The lmes should work well in the eq stages but i would install machine sockets and compare the noise of the lme vs. Opa2604 more detailed than either of the two but slightly cold. Opa2604 dual fetinput, low distortion operational amplifier. Dac2 dx to the pico dac because after writing the pico vs gamma2 comparison, it seems clear to me that the pico has a very different sound signature thats both very warm and dark, so itll be a choice of sound preference. By using the dual opa2604 and four resistors one can economically drive a 2. Audio opamps, fact, no myths and thd measurement results table. Opa1602opa1604 soundplus operational amplifiers ti mouser. Opa2604ap texas instruments integrated circuits ics. Texas instruments opa164xopa164x q1 soundplus jfetinput, ultralow distortion, lownoise op amps are fully specified for audio applications. Ne5534d ne5534, sa5534, se5534, ne5534a, sa5534a, se5534a single low noise operational amplifier the nesase55345534a are single highperformance low noise operational amplifiers. Texas instruments opa1612 dual bipolarinput operational amplifier achieves very low 1.
Baseline op176 opa4 opa4 the information provided herein is believed to be reliable. I have on had 4 ad8066s that i was going to have installed and was considering the opa627s. Opa1612 datasheet, cross reference, circuit and application notes in pdf format. Burrbrown dual fetinput, low distortion operational amplifier. I can get an adapter for the opa1642 or any other ti opamp that would suit the circuit.
Dac2 dx is an ideal upgrade for someone who wants a better dac than the entry level udac or audinst hudmx1. Ic datasheet pdf opa2604,pdfdual fetinput, low distortion operational amplifier. Audiophile replacement for the ne5532 who can handle. Opa2604ap, opa2604 low distortion dual opamp, buy opa2604ap. Op275 leaner and brighter than stock, almost grainy. Precision linear audio amplifiers selection guide pdf, 4. Input bias current vs time from power turnon time after power turnon min input bias current pa 0 1na 100 10 1 12345 vs 24vdc vs 15vdc vs 5vdc commonmode rejection vs commonmode voltage commonmode voltage v commonmode. Compare to the ad8066, i prefer the ad8066 for having better imaging and more transparant treble. To start viewing messages, select the forum that you want to visit from the selection below. Opa1642 datasheet, opa1642 datasheets, opa1642 pdf, opa1642 circuit. The only difference between the ad8620a vs ad8620b is the voltage drift per changing temperature 0. But lately i have been using a very simple opamp based preamp developed b.
The opa4 soundplus audio operational amplifiers are easy to use and free from phaseinversion and the overload problems often found in common fetinput operational amplifiers. The op amp drives its output so as to match its input and follow. Op270 also dense, but a little better soundstage than opa2604. Offset voltage is lasertrimmed to minimize the need for interstage coupling capacitors. Having said that though, in all honesty i cant really articulate why, but there is indeed something particularly nice soundin.
Tubey, better late than never i just replaced all ne5532 amps in benchmark dac1 with opa1612 and play it so far for few hours. Opa2604ap texas instruments integrated circuits ics digikey. Just like my conclusion long time ago, opa24 is still superior than 2604 as it sounds more balanced overall and smoother on top. My boozhound labs\jean miraga mm\mc stage have been in heavy use for some time now. Best opamps to replace tl072s in tac scorpionii gearslutz. My boozhound labs\\jean miraga mm\\mc stage have been in heavy use for some time now. Burrbrown dual fetinput, low distortion operational amplifier,alldatasheet, datasheet, datasheet search site for electronic components and semiconductors, integrated circuits, diodes, triacs, and other semiconductors.
These devices operate over a very wide supply voltage range of 2. Ive used the 8620 from analog devices in a headphone amplifier ive built. Opa1642 datasheet, opa1642 pdf, opa1642 data sheet, opa1642 manual, opa1642 pdf, opa1642, datenblatt, electronics opa1642, alldatasheet, free, datasheet, datasheets. A nice example of this is the ths6012 vs the tpa6120. A global provider of products, services, and solutions, arrow aggregates electronic components and enterprise computing solutions for customers and suppliers in industrial and commercial markets. Ive been reading more and more that folks are actually modding up to them. Although i am a fan of the opa24, i still have very considerable respect for the ne5532. The opa1612 offers railtorail output swing to within 600 mv with a 2 k. Opa164x soundplus highperformance, jfetinput audio. Opa1642 data sheet, product information and support. Opa2604 provides wide dynamic range, even with high source impedance. Im very happy with your opamp and it really sounds amazing. Ad827 high speed, low power dual op amp data sheet rev.
Search hello select your address select your address. A bit more expensive than the tl07x but way better for audio on the datasheet and in the ears. Input bias current vs time from power turnon time after power turnon min input bias current pa 0 1na 100 10 1 12345 vs 24vdc v s 15vdc v s 5vdc commonmode rejection vs commonmode voltage commonmode voltage v commonmode. Opa2604ap datasheet, opa2604ap pdf, opa2604ap data sheet, opa2604ap manual, opa2604ap pdf, opa2604ap, datenblatt, electronics opa2604ap, alldatasheet, free, datasheet. I also keep old cross reference books, preinternet stuff, in book form on a shelf nice for restoration work. Pricing and availability on millions of electronic components from digikey electronics. One of the best burr brown audio opamp for the price. What are the good general purpose audio opamps these days.
The audio issue may consider the opa22 burrbrownti. Searching for a opa627 opamp i found burson audio web page. The v6 are the only opamps in the world with reverse voltage protection. My technics suv9 is having relay issues, and needs a recap, and possible opamp change. Ti opa164xopa164xq1 op amps offer superior sound quality and railtorail output swing that allows for increased headroom, making these devices ideal for any audio circuit. Help help and support order status shipping ratesoptions returns and order issues tariff information. Ad8066 even brighter than op275, but without the graininess. Input cascode circuitry provides excellent commonmode rejection and maintains low input bias current. Opa2604 sounded very warm, very laid back and very easy to listen to but slightly veiled in the detail department. The tpa6120 is obviously based on the ths6012, but with some differences. Many gear manufactures tout op amp brands and part numbers in their marketing literature. Gday all, with all my general messing around with different op amps in simple phono stages of late, i think that i do regard the opa24 as being the bestnicest sounding. High slew rate, wide bandwidth, jfet input operational amplifiers.
Opamp test tl072 vs 24 vs ne5532n vs ne5532p vs 2604. Ti highperformance, jfetinput audio operational amplifiers,alldatasheet, datasheet, datasheet search site for electronic components and semiconductors, integrated circuits, diodes, triacs, and other semiconductors. If anything, it has a more neutral sound than the possibly slightly euphonic opa24, but its performance is very reliable and dependable and of a very high standard, which possibly explains its long standing use in professional audio gear. It is not bad, it has a nice color of sound, just a bit mellow with strong burr browns laid back. The harmonic texture seems more complete and realistic compared the the sparkos devices. Dual fetinput, low distortion operational amplifier.
Having said that, however, this may just be what the doctor ordered for those who like a laid back. There is no way you will get ears fatigue with this opamp, but you might get bored. Opa2604 with rl1k1 and different output levels vs frequency njm4558 with rl1k1 and different output levels vs frequency audio opamps, fact, myths and thd measurement resultsrev. Njm4558 with rl 1k1 and different output levels vs frequency. What bench reference information would be useful to you. Ive been toying with a guitar preamp design and thats what ive found so far. Opa2604ap general purpose amplifier 2 circuit 8pdip from texas instruments. Opa2604 opa2604ap low distortion operational amplifier ic. Opa1641, opa1642, opa1644 sbos484d december 2009revised april 2016 opa164x soundplus highperformance, jfetinput audio operational amplifiers 1 1 features 1 superior sound quality true jfet input operational amplifier with low input bias current low noise. New circuit techniques and special laser trimming of dynamic circuit performance yield very low harmonic distortion.
In some cases they show that distortion increases 10 times when the gain is increased 10 times. Oct 02, 2005 opa2604 sweet, but veiled sounding opamp. If youre not satisfied with the sound of the opa24, id first look at upgrading other components, like the caps, resistors etc. The sound is much better but theres still something a bit hifi and grey in the presentation. The burson supreme sound op amps deliver a wonderfully deep and rich sound. In the s1001 inputs, the new burrbrown opa1642 fet opamp is a. That said, burr brown opamps are generally a bit laidback sounding. Opamp based riaa phono preamp for mm and mc phono cartridges. Audio opamps, fact, no myths and thd measurement results. While other opamps are instantly damaged if reversely installed, the v6 are designed to survive such. Ive built quite a number of phono preamps including two diferent ones from oatley electronics tube\\jfet, silicon chip and boozhound labs.
Chocolaty and syrupy though a good easy to listen to op amp but not my cup of tea as i prefer a greater insight into the mix. If this is your first visit, be sure to check out the faq by clicking the link above. Double the output current to a load with the opa2604 audio. Opa1612 precision operational amplifier texas instruments. The opa1641 single, opa1642 dual, and opa1644 quad series are jfetinput, ultralow distortion, lownoise operational amplifiers fully specified for audio applications. Ive built quite a number of phono preamps including two diferent ones from oatley electronics tube\jfet, silicon chip and boozhound labs. Please do consider the potentially very large market that would use these opamps if they were offered in a dip package. Opa2604 datasheet, opa2604 datasheets, opa2604 pdf, opa2604 circuit. The analog devices ada4627 is essentially a second source version of the opa627. Opamp based high accuracy mm\mc phono preamp diy audio. Op amps are widely used and, not surprisingly, theyre a popular topic among audiophiles. This particular one is limited in current to about 125 ma on each rail. Compared to other operational amplifiers, such as tl083, they show better noise performance, improved output drive capability, and considerably higher smallsignal.
The former came first and the latter came a few years later. Opa164xopa164xq1 soundplus audio op amps ti mouser. Opa2604 with rl1k1 and different output levels vs frequency. Opa1642, and opa1644 series of operational amplifiers are. The opa1642 in particular for me has proven to be very stable in a number of dropin replacement situations. The op amp is a fundamental building block of audio gear.
I took a screen shot of the an6552 in the speaker circuit. Information about digikey careers site map api solutions newsroom. If youre doing audio, consider the opa22 burrbrownti. Opa24 vs opa2604 vs opa2107 kanedak tweakers asylum. Aug, 2014 gday all, with all my general messing around with different op amps in simple phono stages of late, i think that i do regard the opa24 as being the bestnicest sounding. Arrow electronics guides innovation forward for over 200,000 of the worlds leading manufacturers of technology used in homes, business and daily life. The opa1641, opa1642, and opa1644 railtorail output swing allows increased headroom, making these devices ideal for use in any audio circuit. Opa2604 pdf, opa2604 description, opa2604 datasheets, opa2604. The bursons are also much more detailed and revealing.
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