Opa1656 vs opa1612 forum audiophile

Opa1656 vs opa1612 forum audiophile. 9‑nV/√ Hz voltage noise density and 6‑fA/√ Hz current noise density, allowing for very-low noise performance in a wide variety Dec 9, 2019 · Technically speaking, it's really hard to beat opamps like AD797, AD8599, OPA1612, OPA1656, so it might be safer to use one of these over the "exotic" ones, unless swapping opamps is really fun for you and you have enough money to spend on this hobby. opa1612를 받아주기엔 dk799, 아니 포터블 기기의 한계가 있지 않나 하는 생각이 들었습니다. This feature accommodates the power supply constraints of many types of audio products. Jul 5, 2006 · SQ was about the same as other ESS-based dacs in that class. Some people have more recently started using OPA1656, which are very good, although they are a little less authoritative in the bass. 9‑nV/√ Hz voltage noise density and 6‑fA/√ Hz current noise density, allowing for very-low noise performance in a wide variety With that being said, there will not be a huge noise performance difference between OPA1656 (~4nV/rthz) vs OPA1678 (~5nV/rthz) when the thermal noise is already 11. Mar 22, 2022 · OPA1612 (soic on dil adapter board), bi-polar from input to output, again a very good opamp, which to me "sounds more balanced" top to bottom than the LME, it is just as dynamic, but just a little less obvious in the bass leading edge because the mid-range seems a little more fleshed out rich and full bodied, highs are just as good as the LME. Apr 8, 2021 · LEAF Dual 9038Q2M VS Gustard X16 pictures inside Dec 12, 2020 · Yes, Bruno said in the interview OPA1656 was superior, while you mentioned the discussion at ASR where the OPA1612 was said to test better. 9mA of supply current. As per datasheet Fig 7, OPA1656 achieves this pretty well with loads of 2k (or more) @ output voltage 3V(rms) OPA1612 achieves this flatness of THD+N curve , eg in inverting mode G=-1 (Fig. OPA1656 The OPA1655 and OPA1656 (OPA165x) are Burr-Brown™ op amps designed specifically for audio and industrial applications, where maintaining signal fidelity is crucial. Apr 6, 2020 · The OPA2134 is very ordinary, I consider it a side step to the NE5532. Jun 5, 2023 · The OPA1642 is significantly inferior to the OPA1612 in many regards (GPW product, output drive, distortion vs output load, input voltage noise for example). It appears that the Total Noise of OPA1656 vs OPA1612. I've had the Burson V5i, and the V6vivid and I have no space to put a sparkos labs opamp single or dual channel. My main attraction to them is a higher ripple current in the AC to “ power” the board onward as the opa1612 only requires low quiescent current of 3. Oct 12, 2019 · In a recent Bruno Putzeys video interview he shared a preference for the OPA1656 with the Purifi amp. Now they seems to have changed again to opa1612 in many places - maybe a suggestion to try ? I have tried ne5532, opa2604, lm4562 and opa1612 and I prefered LM 4562 in both Aiyima a07 and the tpa3251-based Aiyima a04. Dynamics felt better, bass felt more defined and the upper midrange seems to have more air. Does anybody Other Parts Discussed in Thread: OPA1612, OPA828. But that does not say anything about the SQ. Page: 23 Pages. I suggest the following reference - 994Enh Discret OpAmp SONIC IMAGERY LABS - SPARKOS LABS SS3606 - AOP 1612 - LM4562 Jul 4, 2009 · Here’s a great article comparing opa2156 CMO vs opa1612. Sep 17, 2023 · I was using opa1656 with fosi v3 ever since I got the uni. Is the OPA1656 the correct opamp to use? I heard it was the best so that’s why I picked it. It's best use as an alternative to opa1612 when noise is not a big concern. For the case of チョイラボその8 - Choi LABO - FC2 Mar 21, 2023 · The trade off would be noise vs stability. The Opa1612 is the audio version so they made the specs slightly worse. OPA1642, OPA828, etc. Dear all, aiming to keep THD+N figures constant over the audio frequency range. 8. It is great to have some measurements behind the OP amp selection. Download. 10 kOhm - 10 MOhm Set 1 produces no visual deviation at all. Feb 29, 2016 · In a recent Bruno Putzeys video interview he shared a preference for the OPA1656 with the Purifi amp. 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. Dec 10, 2021 · I am planning to replace the NE5532 in my Burson Funk with the OPA1656. Transients are stronger, both rimshots of snare drum and big-band trumpets. IMHO the outcome was mostly decided by how the opamps responded to the RF coming out of the dac chip. He does test the TL072 against some more modern ones, but not the OPA1612 due to there being no DIP version I think. Are there any other Sep 14, 2021 · 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). . The Class D Purifi has rolled off treble and forward midrange that is its strong signature (by comparison, it sounds neutral/normal on its own when there is nothing to compare). Apr 25, 2024 · Part Number: OPA1642 Other Parts Discussed in Thread: TLE2426, , OPA1656, JFE150, JFE2140, OPA1612, LME49720, OPA891 Dear TI E2E support, Hi there, Our team made a prototype of a phono-stage amplifier (pic. Transparency got way better. Jan 27, 2024 · The OPA1612 has lower noise and distortion than OPA1656. Aug 3, 2024 #201 Buckeye Amps said: Sticking with the OPA1656. Part Number: OPA1612 Other Parts Discussed in Thread: OPA1622, OPA1688 Hello, I am considering the OPA1612 as a headphone driver replacement for JRC2114. It's a virtually unknown chip as when you search on Digi-Key it doesn't come up as soundplus. Regarding the tone stack, if there is enough gain in the front-end, the input-referred noise may not be impacted by the resistances. 5). My OP1656 OpAmp Review. i expected them to put some Jun 27, 2023 · View Classified 7-channel Apollon 1ET400A - 230V EU Hi all, Selling my 7-channel Apollon Purifi 1ET400A (230V) in mint condition. ) He talked to me about OPA1611's versus OPA134's as well as the OPA1612's versus OPA2134's. Tried putting in opa1612 today. Mar 17, 2019 · We tried OPA1612, OPA1656, NE5532, and Muses 8920 opamps in Rohm BD34301EKV Evaluation Board (which came with 5532's installed). Part #: OPA1656. 000 (DIY!) tube preamp with tube Apr 10, 2019 · I have interested in low ESR Electrolytic Capacitors to power the Opa1612. OPA1612 is a great amplifier, however, it is bipolar (input type) and when used immediately at the front-end of a guitar input, the input current noise (1. 8 bucks for a genuine part. The output swing for Aol should be considered as it is different between the two devices. Jan 21, 2022 · You have answered another one of my questions before I ask - input impedance - I was reading earlier about OPA1656 vs OPA1612, and bipolar vs FET. The NE5532 is perfectly fine. Dec 30, 2023 · Part Number: OPA1612 Other Parts Discussed in Thread: OPA1656 I'm up to, to design a 3rd or 4th order 20 Hz high pass filter with ultra low distortion. BTW, last year I crippled my €4. May 23, 2018 · Opa1656 and opa1612 without tweaking have better performance than almost any discrete solution. who builds large PA speaker systems. Jun 5, 2023 · After working with some OPA1612 on my recent Topping PA5 D01 Module replacement project (at ASR), a friend sent me a few OPA1612 opamps he ordered when they were in stock since i couldnt get them anywhere. Standard opamp for that has pretty much become OPA1612. It'll struggle a bit with 33 Ω load, though. Currently, I require opamps in the DIP package. The Texas Instruments OPA1656 has a specified temperature range from –40°C to +125°C and is offered in an 8-pin SOIC package. 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, low-noise 36-V JFET precision operational The OPA1656 is the industry’s lowest voltage noise high voltage CMOS on the market. It has a very good dynamic range and a low level of harmonic distortion. Other cheap ones on my radar - OPA2134PA, OPA1612, LM4562NA. Now, we run through a hand calculation to find the total noise of a simplified audio Mar 5, 2018 · I read on several forum the advantage to use specific AOP for the final stage of DAC or Amplifier. Bought ~2 years ago originally with the OPA1612 and WBT 0703 CU binding posts. OPA1656 1/2 OPA1656 Input Output Pad Product Folder Order Now Technical Documents Tools & Software Support & Community 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. Compare the datasheets. 5 V to 36 V) on 3. Description: Ultra-low-noise, low-distortion, FET-input, Burr-Brown audio operational amplifier. Joined Nov 8, 2018 Messages 173 Likes 415. 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. Sent back ~10 months ago for upgrade to OPA1656, change of gains and servicing. 1 is now ready with OPA1656 in DIP8 socket. 1F X7R on the backside with the shortest possible lead length. 1 kOhm - 1 MOhm 4). 5 MHz LM4562, 55 MHz OPA2134, 8 MHz A 1 metre cable with polyethylene dielectric has its first resonance at 50 MHz, a 1. the ne5532 looks a bit harder, narrower and more direct, the other two a bit more relaxed and May 15, 2022 · Buggle2 Riaa board. Taking advantage of a wide power supply range and mounted on a DIP8 bracket, it can replace many other models. Good op-amps try not to add their own character to the sound, and the V5i sticks to that. the differences aren't huge, but big enough to make a change worthwhile. Both (I believe have Fet-inputs) There’s also 2189 CMOS audio op amp has impressive specs of an impressive was designed for MUX friendly DACs and multichannel dacs! Nov 26, 2017 · thanks for your tips! i have tested the opa2604 and the LME49720 compared to the ne5532. 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. 3e Audio Jul 4, 2009 · Level of transparency and detail retrieval are better compared to stock OPA1612 and few others I tried from LME/AD/OPA series. alongside with some aliexpress el`cheapos for like 2 buck a piece instead of 7. 7 of OPA1612 datasheet) Jul 4, 2021 · The article linked below isn't the be-all and end-all on op amps tests, but very informative. 5 metre cable at 33. (OPA1612 vs OPA1656) before production Sep 27, 2019 · The OPA1656 operates over an ultra-wide supply range of ±2. tnt-audio. ) and MOSFET(i. Dec 6, 2018 · « Reply #1 on: December 06, 2018, 06:00:58 pm » It's not that simple, you have to consider what the op-amp is seeing and doing. I looked at the Slew Rate as my main Jan 10, 2016 · I talked yesterday to my buddy Greg B. The gain May 10, 2022 · You don't have to use SA, distortion level obvious on oscilloscope screen. But I would still like to see the OPA1656 tested. Feb 11, 2021 · As Mark pointed out OPA1612 is a terrific sounding opamp and if you have problems with its bold mighty extreme low bass performance or with the extreme high resolution and unfiltered highs you can use other new opamps with a more gentle sound like OPA2209, OPA2189 etc. Since Bruno's MO is to test rather than rely completely on subjective impressions, I wondered whether he had done some different tests in which the OPA1656 excelled. I prefered the sound of my DAC with the OPA1656's hands down even over the discrete op-amps. I’m going to solder the IC to a soic to dip adapter then plug it into the the amp. In note slyt630. Tested a lot of OP, including LME49720, OPA1612, OPA1642, MUSES8920 and MUSES8820. I think it's a matter of circuit design and implementation. 9 v/µSec for a OPA1656 at isn't really that expensive for opa1656, opa1602, opa1612. Mar 17, 2019 · Benefit is lower dc offset and less distortion also high open loop gain also superior stability. I'm waiting for OPA1656 and ADA4896 to try at I/V stage. Apr 11, 2024 #381 Hi Amigos share a test between OPA1612 and OPA1656 . ). Best Regards, Chris Featherstone Sep 25, 2019 · The OPA165x operates over a very wide supply range of ±2. The low voltage noise combined with the low current noise make this device great for low and high impedance applications such as a high gain microphone pre-amplifier. OPA1656 - Better imaging / separation of instruments. Our primary goal is insightful discussion of home audio equipment, sources, music, and concepts. Lme49720 provides same best performance as opa1656 and opa1612. MUSES8820 is the best, IMHO. For example, Aol for the OPA1656 with a 600 ohm load will have a linear output swing that is 1. ••• Mar 14, 2010 · Tubey, better late than never - I just replaced all NE5532 amps in Benchmark DAC1 with OPA1612 and play it so far for few hours. I did an A/B comparison to LME47920 (metal cans), burson V5i, V6 and also the Sparkos Pro discrete op-amps on one of my DAC's. The FET-input architecture achieves a low 2. In all, I will say the changes are noticeable, but not earth shattering. I repeated measurements a few times, using sets of resistors: 1). 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 OPA1652 and OPA1688) hunting for sources of input capacitance variation. com with a TI insider involved. Composite amplifier is one of the best application with opa1656. May 21, 2020 · 이전에 사용했었던 opa1656에 비해 큰 개선까진 없었습니다. I am planning to replace the NE5532 in my Burson Funk with the OPA1656. But this is audio science forum. pdf (sorry, pasting the address makes a huge link) you use a ~50 ohm isolation resistor. My understand if noise isn’t a problem the opa1656 is great alternative to the opa1612. Mar 28, 2022 · The OPA1656 can deliver 100 mA of output current, so it should be able to drive a headphone load. You retrieve so much details and trebble extension but could be a bit fatiguing. PRODUCTION DATA. Nov 28, 2022 · Part Number: OPA1656 Other Parts Discussed in Thread: OPA192 , , OPA551 , OPA547 , OPA593 Dear members: For a measuring circuit I need an operational with output TI E2E support forums Search Total Noise of OPA1656 vs OPA1612. Mar 17, 2019 · OPA1656 rolling I tried in all cases to bypass the rails with a 0. 7 pA/rthz) will multiply with the pickup resistance (varies quite a bit, say typical is 10 kOhm) to become the Mar 17, 2019 · blue spectrum - 2 x 8 parallel OPA1642 , green spectrum - 2 x 2 parallel OPA1642 orange spectrum - 2 x 8 parallel OPA1656 , brown spectrum - 2 x 2 parallel OPA1656 Based on these measurements I expect the noise of a single OPA1656 to be 39nV/rtHz at 10Hz. Dual customzied solution will give unmeasurable distortion (possibly -180db). 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. Soundstage and placement felt more solid. common mode voltage that I've measured on any op amp. Opa1656 has good phase response at high frequency. A TSSOP8 to DIP8 adapter should work. For example the OPA1678 has a much higher gain-bandwidth product than TL072 and different output impedance, which means that the criteria for it being stable (i. CMRR is not a big issue. (NOTE: We once owned a recording studio together back in the late 1970's through the early 1980's. I used 10 or 12 in my preamp rolling project - never a problem with Mar 17, 2019 · To start, OPA1656 is definitely not a replacement for OPA1622, the two parts were designed for with very different applications in mind. com Jan 17, 2022 · It is hard to tell apart AHB2 vs 333 but easy to identify the Class D Purifi once we have heard all three on the same or specific songs. Description: OPA165x Ultra-Low-Noise, Low-Distortion, FET-Input, Burr-Brown™ Audio Operational Application Report Understanding Op Amp Noise in Audio Circuits Tyler Noyes, Tamara Alani ABSTRACT One of the greatest design challenges when building a high fidelity audio circuit is how to reduce the total system The OPA1655 and OPA1656 (OPA165x) are Burr-Brown™ op amps designed specifically for audio and industrial applications, where maintaining signal fidelity is crucial. It has the most stable input capacitance vs. (or the 2156) The opamp has good phase margin and seems quite tolerant of sub-optimal layout. opa1655 , opa1656 SBOS901C – MARCH 2019 – REVISED SEPTEMBER 2022 An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications, The different players sounded different. Ha ha it's funny because I'm a wide and far reached detailed and accurate fanboy and some people find too many details to be annoying. Mar 9, 2023 · 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 is higher than DO300 with less op-amps. OPA1656, OPA1678, etc. 4 Calculating Voltage Noise at the Output. It offers exceptional performance in almost any audio application. Feb 11, 2021 · 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. This was interesting as both the March Audio and the Buckeye Purifi amps were being built with the OPA1612. OPA1612 is fuller sounding - especially lower midrange but also more dynamic. I ended up staying with this one. 6 mA but I know I’m in the Op amp thread so I don’t want to take the thread off topic. Review. 10 Ohm - 10 kOhm, 2). Psychic contributors here now . I had no oscillations or instability with the OPA1656. 다이나믹스나 저음 깊이감 측면에서 거의 비슷하다는 느낌을 받았습니다. Low output current would mean the transimpedance gain of the I/V circuit will be high, and the input current noise of the op amp will be a significant contributor. It could sound pretty good, but one could get sound just as good from IC opamp designs. Cimarron has the 1641 in SOIC-8 OPA1641AIDR Texas Instruments - Cimarron Technology They can also mount SOIC-8 on a DIP-8 adapter. File Size: 611Kbytes. 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 current going for May 2, 2020 · New Purifi Buffer in V2. I also refurbish large format recording consoles. r/audiophile is a subreddit for the pursuit of quality audio reproduction of all forms, budgets, and sizes of speakers. 100 Ohm - 100 kOhm, 3). So you'd be "degrading" the performance by going that route (even though both are excellent). The op amp offers a temperature range of -40°C to +125°C and is available in an 8-pin SOIC package. I use two OPA1656 in parallel in the HP-2. Nov 20, 2020 · Part Number: OPA1656 Lets start over with the right part number in the question Reviewing this device for some audio work, the front page noise plot is ok TI E2E support forums Search Frequency (Hz) Voltage Noise Density (nV/ Hz) 1 10 100 1000 10 100 1k 10k 100k OPA1 Electret Microphone Microphone Cable + ± 5 V OPA1671 Output 10 µF 10 µF Jul 4, 2009 · The Opa1656 has a much wider and better soundstage. Feb 11, 2021 · According to the TI datasheets OPA1612 has less noise than OPA1656. Below, I have highlighted the components that could be adjusted if this the issue. OPA1611, OPA1612 www. 25 V to ±18 V (4. OPA1656 sounded worst, Muses 8920 sounded best. OPA1622 was targeted specifically for headphone applications, while OPA1656 is a more general purpose device meant to address analog signal processing in line level audio circuits. Joined Dec 21, 2020 Messages 1,924 Likes 2,847. - Page 2 Sep 14, 2021 · The LM4562 is an exception, but otherwise it are the fast op-amps that JRA has trouble with: Misbehaving: OPA1656, gain-bandwidth product 53 MHz LME49990, 110 MHz OPA1612, 40 MHz Behaving well: OPA2604, 20 MHz OPA627, 16 MHz OPA2107, 4. This is just a theory. Mar 17, 2019 · I purchased 10 OPA1656's. SOIC-8 to 8-pin DIP This OPA1656 OPA from Texas Instrument offers very good performances for audio use. 3 MHz. but the difference between opa2604 and LME49720 is much smaller than the difference between these two compared to the original ne5532. opa1655 , opa1656 SBOS901C – MARCH 2019 – REVISED SEPTEMBER 2022 An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications, Nov 30, 2021 · Stability should be considered especially with the wider bandwidth of the OPA1656. not going into high frequency oscillation) are different and just swapping ICs may cause problems -- you might need to add some compensation for the OPA1678, depending on Dec 7, 2023 · Forum Donor. Aol Sep 6, 2023 · I was using opa1656 with fosi v3 ever since I got the uni. I don't care about listening tests or something else, just want to use the technical better one in my amp. NE5532 is a very good amplifier especially for the price ($0. File Size: 3MbKbytes. Great table. Apr 8, 2021 · I tried OPA1622, OPA627 and OPA1612 at I/V stage and OPA1612 is clearly the best to my ears. Mar 17, 2019 · The Vendor's Bazaar forum is for commercial offers and transactions. 5V to 36V) on 3. Note that while the OPA1656 is unity gain stable, it does have an internal compensation circuit that causes a phase wobble in the 1-10 MHz region. 3V inside of each supply. Several reference are used on forum. 4 nV/rthz. Apr 30, 2021 · Normally you'd regularily search in the manufacturers new product listings first for any new interesting products. Jul 4, 2009 · The Opamp thread | Page 439 | Headphone Reviews and Feb 11, 2021 · I think the problem I'm seeing with the OPA2156, and to a lesser extent the OPA1656 is that the 1/f knee for the noise is much higher than for the OPA1612 and OPA1642. Mar 17, 2019 · For a DAC chip with a low output current, I would suggest op amps with FET type inputs, either JFETs or CMOS. 1/f corners: OPA1612 ---- 10 Hz OPA1642 ---- 20 Hz OPA1656 ---- 1 kHz OPA2162 ---- 1 kHz It also looks like the OPA1642 and OPA2162 are not happy driving 600 ohms, but the Hi Ervin, Yes those devices are very popular, unfortunately I don't have any way to know for sure when they are back in stock. 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. I would have no problem staying with them, but I like tinkering. He gives strong recommendations for some applications and also caveats about ill-informed op amp rolling. Pin can be left floating or connected to any voltage between (V–) and (V+). 1641 is one of their many options. If you AS the input stage of OPA1612 and INA1620 are constructed with the bipolar junction transistor (BJT), the input bias current and input current noise with BJT input are generally much higher than JFET (i. Mar 17, 2019 · Yes, I think I will just use the old DIP PCB instead of the SOIC PCB. ti. Since I am not interested in the V6 Vivid Dual that it comes with. May 7, 2021 · the Honest Audiophile Aug 3, 2024 · Forum Donor. The OPA1656 immediately raised my attention, plus there was/is a long thread about it on diyaudio. It's a killer OpAmp, and better suited to non-inverting buffer duties than the OPA1612/2211 Dec 10, 2021 · This is my first time doing anything DIY with audio. My first set of separate OpAmps, ushering my foray into the brave new world of OpAmmetryLoL Dry, crisp, analytical and non-intrusive (as compared to the bold NE5532) is what I would describe this opamp as. I felt a great improvement overall. OPA627 is really bass forward but you lose details, clarity and energy. Mar 17, 2019 · The OPA1641 would be slightly better. 25V to ±18V or (4. It could be very interesting to test their performance: - SNR - Bandwish - slew rate-. One difference between the 1612 vs 1656 is the 1656 has higher output current availability. In the meantime we will wait for the customers feedback on the component values in order to check the stability of each op amp below using the OPA1656. Application Report Understanding Op Amp Noise in Audio Circuits Tyler Noyes, Tamara Alani ABSTRACT One of the greatest design challenges when building a high fidelity audio circuit is how to reduce the total system Application Report Understanding Op Amp Noise in Audio Circuits Tyler Noyes, Tamara Alani ABSTRACT One of the greatest design challenges when building a high fidelity audio circuit is how to reduce the total system Application Report Understanding Op Amp Noise in Audio Circuits Tyler Noyes, Tamara Alani ABSTRACT One of the greatest design challenges when building a high fidelity audio circuit is how to reduce the total system Application Report Understanding Op Amp Noise in Audio Circuits Tyler Noyes, Tamara Alani ABSTRACT One of the greatest design challenges when building a high fidelity audio circuit is how to reduce the total system Application Report Understanding Op Amp Noise in Audio Circuits Tyler Noyes, Tamara Alani ABSTRACT One of the greatest design challenges when building a high fidelity audio circuit is how to reduce the total system Dec 28, 2018 · I would like to see the OPA1656, a burr brown sound plus chip. Other Parts Discussed in Thread: OPA1612, OPA1642, RC4136 I use these amplifiers for pro audio. 9 mA of supply current to accommodate the power supply constraints of many types of audio products. 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. May 9, 2023 · Which of the two mentioned OP Amps (OPA1612 or OPA1656) is the better one, in a scientific point of view. Page: 42 Pages. The idea of this group buy is to propose a full pack @fair price for a brand new Purifi Buffer : SPEC : - THD: 0,00026% @ Vin 2,5 V RMS - GAIN: 14 dB - BANDWIDTH: 2 Hz - 150 kHz - SLEW RATE: 24 V/uS - CMRR: > 100 dB @ 60 Hz - DYNAMIC RANGE: 127 dB - INPUT IMPEDANCE: 47 Kohm Feb 6, 2018 · We already tried try opa1656 opa1612 lme49720 njm4585 etc. e. Now, we run through a hand calculation to find the total noise of a simplified audio Feb 28, 2021 · The best sounding op amps for audio work. Dec 28, 2017 · There are some things to watch out for when swapping op amps. I prefer the opa2211 over the opa1612 (same chip but with less better specs). wjyy ojca axyrite uqyifi hpgnhdcm yzfy fpl snxskc zmgno dliv