Opa1612 vs 1642 forum

Opa1612 vs 1642 forum. - high levels of DC precision are generally not required by audio customers (audio equipment makers). 8 bucks for a genuine part. Contact Mouser (USA) (800) 346-6873 | Feedback. 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. It appears that the OPA1611/2 have a lower noise voltage, wider bandwidth and higher slew rate than the OPA134 and OPA2134's. TI’s OPA1642 is a Audio op amps. ••• 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 · It's a killer OpAmp, and better suited to non-inverting buffer duties than the OPA1612/2211 Low- and Mid-Frequency Test Signals for Evaluation of Room Modes // Measurements: ESS Hump revisited // Humpify -- apply "ESS hump"-style distortions to audio files Jun 7, 2016 · OPA1612 1612 will sound warmer, thicker, mellower and darker with most headphones and IEMs. Mouser offers inventory, pricing, & datasheets for OPA1612 Series Audio Amplifiers. Custom Input Buffer Board w/: The OPA1611 (single) and OPA1612 (dual) bipolar-input operational amplifiers achieve very low 1. 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 Aug 1, 2024 · OPAs 1642 and 1656 MUCH MUCH better. This configuration is best for use in setups with a source/DAC capable of higher pre-out voltages. 魅族mx4pro运放芯片用的是1612，而xplay 3s用2604，不知道魅族能不能比vivo更屌呢？ 貌似老外们觉得2604比较好有助攻的么 OPA1612 与 OPA2604 对比？ Feb 28, 2021 · The new breed of TI J-Fet opamps offer superior performance to that old soldier the OPA2134. 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). I's latest offering, the OPA1656. They probably used the stock resistors values too, which are too low for the tl072 to work comfortably. 5 7 7. Apr 25, 2024 · Is bipolar opamp like OPA1612 easier affected by EMI due to rectifying effect? If C1 - C6 and C7 - C9 present at the same time, TLE2426 will draw about 25mA current that I think is too much. My favorites at the moment opa1642 and this one opa1656. But I really like the FET's in that position. The OPA1611 (single) and OPA1612 (dual) bipolar-input operational amplifiers achieve very low 1. It could be very interesting to test their performance: - SNR - Bandwish - slew rate-. But that does not say anything about the SQ. More options 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. May 9, 2023 · Which of the two mentioned OP Amps (OPA1612 or OPA1656) is the better one, in a Reviews. 5). The OPA1612 offers rail-to-rail output swing to within 600 mV with a 2 kΩ load, which increases headroom and maximizes dynamic range. Mar 17, 2019 · Rolling opa1642, opa1612, muses8920, 2xopa627bp, lme49720na, opa2134. Of course layout and bypass design matter along with the basic circuit as shown on the schematic, its not just the chip. The idle current of the whole amplifier will drop to about 5 ~ 6mA if I remove C1 - C6 or C7 - C9 either. 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. All of the MM preamps that are out there that use a bipolar input device (LME49710, OPA1612, LT1115, AD797 are just deluding you. 0Vrms. 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. Mar 22, 2023 · 后期的惊喜，OPA1612和1642. Dec 10, 2015 · A fair question! And although I was the product definer and systems lead for this part, I don't get 100% control over the marketing folks But, I can honestly say that when we started working on this part about a year ago, I was very adamant that I didn't want to create a part with excellent specs but terrible sound quality in the real world. 000015% at 1kHz. This is a "WTF were you thinking, Mackie?" for me. Referring to fig 37 from datasheet , I understand that to have unity gain I have to change the R330 to 680. 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. Pin can be left floating or connected to any voltage between (V–) and (V+). 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 Mar 27, 2023 · - Buckeye buffer stage (OPA1612 OP Amp), allowing for Low/Med/High gain settings via toggle switch on the rear. Skip to Main Content (800) 346-6873. May 15, 2022 · Buggle2 Riaa board. NE5532 is a very good amplifier especially for the price ($0. The TI OPA1612 dual operational amplifier benefits from excellent technical characteristics, allowing very good electrical and audio performance. Transients are stronger, both rimshots of snare drum and big-band trumpets. 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. The MM preamp must have a FET input device. While it still has some treble sparkle, It isn't enough to save its sound of complete mudyness and lack of detail. OPA1612到了后，自己先试了试OPA1612+JRC5532，感觉和OPA1642+JRC5532没什么区别，我试了好些碟，也试不出来什么区别；三频几乎没有差别，打分还是一样的，90分水平； OPA1612+OPA1612，这个组合的高频给我非常好的感受，比OPA1642+JRC5532明显更 Jan 6, 2010 · I have an Onix XCD-99 which is basically a Music Hall CD-25. Review Index. OPA1612 is fuller sounding - especially lower midrange but also more dynamic. XLR outs on the 1642. 0Vrms output single ended. I found that OPA1612 was in the ultimate soundplus collection that's why i have change for it. Just did an A/B with 2 opamp buffers on my Hypex NC500 monoblocks, which I normally use with no buffer, as the dac has enough gain to drive the NC500 modules direct. The IV stage was changed so from my DAC I get a 2. Their noise performance with a real MM cartridge (c. OPA1612 could certainly be used here, but it may be overkill in this application since noise performance of this circuit is likely to be dominated by the noise from the FET input stage. Jan 10, 2016 · He talked to me about OPA1611's versus OPA134's as well as the OPA1612's versus OPA2134's. Dual customzied solution will give unmeasurable distortion (possibly -180db). • Wide Supply Range: ±2. The new OPA1622 delivers lowest distortion and noise, high linear output current, and low power, enabling the highest performance for professional and portable audio applications. i expected them to put some The OPA1611 (single) and OPA1612 (dual) bipolar-input operational amplifiers achieve very low 1. The supply voltages are +/-12V and both are capable of supplying up to 1A currents. OPA1611, OPA1612 www. 1642 is nice in that it's a jfet input with very very good linearity which might mask less-than-ideal circuit design. Some people have more recently started using OPA1656, which are very good, although they are a little less authoritative in the bass. 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. The soundstage is the only good part, it's the wider due to the bass boost and upper midrange scoop. The OPA1612-Q1 device is available in a SOIC-8 3. common mode voltage that I've measured on any op amp. 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. Jul 5, 2006 · Standard opamp for that has pretty much become OPA1612. I don't want to have to remember to bring TRS to XLR cables or lose them. The OPA1612-Q1 device offers rail-to-rail output swing to within 600 mV with a 2-kΩ load, which increases headroom and maximizes dynamic range. MUSES8820 is the best, IMHO. If you're comfortable desoldering soic8 opamps, you can consider swapping opamps but I wouldn't suggest it. It's a completely different problem than the MC case (5uH, 5 ohms). 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 The OPA1611 (single) and OPA1612 (dual) bipolar-input operational amplifiers achieve very low 1. 000 (DIY!) tube preamp with tube OPA165x Ultra-Low-Noise, Low-Distortion, FET-Input, Burr-Brown™ Audio Operational Amplifiers 1 Features • Ultra-low noise: – Voltage noise: 2. Mar 17, 2019 · The OPA1641 would be slightly better. Several reference are used on forum. However, I won't swap to an OPA1612 because I am sufficiently happy with the LM4562 performance. Hi Community, TI!!! I would like to upgrade an audio amplifier OPA2134 and the TI site web recommands me to change for a new OPA. 5 ± 10 ± 8 ± 6 ± 4 ± 2 0 2 4 6 8 10 Common-Mode Capacitance (pF) Common-Mode Voltage (V) C004 OPA164x Family Traditional JFET-Input Amplifier Oct 15, 2014 · Texas Instruments' OPA1612 (dual) bipolar-input operational amplifier achieves very low 1. May 25, 2009 · 6 sends on 1604 versus 4 on 1642. Jul 4, 2021 · This looks like a stock implementation of the pcm1794 datasheet output stage. 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. 1-nV/√ Hz noise density with an ultralow distortion of 0. Jan 1, 2019 · Their new Pure Multichannel amplifier is just beautiful! From 7 up to 12 channels of Purifi 1ET400A amps, LT3045/LT3094 regulators, OPA1612 or Sonic Imagery 994 opamps. 000015% at 1 kHz. More options 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. I read on several forum the advantage to use specific AOP for the final stage of DAC or Amplifier. It has the most stable input capacitance vs. We would like to show you a description here but the site won’t allow us. So, it is a different design and chip. alongside with some aliexpress el`cheapos for like 2 buck a piece instead of 7. 1/4" TRS outs on the 1604 vs. My statements were verified: - OPA1611/1612 are optimized for better distortion than the OPA211 (already pretty good). 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. If you need 4 separate monitor mixes + reverb, you''ll have to get clever on the 1642 an use the sub busses. OPA1612-Q1: 1Mb / 31P [Old version datasheet] SoundPlus High-Performance, Bipolar-Input Audio Operational Amplifier Burr-Brown (TI) OPA134_071: 403Kb / 14P: Aug 24, 2012 · i tryed lme49722 opa2134 and opa1612 ,--. 6 mA per Channel package. 5 6 6. 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. 91 mm Nov 19, 2014 · opa1612 与 . I like the OPA1642 due to its MUCH reduced bandwidth compared to the 1656 (11MHz vs, 55 MHz)---thus much less chance of oscillation in vintage circuits. It ensures a very low noise density of 1. 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. Go for the opa1612 given the choice. I suggest the following reference - 994Enh Discret OpAmp SONIC IMAGERY LABS - SPARKOS LABS SS3606 - AOP 1612 - LM4562 4 4. The OPA1612-Q1 device is a dual, SoundPlus, bipolar-input operational amplifierthat achieves achieve very low 1. --lme49722 lme4562 lm4562 opamp is very good sound ,higher ratings than opa2134 -but not as May 23, 2019 · I am designing A DAC analog stage using the OPA1602. Feb 28, 2021 · I should have done my research a bit better because because I overlooked OPA1612 which is purported to have superior performance compared to LM4562. Dec 9, 2019 · Home: RME ADI-2 Pro FS R BE—Neumann KH80 DSP, Arendal Sound 1723 1S Work from Home: JDS Labs Atom—Etymotic ER4SR, AKG K371, Sennheiser HD820 Measurement: Earthworks M30 (Reed R8090)—Earthworks ZDT 1021 — RME ADI-2 Pro FS R BE — REW Aug 22, 2009 · I talked to a TI/B-B applications engineer today. 500mH, 500 ohms DC R) is just terrible. It has OPA2604 buffer amps that many have replaced with dual OPA627BP's with good results. The device is specified from –40°C to • Rail-to-Rail Output +125°C. The OPA169x operational amplifiers achieve a new level of performance for low-power amplifiers with a low 4. Texas Instruments OPA1612 Series Audio Amplifiers are available at Mouser Electronics. 9 nV/√Hz at 10 kHz Dec 15, 2015 · Texas Instruments (TI) introduced the newest addition to the company’s Burr-Brown Audio line, a next generation of the widely adopted OPA1612 audio operational amplifier (op amp). 7 pA/rthz) will multiply with the pickup resistance (varies quite a bit, say typical is 10 kOhm) to become the 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). Mouser offers inventory, pricing, & datasheets for Texas Instruments OPA1612 Series Audio Amplifiers. - Choice is not permanent and can be changed by the customer via internal jumpers at anytime. ADI 825 or any AD requires strict rules for it to operate in due to low PSRR. . . Aug 3, 2019 · Absolutely not. Forum Donor. Joined Jan 1, 2019 Messages 5,266 Likes The OPA1611 (single) and OPA1612 (dual) bipolar-input operational amplifiers achieve very low 1. 5 5 5. 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. If you'd prefer to use a bipolar input op amp, I'd suggest OPA1662 or OPA1602. 25 V to ±18 V Device Information(1) 2 Applications PART NUMBER PACKAGE BODY SIZE (NOM) • Professional Audio Equipment OPA1612-Q1 SOIC (8) 4. Mar 22, 2022 · These are probably among the two highest of the best sounding dual opamps around today. ah so much other untested opa's 1678 still on my list ina1620. BTW, last year I crippled my €4. as these can be unstable and go into oscillation. 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. Of course on summing I want to have the same 2. 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. 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 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 Jul 25, 2016 · As far as opamps -- 1602 and 4562 are going to behave awfully similar. ti. These sound great and outshine many of the other modern high performance audio opamps out there today. 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. The OPA827 for example has superior load drive,much lower distortion and miniscule DC offset. It offers exceptional performance in almost any audio application. Find parameters, ordering and quality information 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. 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。 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. Tested a lot of OP, including LME49720, OPA1612, OPA1642, MUSES8920 and MUSES8820. Part Number: OPA1656 Other Parts Discussed in Thread: OPA2134, OPA2604 The OPA1656 is the industry’s lowest voltage noise high voltage CMOS on the market. Feb 11, 2021 · According to the TI datasheets OPA1612 has less noise than OPA1656. Any futher recommendations? my favs 1642/1656, 1612, lme49720na 2xopa627bp, ••• Part Number: OPA1612 Other Parts Discussed in Thread: OPA2134, , OPA1678. 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. 2-nV/√ Hz noise density and distortion of –127 dB at 1 kHz. Of Even the Voltage noise spectral density curve in the OPA1612 datasheet figure 32 shows lower noise when the source resistance is low. 90 mm × 3. 1 nV/√Hz noise density with an ultra-low distortion of 0. wje kces ldi tpun ryqc zff lnswmh puqda sxy vhq