be considered overkill for a Headphone Amp In the end I just preferred listening with, the too much clarity in the top octave, LME49723. Jan 28, 2018 · 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). OPA828 is the newest 627, cheap too coz 627's on marketplaces are 99. Dec 15, 2019 · I settled on the Sparkos SS3602 versus several others including the OPA1612, the classic audiophile favorite, OPA627, and Burson V6 Vivid. 音に対して投資を惜しまない層に向けた Highend ラインの他に、将来の日本音楽界のために若いうちから耳を育ててもらうべく、低価格な Standard ラインの2ラインで展開していく。 ただし、どちらも抜群のコスパを心掛け、業界へ貢献して行く所存である。 Other Parts Discussed in Thread: OPA627, OPA1622, OPA1688, OPA1612, OPA2132, OPA2134, OPA2604 Hi all, I'm looking for a very good THD performance op-amp, better than 100dB over 10Hz to 30kHz. Oct 19, 2023 · TI’s OPA627 is a 55V/µS, High-Speed, 0. The OPA1612 is a high-performance operational amplifier with low noise, low distortion, and wide bandwidth for audio and industrial applications. 2万 78 2021-10-11 04:26:19 May 21, 2023 · It also emphasised bass more than the OPA1612, with perhaps a bit more lower midrange presence and slightly less upper midrange. The review is an unbiased and no influence overview of my experience and what I heard, while fitting various amps to the ZD3 Jun 5, 2010 · 原音の守護神 MUSES01/02が届いたのでDACに入れて聞いてみた。 現在使用のOPA627BP*2→DIP8pinは使用時間がゆうに100時間を超えるので状態が違うが、とりあえず聞き比べした感想を書いておく。 曲は、 瞳がほほえむから／今井美樹 キミドリ／坂本真綾 ありったけの愛／Theatre Brook 情熱大陸／葉加瀬 Other Parts Discussed in Thread: OPA2107, OPA627 1. Copper leadframe construction used in the OPA1611 and OPA1612 series op amps improves heat dissipation compared to conventional materials. Mar 5, 2018 · Hello everybody, I read on several forum the advantage to use specific AOP for the final stage of DAC or Amplifier. 05K subscribers Subscribe 3 Description 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. 8μV/℃ のドリフト、高精度オペアンプ です。パラメータ、購入、品質に関する情報の検索 Aug 3, 2019 · Switching to the OPA1612 and the OPA1642 doesn't appreciably change the measurements of the MC stage. OPA627＆OPA1612デュアル搭載☆ FX Audio FX02 Final Edition アイゼン×アイゼン 1. The OPAx828 operate over a wide supply-voltage range of ±4 V to Apr 5, 2021 · We would like to show you a description here but the site won’t allow us. 999999% fake and genuine 627BP's cost a bundle. Aug 11, 2023 · Deep down to the each op-amps specification, especially for THD, slew-rate, settling time and noise, the OPA627 is have so much better numbers than the OPA1622. 5 of my “mini-pre” a reader asked if I had done any comparisons of the different opamps I suggested and I replied I hadn’t. Indeed their forward midrange gives them a very exciting character, in which you feel very close to the stage. The OPA1655 is the single channel version of the OPA1656. I suggest the following reference - 994Enh Discret Jul 4, 2009 · OK i've been testing the OPA2227, OPA2228, OPA2134, OPA1612, and the Muses 02. I would recommend OPA2134 or OPA134 and if you have money the OPA627 or OPA637. 1nV/√Hz Noise, Low Power, Precision Operational Amplifier. Dec 25, 2016 · オペアンプについてお聞きします。 LME49880、OPA1612、OPA2211、OPA627、OPA1622 音質のいい順番を教えて下さい。トゥイター向けのオペアンプやミッド向けのオペアンプがあれば、教えて下さい。 お願いします。 Feb 28, 2021 · G'day all, I guess that this sounds suspiciously like the subject of 'op amp rolling, but actually it isn't. Jan 2, 2002 · Hi, an old question - what is your experience for this OP's in Audio High End amplifiers? Which have the "true, unsophisticated sound"? LM6171, OPA134, OPA627, OPA227, OPA604, AD812, AD823, or others - DIP case preferred. the LME49720 only tolerates +/-17volt, from opa2604 I was advised against "the opa2604 is unstable and above all not esd stable". However, due to space constraint, I can not use them in my headphone amp (the browndog couldn't fit). This may well be due to the effect of the output cap (ICW SA Clarity) used in the 12B4 and absolutely no caps in the opamp buffer signal path. On a light or virtually no load 161x is extremely linear. NE5532、OPA2604、OPA2111、OPA2107、OPA2132、OPA1612、OPA627 都是运算放大器（Op-Amp）。 2. I listen all OP's I have samples on my side Oct 19, 2014 · AD8066 AD823 AD826 AD827 AD8397 AD8599 AD8610 AD8620 Bandwidth Bias current CMRR Gain LM4562 LME49710 LME49720 LME49721 LME49722 LT1057 NE5532 Noise Offset voltage OPA134 OPA1612 OPA1642 OPA2111 OPA2132 OPA2134 OPA2140 OPA2211 OPA2365 OPA2604 OPA627 OPA637 OpAmp PSRR Slew rate THD TL072 TLE2141 噪聲 增益 失真率 轉換率 運放 運算 Apr 6, 2020 · 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. On one hand I’m surprised that I OPA828比OPA627提升不少，三频的分离度，低频的深度力度，乐器的清晰度，人声的细节都是一耳朵提升，如果阁下不能明显听到区别，那么升级运放不是很有必要了，从其他方面找找原因。 TI’s OPA1611 is a 1. But, just like it’s pretty much impossible to explore the Veyron’s full performance anywhere but on a race track, the same is true with the OPA627. AkLIAM 2 PCS AK05 LC5 AK06 LC6 Low Noise Low Distortion Class A Discrete Op Amp Upgrade Replace Muses02 OPA627 OPA1612 LME49720 OPA2604 Mar 17, 2019 · For audio use, I see no reason to buy OPA627 when you have OPA827, OPA828, OPA164x, and OPA1656. And ADA4627, which appears intended as a direct replacement (a decompensated ADA4637 exists as well). Other Parts Discussed in Thread: OPA1611, OPA1612, PGA2500, INA163, NE5534, OPA627 Hi, Are there any opamps that would be a better drop in replacement for the NE5534AP chip? I would like something that offers even lower noise and better general performance to use in a microphone preamplifier for recording. A cost saving alternative is the OPA1678 which is my new favourite OpAmp R2R output, costs almost the same as the 5532, similar Mar 17, 2019 · This article shows the measurements I took on the OPA164x family. May 21, 2023 · One consequence is their stage is slightly narrow, however they have a significant amount of lower midrange warmth, better midbass than the OPA1612, and more midrange detail. Performances of OPA627 and OPA828 are very close. 在看opa2111的datasheet时看到了DiFET和BiFET这两个名词，上面几种运放都是哪一类啊； 2. 华硕貌似有个DAC用了6颗 Feb 11, 2021 · The OPA627 opamp The OPA627 from Burr-Brown is a laser-trimmed JFET input opamp with excellent DC precision; the input offset voltage being typically ±100 μV. Amazing value and no more urge to upgrade. For use with this DAC, my preference order is like: AD843AQ > OPA627 > OPA828 > OPA1656 > OPA1612. lme49713 vs opa627 vs AD815 vs opa2134 vs opa1612 vs opa2836 rhythmsandy 2012-08-24 7:28 pm Replies 2 Views 10K 2013-06-30 2:05 pm geraldfryjr P The ADA4625-1/ADA4625-2 provide optimal performance in high voltage, high gain, and low noise applications. I doubt I will jump up enough to try a Sparkos or Burson. The best op-amp I could find for the job is OPA627 so far. I'm not necessarily advocating the Sparkos. The distortion is very low, even into a 600 Ω load, though it is increased by the usual common-mode distortion when series feedback is used. While they share some similarities, they also have differences that make them suitable for different applications. 正确的想法是用更新的更好的运算放大器替换 OPA627、以获得更好的 BW 等 到目前为止、我仅更换了 OPA627、并跟踪了电路板以确定其布线方式、并没有进行太多调试、因为当仪器运行时、现场做起来有点困难。 Just finish soldering of 4 new OPA828, a new audio grade op amp supposed to be replacing OPA627. 无聊开始折腾运放 哪个运放好? 有哪些特性? 比如把LME49720HA 换成OPA627X2, 有什么提升么? 换成MUSES02呢? MUSES02 (01)是不是最好的? 有人说吹的, 不过目前看价格, 似乎是最贵的. 此外还有电压型运放和电流型运放，这两种在应用和电路设计中上有哪些区别，上面几种运 Jul 7, 2023 · 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 Jul 26, 2020 · The ultra open version: OPA1612 & OPA2228, Nichicon KZ caps and Dale or Takman metal film resistors and pure silver wiring. The input common-mode voltage range includes the negative supply, and the output swings rail to rail. Nov 26, 2017 · I'm looking for a replacement for the NE5532 (dual opamp), which can handle +/-18Volt and doesn't oscillate relatively easily. 5 db ）所以整套系统理论最高 Jan 16, 2025 · Brad’s Audio Review (1/7 through 1/11/2025) Fosi Audio ZD3 This is my first real review of a home audio product, the Fosi Audio ZD3 DAC (digital to analog converter). OPA627 treble is actually pretty close to V5 treble. Anybody has an interesting suggestion to do? Thanks in オペアンプ 10種 音質 比較 価格順 MUSES03 OPA627 OPA2604 OPA2134 OPA1622 MUSES8920 MUSES8820 LM4562 NE5532 TL082 ukaka5656 1. 1nV/√Hz 噪声和较低 THD 的高精度 SoundPlus™ 音频运算放大器。查找参数、订购和质量信息 Jun 7, 2016 · The difference between OPA627 and V5i is more on the treble quality where OPA627 sounds a tad smoother than V5i, while V5i has a more lively sparkle on the treble. They'll oscillate and/or sound way colored. I used 4 Burson V6 Vivid in my Burson headphone amp but I have replaced them all Feb 28, 2021 · However, I won't swap to an OPA1612 because I am sufficiently happy with the LM4562 performance. Texas Instruments provides information about the OPA637 operational amplifier, its features, applications, and technical specifications for engineers and designers. I also ripped out the (assumed) 5% throughole Carbon resistors and replaced them with surface mount (less than 1% tolerance) resistors. OPA827 is a very very good opamp, better than OPA2107. It is musical and balanced, but in front of OPA627, I found it to be slightly congested. I also swapped an LM4562 into the tone control circuitry at the same time as replacing a failed bass potentiometer. This article will introduce its pinout, applications and datasheet. The OPA1611 and OPA1612 series op amps are capable of driving 2-kΩ loads with a power-supply voltage up to ±18 V. 三首不同风格歌曲试听6种常见运放 本期测试的运放有 OPA2604AQ OPA627AU OPA2111KP OPA2132PA LME49860NA JRC5532DD 采用设备 解码器： D38 双9038Q2M （动态范围115-120db） 前级功放： 博声L1 商家标称动态范围116db@1Khz （未测） 录音声卡： 福克斯特2i2 LINE IN 线路输入 （线路端动态范围 108. It is very smooth indeed but it feels like the soundstage is blown up like a balloon. These two new ones are far better than my old toys like OP111, OP455, OP627, AD797, AD847, LME49710 etc These new OP AMPs are cheap and cost effective. ti. Dec 6, 2018 · Newer so-called audiophile op-amps have a higher bandwidth, than the traditional ones, so are more sensitive to board layout and can easily oscillate. 5dB/mW Impedance : 50 Ohms And Feb 22, 2016 · “比如30多年前的OPA2604、2134，到后来的OPA627，以及近几年的OPA1612，都是口碑非常好的产品。 ”德州仪器高精度运算放大器产品线市场工程师周颖表示，“去年中国市场上很多主打Hi-Fi的智能手机、智能平板、播放器、智能耳放都采用了OPA1612方案。 3 Description The OPA627 and OPA637 (OPA6x7) operational amplifiers (op amps) provide a new level of performance in a precision FET operational amplifier. Jan 6, 2010 · I have an Onix XCD-99 which is basically a Music Hall CD-25. The OPA827 is a brighter sounding version of the 627 (unity gain) but at a huge cost reduction. co. These op amps supply low offset voltage, low drift over temperature, low bias current, and low noise with only 60-nVRMS 0. Also low offset voltage is important. Feb 11, 2021 · 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. The OPA 1612 and the 1642 is to my ears better than the 2134. It is a bit noisier, but also substantially cheaper. I have settled on 4x OPA1656 in my Burson headphone amp and 4x OPA1655 in my Ayon DAC. SparkoS Labs OPA easily outperform any monolithic OPA in terms of open loop gain, noise, output current and Class A bias current amplitude. Audio amps in relation to ※2023/04/13より新ロット！※<br>・新設計基板を採用し、EMI対策と放熱効率UPによる高音質化 & ローハイト化！<br><br>OPA627AU 2回路DIP化オペアンプ完成基板のご好評を受け、新たなDIP化完成基板オペアンプを販売いたします！<br>SONパッケージタイプのOPA1612を専用開発基板にてDIP互換化した Mar 22, 2023 · 自然声DAC-1是自己顺手出的一台解码，它的电路设计相当讲究（尤其是电源部分设计到位），声音底子非常不错。自己拿到手后，电路上做了一些优化和改进，重点是把用料升了个级，声音比原始样机有了明显的提升（成本… Part Number: OPA1622 Other Parts Discussed in Thread: OPA1688, OPA1612 I'm currently using the OPA1622 as the output amplifier of a DAC product I'm developing. Jan 13, 2024 · 0:00 AD8453:53 OPA627先日OPA2134とOPA2604をフォノアンプでテストし、当時のアナログ風味も悪くなかったのだな、とカンジました。で、これも少し前の Mar 27, 2019 · OPA1656 / OPA1612 / Burson V5i / OPA627 / Genuine NE5532 / Genuine Muse 02 / 0PA1622 / OPA1642 / OPA1602 The question of Op amps has already been debated on DIY audio, and I had used the OPA1656 and I think the opinions are unanimous, these Op amps are very good and seem to work the best with those amps. Now I know that the OPA-627 is known to be superior to most op-amps and better than the OPA-604. In my case the OPA828 has been a clear upgrade to the OPA627 but the OPA1656 is an upgrade to the OPA828. Now I purchased a pair of OPA828 and mounted them on SOIC/DIP adapter PCBs. Feb 11, 2021 · i will second the notion of the opa1612 being audibly superior to the ne5532 its a huge difference my daughter who patiently sat through almost 2 hours o bling listening tests on 3 upgraded cd players a nad 546bee with foil film coupling caps and 50 volt 100uf muse bipolar and wima fkp3 . As much as I think that op amps do have a 'sound', in recent days I've been revisiting the LM4562 and sonically wise, to my ears it doesn't really have that 'typical' op amp signature, it Jul 5, 2006 · What are the best sounding dual opamps (plural due to subjectivity)? Preferably in DIP-8 package. Sonically they’ve very nicely balanced but lack dynamics. Feb 23, 2019 · Kind of refreshing to know that OPA627 and LT1028 (the two best op-amps among "audiophiles" 20 years ago) do measure the best, even if inaudible. 022uf Jul 5, 2013 · Amplifiers based on integrated circuitslme49713 vs opa627 vs AD815 vs opa2134 vs opa1612 vs opa2836 Feb 22, 2016 · “比如30多年前的OPA2604、2134，到后来的OPA627，以及近几年的OPA1612，都是口碑非常好的产品。 ”德州仪器高精度运算放大器产品线市场工程师周颖表示，“去年中国市场上很多主打Hi-Fi的智能手机、智能平板、播放器、智能耳放都采用了OPA1612方案。 Sep 11, 2024 · 1. Feb 16, 2024 · 前回、NJM8830GM1の表面実装を行いDIP8化したので音質チェックしてみる。以前購入したオペアンプと聴き比べてみる。ついでに最近購入したOPA1612やOPA627AUも音質比較してみる。オペアンプは自作Chu MoyアンプやFX-AUDIO DAC-X3Jに接続。イヤホンにはソニー XBA-N3を使って試聴してみた。 NJM8830GM1同じ Apr 8, 2023 · 0:00 OPA8272:30 OPA627プリアンプの初段のオペアンプの聴き比べです。人気があり、偽物まで存在するOPA627と、そっくりな音のOPA827の比較です。OPA827が Jun 8, 2023 · By now it has been a while since OPA828 (and OPA2828) were released. Jun 8, 2023 · I made a small adapter for HVSSOP to DIP 8 including thermal pad for the 2828. I was wondering if the OPA2604's could be replace with a dual opamp like the OPA1612 with similar or hopefully better results than the OPA627's Jan 6, 2010 · I have an Onix XCD-99 which is basically a Music Hall CD-25. Sounds like those are amazing though. Apr 21, 2008 · LM6172はあまり音がよくありませんし、OPA627より安価で良い音質のオペアンプがたくさんあります。 Chu-Moyヘッドホンアンプを使ってオペアンプの音質を比較しました。 Apr 5, 2021 · Posts about opa1612 written by theslowdiyerEaster breaks in Denmark are quite long and as the weather cooperated part of the time, I did manage to squeeze in some audio-related activities A while ago when I launched the version 1. Internal power dissipation increases when operating at high supply voltages. But it looks old device TI's OPA1612 is a high-performance audio operational amplifier with low noise, low THD, and precision, ideal for professional audio and sound applications. You will always get different opinions. Jul 4, 2009 · I was also looking at OPA1612, AD8599, AD825, and OPA627. Jul 5, 2006 · The OPA1612 is very detailed and quite clinical sounding. Find parameters, ordering and quality information 0:00 OPA828 3:00 OPA827 6:00 OPA627 9:00 MUSES05 signal chain DENON DL301Ⅱ~ [ OP-AMP phono-EQ ]~OPA1622 voltage follower~ZOOM H5 OPA627は、高音質で有名なオペアンプです。 Jul 4, 2009 · There is a paper out there that I read online comparing the Opa1656 to Opa1612. 8µV/˚C max drift precision operational amplifier. TI の OPA627 は 55V/μs、高速、最大 0. OPA827 vs OPA627: This is a tough one to settle. I also really liked the OPA627 that I had in an audio-gd dac years ago. What would you recommend? 各社オーディオ用OPAMPの音質の比較です。個人的な主観であることをご了承ください。 なお、この比較は私が作成したPREーAMPを使っています。入力部はゲイン4倍の反転増幅器で後段はボルテージフォロワーの2段構成です、電源電圧は±15V。 Mar 8, 2013 · Dual mono LT1028 DIP on brown dog 021001 adapter. 8µV/˚C Drift Max, Precision Operational Amplifier. Line driver? Tone controls? DAC reconstruction filter? The better FET-input op-amps are expensive because they are laser-trimmed and prices can be crazy. LME49723 vs OPA1612 I was not expecting much from the OPA1612 as the gain specifications are not compatible but from fitting it produced a listenable sound. Aug 26, 2018 · 耳机大家坛耳机网-耳机大家坛 » 论坛 › 耳机大家坛 › 新手入门 › 入手歌德sr225e后，退烧了！ Aug 13, 2014 · The only ones in the OPA that I liked was the ones I obtained free fron the BB site via there R&D program such as the OPA1612 . What I am scared of is instability, I'm not sure if the P2 has bypass caps for the NE5532, and not exactly sure how bypass caps work with dip-8 sockets. All three have excellent THD+N specs even into 32 ohm loads, and match or exceed the OPA627's THD+N at 600 ohms. The performance of the CMOS audio op amps is actually fairly close and maybe slightly better than the OPA627, which was somewhat famous for its performance in this use case. You should be able to find single-to-dual Part Number: OPA627 Other Parts Discussed in Thread: OPA1644, BUF634, , PCM1792A, OPA1622, OPA1612, OPA1688 I was interested in using the OPA627 (and maybe a BUF634) as the output stage of my DAC/headphone amp. Dec 17, 2018 · Have a significantly better sound by upgrading the stock NE5532 op amps to something more ‘high end’ and modern like the OPA627-AP? How these op amps actually compares (sound wise) in your opinion? 十种不同价位的运放声音比较试听 MUSES03 OPA627 OPA2604 OPA2134 OPA1622 MUSES8920 MUSES8820 2. While the OPA627 will certainly work in this application, you might also want to consider the OPA1612, OPA1622, or OPA1688 for the headphone driver. I have always enjoyed OPA627/37. The clear winners for me are the 2227/8 but I think the 8 has a slight edge in high end possibly? Yeah. When compared to the popular OPA111 op amp, the OPA627/637 has lower noise, lower offset voltage, and much higher speed. If I remember correctly in some areas the Opa1656 outperforms the Opa1612 however, CMOS still don’t outperform across the frequency spectrum because CMOS aren’t at ultra low noise levels that bi polar can easily perform from in-put current and output noise??? Other cheap ones on my radar - OPA2134PA, OPA1612, LM4562NA. Mar 10, 2017 · OPA1612 — звук почти что точный и ровный с небольшим уклоном в басовый регистр, СЧ естественные, ВЧ собранные и детальные. Overall, the 12B4 was slightly smoother but the opa627 was slightly detailed. Oct 19, 2024 · my favorite opampsMuses 03 Opa1656 Opa1612 Op 828 Opa627 Ad8066 Opa2134 Lme49720 Lt1028, i am also making dip8 adapters to run the opamps in parallel and conducting experiments on running the opamps in parallel. -Overall Muses03 is less neutral compare to OPA627, It seem more live feel to me on Muses03 Muses03 after burn-in: Sound character feel the same as 1st try. Oct 5, 2023 · The AD797 and OPA627 are both high-performance operational amplifiers (op-amps) known for their precision and low noise characteristics. 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). For example; for Headphone Amps. Feb 16, 2021 · 折角買ったので好みの音になるようにDAC-SQ5Jのオペアンプを色々と変えて、これが一番かなと思える組み合わせが見つかった、と思った矢先に先日のブログに書いたネット配信の96kHzの音源を聴いてしまい、更に先が有ることを知った。 CDを何とかあの音に近づけたい！ と思って、今度は発売日 May 22, 2017 · 先日、OPA627AUを購入しました。赤いやつ というわけで、前回の記事のhttp://ameblo. I want to use Molex gold contact sockets & headers to change real fast from PCB to PCB. It was a challenge to get it soldered. Maybe slightly less extended I have one in a Aiyima a3 Tube preamp together with dual OPA627 and Voshod J6 tubes. The OPA1688 also has a different pinout from the standard Apr 17, 2022 · I ripped out the el cheap RC4580 Op-Amps and replaced them with two OPA627’s per channel mounted on Brown Dog Adapter Boards. TI 的 OPA1612 是一款 具有 1. Be mindful that the OPA2228 is a little unstable if the gain is lower than 5 with non-resistive loads but I seem to be able to use it to replace other opamps in many occasions. The table opposite compares the performance of SparkoS Labs OPAs and monolitchic OPAs. as these can be unstable and go into oscillation. I was wondering if the OPA2604's could be replace with a dual opamp like the OPA1612 with similar or hopefully better results than the OPA627's Jul 4, 2009 · OPA1612 "only" achieves -130db channel separation. 1-Hz to 10-Hz noise. All of the OPA627 but much smoother. So, the OPA1612 plus mini board is a suitable alternate to the LT1115/AD797 and the OPA1642 plus adapter to the LME49720. jp/marus-net/entry-122649143… Dec 11, 2019 · The OPA1612 has great specs at or below 1 KHz but "breaks down" by 10Khz and above. May 23, 2018 · Opa1656 and opa1612 without tweaking have better performance than almost any discrete solution. It is useful in a broad range of precision and high speed analog circuitry. Texas Instruments OPA1612 I liked that these use adapter boards, so the pins aren’t as susceptible to bending like those of DIP8 op-amps like NE5532’s. 48K subscribers Subscribe Feb 22, 2023 · Amazon. Also LME49860NA but I can't find them anymore. 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。 ゲインが1以上で容量性負荷をドライブしない回路の場合，特にノイズ特性を重視するならOPA1612が適している。 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. The sound is really good and the part is quite easy to work with. All I'll say is that I personally REALLY enjoyed listening to my latest phono preamp prototype which used OPA827s and completely passive RIAA equalization. Currently, I have AD826, OPA2604, and LT1364, all of which are Apr 16, 2019 · I would like to add the TLV2171, which has R2R outputs, and almost R2R inputs. OPA627 seems to have a tiny bit more clarity. 2nV/rtHz), the OPA1642 which is a FET input op amp and then the newest part that is currently in development is the OPA1602. OPA 1642 and the OPA 827. The OPA827 measured just as good in this same test and has slightly better AC performance specs. I hear OPA828 is the new version of the OPA627, so I may try that one out. Mar 17, 2019 · Last week TI put a preliminary datasheet online for the OPA1656, a low noise, very low distortion op amp targeting audio applications and fabricated in a Dec 6, 2018 · It's not that simple, you have to consider what the op-amp is seeing and doing. OPA627 孤高のエンペラー。 その音は、他を寄せ付けない圧倒的な存在感。 時に威圧感すらある。 透明感・ダイナミズム・開放感・表現力と、どれをとってもその辺のディスクリート回路より良い。 僕はこの石に出会ってディスクリの勉強をやめた。 Jun 8, 2023 · Hi all, I have been using OPA627 in a CD player I/V stage after the DAC chip (TDA1541A) as an upgrade from the original NE5534 and I liked it. Aug 24, 2012 · hi i wanted to know if anybody have used the above opamps. I love that tight and punchy impact. The OPA627/637 is fabricated on a high-speed, dielec-trically-isolated Nov 2, 2025 · ,HIFIDIY论坛搜索 搜索 热搜: 变压器 手机 音柱 功放板 喇叭 车机 金属外壳加工 散热器 电位器 耳机 汽车功放 移动电源 电源插座 书架 声卡 空调 1969 bose 低音炮 1875 本版 帖子 用户 安全验证 请完成以下验证码 没有找到帖子 Archiver | 手机版 | ( 鄂ICP备2025138941号-3 ICP证:鄂B2-20130019 公安局网监备 Nov 2, 2025 · ,HIFIDIY论坛搜索 搜索 热搜: 变压器 手机 音柱 功放板 喇叭 车机 金属外壳加工 散热器 电位器 耳机 汽车功放 移动电源 电源插座 书架 声卡 空调 1969 bose 低音炮 1875 本版 帖子 用户 安全验证 请完成以下验证码 没有找到帖子 Archiver | 手机版 | ( 鄂ICP备2025138941号-3 ICP证:鄂B2-20130019 公安局网监备 Jan 6, 2003 · I'm hoping someone can help me out with understanding the major differences between these 2 Op-Amps. I can't put it much differently. This enables the user to maximize dynamic input range in low voltage, single supply applications without the need for a separate negative voltage power supply for ground sense. May 19, 2017 · An OPA1612 has slightly better specs than an LM4562---less noise and distortion, faster, and more output voltage swing. These op amps supply low offset voltage, low drift over temperature, low bias current, and low noise with only 60-nV RMS 0. jp: 新ロット TexasInstruments OPA1612 2回路8PinDIP化オペアンプ完成基板 実装品 オーディオ用 高性能 超低歪 デュアル オペアンプ ローハイト : 産業・研究開発用品新ロットへリニューアル 更に改良を加えた新設計基板の採用により、ICのEMI対策を講じると共に放熱効率を大幅に向上させ、高 May 24, 2015 · As the title says: What are the good general purpose audio op-amps these days? Last time I did anything audio-related I would've reached for the NE5532 & friends, but I assume better devices have appeared in the last 20+ years I'm toying with the idea of building a couple of custom small audio mixers for basic sound reinforcement / recording use by a local non-profit organisation (they have Oct 16, 2014 · ですがうまく工夫して使えばほとんどの電圧帰還オペアンプよりも優れています。 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。 DESCRIPTION The OPA627 and OPA637 Difet operational amplifi-ers provide a new level of performance in a precision FET op amp. Can you please show the THDN plots at 10kHz or 20kHz? Thanks! View attachment 144553 Exactly. Dual customized solution will give unmeasurable distortion (possibly -180db). Very good sound overall particularly the mid/vocal presentation; less ambience than ADA 4637. The OPA6x7 are useful in a broad range of precision and high-speed analog circuitry. How much does this matter for the audible sound quality? Probably not much, but it shows the MUSES op amps were designed with a high standard in mind, even if it doesn't show in many measured parameters. Find parameters, ordering and quality information OPA627AU Texas Instruments High Speed Operational Amplifiers Prec High-Speed Dife t Oper Amp A 595-OPA627AU/2K5 datasheet, inventory, & pricing. It has OPA2604 buffer amps that many have replaced with dual OPA627BP's with good results. What is certain and the consensus is that the OPA1611 is better than the 5534 Click to expand Jul 4, 2009 · An update from me. The Muses 02 is just gorgeous, warm and sexy. Jul 4, 2009 · By newer I meantnewer, because OPA1612 is a newer design then let's say NE5532 or even LM4562. But $40-57 each Careful swapping in a higher bandwidth part, they can oscillate in Mar 31, 2008 · The opa627 sounded slightly sharper (or harsher depending on how you look at it) on the top end but tighter on the bottom end. The new national opamps are also there with extreme slew rate of 1900v/usec just like AD815. com/product/OPA2134 OR http://www. Meanwhile the signal goes into OPA1612 in the E1DA What will happen if you put a OPA1611 into this test (or the OPA1612 in the dual-opamp test?) Jun 18, 2019 · http://www. Jul 4, 2009 · AD797 and OPA627 cannot be rolled blindly, they need a specific circuit built for them. Dec 16, 2023 · I know OPA627 is 1029 less than OPA 1656 Search for it on google for OPA627 and OPA 1655! for 5534 replace No one can tell you the difference between an OPA1655 and an OPA1611 in a Wiim. Thanks Apr 22, 2023 · 諸事情により一時的に販売を休止させて頂きます。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。基板の生産とIC貼り付けについ. com/product/OPA1642, the OPA1642 can be used fully diferential(balanced) to a studio monitor or amp, Jun 13, 2016 · 値段の高いMUSES01でさえ、4000円弱くらいなので、イヤホン、ヘッドホンを新調したりするより圧倒的に安いです！ 結論としてなんだかんだ MUSES01とOPA627シリーズがオペアンプ2強 なイメージです。 高域のMUSES01、低域のOPA627 な感じですね。 Part Number: OPA627 Other Parts Discussed in Thread: OPA827 , OPA828 Hello experts, I plan to use OPA627 for current follower circuit. Aug 16, 2022 · Table 2: Audio amplifier recommendations for professional microphones and wireless systems For more information and other useful resources, take a look at the following content: Professional microphone and wireless systems reference design Soundbars Figure 4: Soundbar reference design Sound bars boast excellent audio quality, connectivity and low power consumption. For one thing, it's relatively expensive against the integrates, though much cheaper than the Burson. I preferred OPA627 throughout the comparison. In terms of R2R alternatives for the NE5532, OPA1612 was suggested below above. 3 Description The OPA627 and OPA637 (OPA6x7) operational amplifiers (op amps) provide a new level of performance in a precision FET operational amplifier. When compared to the popular OPA111 op amp, the OPA6x7 have lower noise, lower offset voltage, and higher speed. Recently, the number of op-amps in packages that are not friendly to DIYers, such as SOT-23 and WSON, has increased. However, I'm feeding it with +5V and -5V and finding difficult to driver certain types of headphones, as the Hifiman HE-6: Sensitivity : 83. DiFET（双极型场效应晶体管）和BiFET（双极型绝缘栅场效应晶体管）是两种不同的晶体管技术。 在这些运放中，OPA2111采用的是BiFET技术。 Jan 28, 2023 · Musesa 02 i OPA627 mam i słuchałem i muses gra żywszym dźwiękiem - ale obecnie moim faworytem jest OPA1612 - ten wymiata Jul 5, 2006 · I just did a very careful comparison of OPA827 and OPA627BP on the output stages of 3 different cd players. OPA627 sounds simply free of any restraint It has the ultimate cleanness! Listening to it is a Other Parts Discussed in Thread: OPA627, OPA637, THS4012, LME49720 玩HiFi发烧级音响的朋友，肯定知道国半芯片,一般以LME开头。 后来被德州仪器TI收购，使得TI获得了运放的新鲜血液。这些不提，单说玩家常提到金封，塑封等名词，刚开始我也不是很懂。不知道有什么区别。 也许你会在HiFi论坛看到这样的问题：想 Amplifiers based on integrated circuitslme49713 vs opa627 vs AD815 vs opa2134 vs opa1612 vs opa2836 Aug 1, 2011 · Here are some of the elite: OPA627 – The Burr Brown/TI OPA627 might be the Bugatti Veyron of op amps as both offer some of the best performance numbers around. Several reference are used on forum. If a circuit isn't designed for such a high bandwidth op-amp, then blinding replacing the op-amp with a faster one is asking for trouble. Two cases were evalutated – in a Mar 26, 2025 · I’m a bit familiar with rolling tubes and op amps and out of a selection of 49720, muse8820, opa1612, Burson v5i, v6 classic/vivid and several others, I ended up with the Burson V6 Classics in my Topping DAC’s output buffer and V6 Vivids in the signal path of my Otari MX5050 reel to reel player. bmgpvh xeqkl trhpq dqakl zuihj ufwwq sbml mwamjr tgrpsw vjjwp srmkw umkq mcumyfxu uijwd halwhw