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Opa1612 vs opa1656 reddit
Opa1612 vs opa1656 reddit. File Size: 611Kbytes. The OPA827 for example has superior load drive,much lower distortion and miniscule DC offset. Thread starter forami; Start date 2022-05-15 10:48 am; Facebook Twitter Reddit Pinterest Tumblr WhatsApp Email Share Link. Feb 11, 2021 · According to the TI datasheets OPA1612 has less noise than OPA1656. May 9, 2023 · Which of the two mentioned OP Amps (OPA1612 or OPA1656) is the better one, in a scientific point of view. 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. I repeated measurements a few times, using sets of resistors: 1). I prefer the opa2211 over the opa1612 (same chip but with less better specs). Mar 17, 2019 · Benefit is lower dc offset and less distortion also high open loop gain also superior stability. Transients are stronger, both rimshots of snare drum and big-band trumpets. 000015% at 1 kHz. 4nV/rtHz both flat. 1-nV/√ Hz noise density with an ultralow distortion of 0. I may try to find a pair of OPA1656. It has a very good dynamic range and a low level of harmonic distortion. Sep 27, 2019 · The OPA1656 operates over an ultra-wide supply range of ±2. He does test the TL072 against some more modern ones, but not the OPA1612 due to there being no DIP version I think. This feature accommodates the power supply constraints of many types of audio products. Description: OPA165x Ultra-Low-Noise, Low-Distortion, FET-Input, Burr-Brown™ Audio Operational 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, Apr 5, 2021 · The original amp has the OPA1656 and the other has the OPA1642. 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, 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 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? Facebook Reddit May 15, 2022 · LME49720 vs OPA1612 vs Muses02. 9‑nV/√ Hz voltage noise density and 6‑fA/√ Hz current noise density, allowing for very-low noise performance in a wide variety Apr 10, 2019 · I have interested in low ESR Electrolytic Capacitors to power the Opa1612. 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. The knee in the OPA1656 noise curve is higher because the broadband noise of the OPA1656 is lower (2. ••• Mar 17, 2019 · The OPA1641 would be slightly better. I's latest offering, the OPA1656. 1F X7R on the backside with the shortest possible lead length. Feb 28, 2021 · The new breed of TI J-Fet opamps offer superior performance to that old soldier the OPA2134. Would it also be possible to publish Watts used (at the outlet) while idle before the 10 minute energy reduction window kicks in? Jul 23, 2022 · 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。 Other Parts Discussed in Thread: OPA1612, OPA1642, RC4136 I use these amplifiers for pro audio. Mar 17, 2019 · If you pick a point on the 1/f portion of the noise spectral density curve you can see that the two parts are essentially identical. 10 Ohm - 10 kOhm, 2). 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. 8nV/rtHz). 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). OPA1656 sounded worst, Muses 8920 sounded best. OPA1656 Jan 27, 2024 · OPA1656 instead of OPA1612 by thuanth » January 27th, 2024, 2:57 pm I'm thinking of building a couple of a24 boards and want to try T. Nov 30, 2021 · OPA2134: OPA2134 VS OPA1656. I've had the Burson V5i, and the V6vivid and I have no space to put a sparkos labs opamp single or dual channel. Tried putting in opa1612 today. 9mA of supply current. Composite amplifier is one of the best application with opa1656. Home Mar 17, 2019 · Rolling opa1642, opa1612, muses8920, 2xopa627bp, lme49720na, opa2134. The Opa1612 is the audio version so they made the specs slightly worse. Currently, I require opamps in the DIP package. Aug 3, 2024 · It's really nice Buckeye has the gear on hand to make these kinds of judgment calls (OPA1612 vs OPA1656) before production. However, there really will be very little difference between it and other high performance opamps. Dec 11, 2019 · Normally you'd regularily search in the manufacturers new product listings first for any new interesting products. Is the difference in imaging clearly noticeable or just very subtle? I've been using mostly LM4562, except when I need a JFET opamp (high impedance inputs for example). 9nV/rtHz vs. 5 V to 36 V) on 3. 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. alongside with some aliexpress el`cheapos for like 2 buck a piece instead of 7. (or the 2156) The opamp has good phase margin and seems quite tolerant of sub-optimal layout. Mar 17, 2019 · OPA1656 is less noisy than the OPA827, 2. May 10, 2022 · You don't have to use SA, distortion level obvious on oscilloscope screen. 5). 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. Jan 3, 2023 · An update from me. common mode voltage that I've measured on any op amp. 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. 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. NE5532 is a very good amplifier especially for the price ($0. It's best use as an alternative to opa1612 when noise is not a big concern. Eric Mo Intellectual 775 points Part Number: OPA2134 Other Parts Discussed in Thread: OPA1656, OPA134. 1 nV/√Hz noise density with an ultra-low distortion of 0. Given these characteristics, there is a solid use case for my bedtime music sound profile (which can take quite few hours of listening each night)! 1656 is in my newly designated relaxation & sleeping tube preamp which I can just swap in anytime. The OPA1655 and OPA1656 (OPA165x) are Burr-Brown™ op amps designed specifically for audio and industrial applications, where maintaining signal fidelity is crucial. 3 MHz. 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. I used 10 or 12 in my preamp rolling project - never a problem with System: Equitech 1. Now, we run through a hand calculation to find the total noise of a simplified audio Jul 5, 2006 · SQ was about the same as other ESS-based dacs in that class. I don't care about listening tests or something else, just want to use the technical better one in my amp. 10 kOhm - 10 MOhm Set 1 produces no visual deviation at all. The OPA1612 offers rail-to-rail output swing to within 600 mV with a 2 kΩ load, which increases headroom and maximizes dynamic range. CMRR is not a big issue. Page: 42 Pages. Opa1656 has good phase response at high frequency. PRODUCTION DATA. The op amp offers a temperature range of -40°C to +125°C and is available in an 8-pin SOIC package. Standard opamp for that has pretty much become OPA1612. 8 bucks for a genuine part. Download. com with a TI insider involved. I had no oscillations or instability with the OPA1656. Mar 17, 2019 · We tried OPA1612, OPA1656, NE5532, and Muses 8920 opamps in Rohm BD34301EKV Evaluation Board (which came with 5532's installed). It appears that the OPA1611/2 have a lower noise voltage, wider bandwidth and higher slew rate than the OPA134 and OPA2134's. For example, at 10Hz both parts are approximately 35nV/rtHz. Sep 25, 2019 · The OPA165x operates over a very wide supply range of ±2. 5 metre cable at 33. It could sound pretty good, but one could get sound just as good from IC opamp designs. 5V to 36V) on 3. 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 OPA1642 is “one step down” but still very highly rated, and it is JFET-input which should give a low enough DC-offset to be used directly in this kind of application. It has the most stable input capacitance vs. File Size: 3MbKbytes. 0:00 OPA1656(EQ) OPA2211( voltage follower)1:56 OPA2211 OPA1656オペアンプ回路のノイズ特性として、信号源の抵抗が大きい場合は、FET入力タイプが推奨されると Mar 17, 2019 · OPA1656 rolling I tried in all cases to bypass the rails with a 0. 6 mA but I know I’m in the Op amp thread so I don’t want to take the thread off topic. i expected them to put some May 19, 2017 · 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 really doesn't give much 20 kHz added safe composite loop Jul 4, 2009 · The Opa1656 has a much wider and better soundstage. He gives strong recommendations for some applications and also caveats about ill-informed op amp rolling. Hi Team, My customer wants to 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. I felt a great improvement overall. 1nV/√Hz Noise, Low Power, Precision Operational Amplifier OPA1612 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, Dec 28, 2018 · I would like to see the OPA1656, a burr brown sound plus chip. Two cases were evalutated – in a This OPA1656 OPA from Texas Instrument offers very good performances for audio use. Sep 6, 2023 · I was using opa1656 with fosi v3 ever since I got the uni. 1 kOhm - 1 MOhm 4). Apr 8, 2021 · So there is a huge possibility of combinations) But I found my happiness as follows: - 5 X OPA1612 (Bi polar OP amps work generally well with DACs) - 2 X OPA1656 (They are CMOS op amps but I really love their signature, very natural with a flat response and great soundstage). 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 OPA1655 is the single channel version of the OPA1656. Taking advantage of a wide power supply range and mounted on a DIP8 bracket, it can replace many other models. Jul 4, 2009 · Marketing 101 by having one of the engineers on the diy threads because it creates interest (especially from spec crazy diy-ers who “need” the lastest and best specs and use “word of mouth” via the audiophile threads to push cost up by popular demand) They do outsource them to official distributors ie Mouser, Digi-Key but you have to buy them in bulk (we’re talking 100s to 1000s) and OPA1656 ACTIVE SoundPlus™ ultra-low noise and Bipolar-Input Audio Op Amp OPA1611 — 1. It outperforms most other opamps, very low noise & distortion, doesn't color the sound whatsoever. ah so much other untested opa's 1678 still on my list ina1620. It occurred to me that a more modern & higher performing part must exist at a lower price - a win-win scenario if ever there was one. 5RQ Balanced Power - Tascam CD200 - Oppo 93 - Auvio HD Radio Tuner- MiniDSP OpenDRC-DI DSP, 2x4HD - AcourateDRC - UMIK-1 - ECM8000 - REW - Behringer DEQ2496 - Behringer UMC202HD and Focusrite 4Pre USB - Benchmark DAC2 HGC - Krell KCT pre and FPB 350mcx monoblocks - Sennheiser HD650 - MartinLogan reQuest 15" x 48" electrostatic hybrid with 12" sealed woofer 180Hz cross . Transparency got way better. Any futher recommendations? my favs 1642/1656, 1612, lme49720na 2xopa627bp, ••• The OPA1656 is the industry’s lowest voltage noise high voltage CMOS on the market. From what I know the OPA1656 is currently the highest-spec audio grade standard opamp that TI offers. Mar 17, 2019 · The OPA1641 would be slightly better. OPA1612 is very low noise but have a rise in distortion when driving 600 ohm as voltage 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. Total Noise of OPA1656 vs OPA1612. But that does not say anything about the SQ. 9 mA of supply current to accommodate the power supply constraints of many types of audio products. OPA1612 is fuller sounding - especially lower midrange but also more dynamic. 9nV/rtHz as opposed to 3. Soundstage and placement felt more solid. 4 Calculating Voltage Noise at the Output. The FET-input architecture achieves a low 2. Jan 10, 2016 · He talked to me about OPA1611's versus OPA134's as well as the OPA1612's versus OPA2134's. IMHO the outcome was mostly decided by how the opamps responded to the RF coming out of the dac chip. The Texas Instruments OPA1656 has a specified temperature range from –40°C to +125°C and is offered in an 8-pin SOIC package. 25 V to ±18 V (4. Description: Ultra-low-noise, low-distortion, FET-input, Burr-Brown audio operational amplifier. Page: 23 Pages. The OPA1656 immediately raised my attention, plus there was/is a long thread about it on diyaudio. It offers exceptional performance in almost any audio application. Dec 6, 2018 · This question is triggered by a repair I recently did where the originals, while still available, were stupid expensive. It's a virtually unknown chip as when you search on Digi-Key it doesn't come up as soundplus. 9‑nV/√ Hz voltage noise density and 6‑fA/√ Hz current noise density, allowing for very-low noise performance in a wide variety Mar 17, 2019 · We tried OPA1612, OPA1656, NE5532, and Muses 8920 opamps in Rohm BD34301EKV Evaluation Board (which came with 5532's installed). Some people have more recently started using OPA1656, which are very good, although they are a little less authoritative in the bass. Dual customzied solution will give unmeasurable distortion (possibly -180db). I used though the better TIs in output stages of middle class DACs as these benefitted from a more round /warm presentation with less details, as that masked their weaknesses and in fact We would like to show you a description here but the site won’t allow us. Dynamics felt better, bass felt more defined and the upper midrange seems to have more air. 25V to ±18V or (4. 100 Ohm - 100 kOhm, 3). 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. But I would still like to see the OPA1656 tested. The OPA1611 (single) and OPA1612 (dual) bipolar-input operational amplifiers achieve very low 1. I also refurbish large format recording consoles. It is sooo tooo solid May 23, 2018 · Opa1656 and opa1612 without tweaking have better performance than almost any discrete solution. . Close to zero DC mv at its output would enable removal of the dreaded electrolytic coupling caps which will definitely lower colouration and improve sound quality. My favorites at the moment opa1642 and this one opa1656. But I really like the FET's in that position. Mar 17, 2019 · Here is a copy paste of the result for OPA1656 OPA1656 In the past I have to say I prefered widely the AD precise sound vs the softer traditional TI sound. For the case of 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. Part #: OPA1656. It's a killer OpAmp, and better suited to non-inverting buffer duties than the OPA1612/2211 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). Jul 4, 2021 · The article linked below isn't the be-all and end-all on op amps tests, but very informative. Oct 15, 2014 · Texas Instruments' OPA1612 (dual) bipolar-input operational amplifier achieves very low 1. I have settled on 4x OPA1656 in my Burson headphone amp and 4x OPA1655 in my Ayon DAC. 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.
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