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Opa1656 vs opa1612 vs opa16
Opa1656 vs opa1612 vs opa16. System: Equitech 1. 1nV/√Hz Noise, Low Power, Precision Operational Amplifier OPA1612 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. I don't care about listening tests or something else, just want to use the technical better one in my amp. ah so much other untested opa's 1678 still on my list ina1620. Since I am not interested in the V6 Vivid Dual that it comes with. i expected them to put some . common mode voltage that I've measured on any op amp. 5 V to 36 V) on 3. 9mA of supply current. Joined 2022. Aol for the OPA2134 with a 600 ohm load has an output swing that is 2. com The TI OPA1612 dual operational amplifier benefits from excellent technical characteristics, allowing very good electrical and audio performance. The OPA1656 immediately raised my attention, plus there was/is a long thread about it on diyaudio. 4 Calculating Voltage Noise at the Output. the differences aren't huge, but big enough to make a change worthwhile. 7 of OPA1612 datasheet) 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。 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. 5). 5 MHz LM4562, 55 MHz OPA2134, 8 MHz A 1 metre cable with polyethylene dielectric has its first resonance at 50 MHz, a 1. --lme49722 lme4562 lm4562 opamp is very good sound ,higher ratings than opa2134 -but not as Nov 26, 2017 · thanks for your tips! i have tested the opa2604 and the LME49720 compared to the ne5532. It has a very good dynamic range and a low level of harmonic distortion. 25V to ±18V or (4. -131 dB THD+N at 1kHz, 600 ohm load, 3. From what I know the OPA1656 is currently the highest-spec audio grade standard opamp that TI offers. OPA1656 sounded worst, Muses 8920 sounded best. 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 Dec 11, 2019 · Normally you'd regularily search in the manufacturers new product listings first for any new interesting products. Member. My favorites at the moment opa1642 and this one opa1656. 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. 5V inside of the positive rail . I too find that the OPA1612 and OPA1642 are fantastic upgrade/replacements in a whole lot of professional and consumer audio gear out there equipped with comparatively outdated opamps. Mar 17, 2019 · The OPA1641 would be slightly better. 1-nV/√Hz as well as an extremely low distortion level of 0. May 23, 2018 · Opa1656 and opa1612 without tweaking have better performance than almost any discrete solution. But I really like the FET's in that position. The OPA169x operational amplifiers achieve a new level of performance for low-power amplifiers with a low 4. I’m going to solder the IC to a soic to dip adapter then plug it into the the amp. 9‑nV/√ Hz voltage noise density and 6‑fA/√ Hz current noise density, allowing for very-low noise performance in a wide variety • audio·phile: a person with love for, affinity towards or obsession with high-quality playback of sound and music. 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. May 9, 2023 · Which of the two mentioned OP Amps (OPA1612 or OPA1656) is the better one, in a scientific point of view. I would recommend OPA2134 or OPA134 and if you have money the OPA627 or OPA637. 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. The FET-input architecture achieves a low 2. The OPA1611 (single) and OPA1612 (dual) bipolar-input operational amplifiers achieve very low 1. NE5532 is a very good amplifier especially for the price ($0. It ensures a very low noise density of 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. For the case of 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, Jul 5, 2006 · SQ was about the same as other ESS-based dacs in that class. 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. 9nV/rtHz broadband voltage noise. tnt-audio. 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. It offers exceptional performance in almost any audio application. Thread starter oldphaser; Start date Jan 10, 2016; oldphaser Chief Journeyman. 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). OPA1611, OPA1612 www. Apr 10, 2019 · I have interested in low ESR Electrolytic Capacitors to power the Opa1612. Now, we run through a hand calculation to find the total noise of a simplified audio Nov 30, 2021 · For example, Aol for the OPA1656 with a 600 ohm load will have a linear output swing that is 1. Mar 17, 2019 · In fact it can even introduce discontinuities into the gm vs Vdif curve. It could sound pretty good, but one could get sound just as good from IC opamp designs. 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). 3V inside of each supply. Dual customzied solution will give unmeasurable distortion (possibly -180db). forami. 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. Are there any other Aug 24, 2012 · i tryed lme49722 opa2134 and opa1612 ,--. 5V to 36V) on 3. 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 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, 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 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. 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. I am planning to replace the NE5532 in my Burson Funk with the OPA1656. The op amp offers a temperature range of -40°C to +125°C and is available in an 8-pin SOIC package. 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 ran OPA1656 ACTIVE SoundPlus™ ultra-low noise and Bipolar-Input Audio Op Amp OPA1611 — 1. 000015% at 1kHz. 4 nV/rthz. It has the most stable input capacitance vs. com In no case did I have too high expectations regarding the sound 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. 8 bucks for a genuine part. Does anybody Apr 5, 2021 · The original amp has the OPA1656 and the other has the OPA1642. 1-nV/√ Hz noise density with an ultralow distortion of 0. This OPA1656 OPA from Texas Instrument offers very good performances for audio use. . OPA1656 Total Noise of OPA1656 vs OPA1612. >100mA output current. alongside with some aliexpress el`cheapos for like 2 buck a piece instead of 7. 5Vrms signal, 80-kHz measurement bandwidth. Dec 6, 2018 · Tone controls? DAC reconstruction filter? The better FET-input op-amps are expensive because they are laser-trimmed and prices can be crazy. It's a killer OpAmp, and better suited to non-inverting buffer duties than the OPA1612/2211 The OPA1656 is the industry’s lowest voltage noise high voltage CMOS on the market. 10 Ohm - 10 kOhm, 2). This feature accommodates the power supply constraints of many types of audio products. ti. Dec 10, 2021 · This is my first time doing anything DIY with audio. 6 fa/rtHz broadband current noise. 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, Mar 17, 2019 · Benefit is lower dc offset and less distortion also high open loop gain also superior stability. 9 mA of supply current to accommodate the power supply constraints of many types of audio products. 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. the ne5532 looks a bit harder, narrower and more direct, the other two a bit more relaxed and Apr 6, 2020 · The OPA2134 is very ordinary, I consider it a side step to the NE5532. I'm with Jim here. 2-nV/√ Hz noise density and distortion of –127 dB at 1 kHz. Taking advantage of a wide power supply range and mounted on a DIP8 bracket, it can replace many other models. These sound great and outshine many of the other modern high performance audio opamps out there today. 000015% at 1 kHz. Composite amplifier is one of the best application with opa1656. Jan 10, 2016 #1. But $40-57 each. Joined Sep 8, 2012 Messages 848. 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 Sep 25, 2019 · The OPA165x operates over a very wide supply range of ±2. Feb 11, 2021 · looks very similar to the eighth image from post #2 of Bel Canto's S300i/S300iu - driven by dual mono Icepower amplifier modules with switch mode power supply - go to Inside the Bel Canto S300i integrated amplifier | Audiokarma Home Audio Stereo Discussion Forums and Bel Canto e. Regarding the tone stack, if there is enough gain in the front-end, the input-referred noise may not be impacted by the resistances. We would like to show you a description here but the site won’t allow us. 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. 1 kOhm - 1 MOhm 4). but the difference between opa2604 and LME49720 is much smaller than the difference between these two compared to the original ne5532. Dear all, aiming to keep THD+N figures constant over the audio frequency range. Is the OPA1656 the correct opamp to use? I heard it was the best so that’s why I picked it. Transients are stronger, both rimshots of snare drum and big-band trumpets. Total Noise of OPA1656 vs OPA1612. 53 MHz gain bandwidth product, 24V/us slew rate. Dec 28, 2017 · There are some things to watch out for when swapping op amps. 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. May 10, 2022 · You don't have to use SA, distortion level obvious on oscilloscope screen. Mar 17, 2019 · A quick snapshot of the OPA1656 performance specs: 2. Also pricing for 1000+ isn't really that expensive for opa1656, opa1602, opa1612. One S300iu integrated amplifier | Stereophile. 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 Other Parts Discussed in Thread: OPA1612, OPA828. Some people have more recently started using OPA1656, which are very good, although they are a little less authoritative in the bass. Standard opamp for that has pretty much become OPA1612. CMRR is not a big issue. 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. Jan 27, 2024 · The OPA1612 has lower noise and distortion than OPA1656. 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 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. Pin can be left floating or connected to any voltage between (V–) and (V+). Mar 17, 2019 · We tried OPA1612, OPA1656, NE5532, and Muses 8920 opamps in Rohm BD34301EKV Evaluation Board (which came with 5532's installed). 9‑nV/√ Hz voltage noise density and 6‑fA/√ Hz current noise density, allowing for very-low noise performance in a wide variety May 15, 2022 · LME49720 vs OPA1612 vs Muses02. The Texas Instruments OPA1656 has a specified temperature range from –40°C to +125°C and is offered in an 8-pin SOIC package. 2022-05-15 10:48 am #1 Jan 10, 2016 · OPA1611 vs OPA134 or OPA1612 vs OPA2134. Feb 28, 2021 · The new breed of TI J-Fet opamps offer superior performance to that old soldier the OPA2134. The OPA1655 and OPA1656 (OPA165x) are Burr-Brown™ op amps designed specifically for audio and industrial applications, where maintaining signal fidelity is crucial. 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. r/audiophile is a subreddit for the pursuit of quality audio reproduction of all forms, budgets, and sizes of speakers. 10 kOhm - 10 MOhm Set 1 produces no visual deviation at all. Sep 27, 2019 · The OPA1656 operates over an ultra-wide supply range of ±2. 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. Mar 17, 2019 · Rolling opa1642, opa1612, muses8920, 2xopa627bp, lme49720na, opa2134. So you'd be "degrading" the performance by going that route (even though both are excellent). IMHO the outcome was mostly decided by how the opamps responded to the RF coming out of the dac chip. It's best use as an alternative to opa1612 when noise is not a big concern. Opa1656 has good phase response at high frequency. 25 V to ±18 V (4. . Now, we run through a hand calculation to find the total noise of a simplified audio 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. 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 Jul 4, 2021 · The article linked below isn't the be-all and end-all on op amps tests, but very informative. The OPA827 for example has superior load drive,much lower distortion and miniscule DC offset. 2V inside the negative rail and 2. He does test the TL072 against some more modern ones, but not the OPA1612 due to there being no DIP version I think. 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. e. Compare the datasheets. 6 mA but I know I’m in the Op amp thread so I don’t want to take the thread off topic. Any futher recommendations? my favs 1642/1656, 1612, lme49720na 2xopa627bp, ••• Mar 17, 2019 · We tried OPA1612, OPA1656, NE5532, and Muses 8920 opamps in Rohm BD34301EKV Evaluation Board (which came with 5532's installed). 3 MHz. Thread starter forami; Start date 2022-05-15 10:48 am; Jump to Latest F. OPA1612 is fuller sounding - especially lower midrange but also more dynamic. com with a TI insider involved. 5 metre cable at 33. 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. PRODUCTION DATA. 100 Ohm - 100 kOhm, 3). Two cases were evalutated – in a 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. 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. 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. Feb 11, 2021 · According to the TI datasheets OPA1612 has less noise than OPA1656. I repeated measurements a few times, using sets of resistors: 1). But that does not say anything about the SQ. He gives strong recommendations for some applications and also caveats about ill-informed op amp rolling.
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