| Question for op-amp guru's - Click HERE for Original Thread |
| ALW |
I'm looking for an op-amp to replace a TL074 in an active filter application. Any suggestions for quad packages as a drop-in replacement for an existing product?
I haven't really decided on target performance yet, but lower noise JFET types are the immediate goal.
I've had a quick scan through the parametric searches, but would love any other advice from those who've tried alternatives.
A. |
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| mikek |
| ...would generaly avoid quads....try duals eg NE5532..... |
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| Bill Fitzpatrick |
You want a drop in replacement so the 5532 is not a contender.
How about the OPA4134? |
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| ThingyNess |
| I second Bill's suggestion for the OPA4134 - the OPA4132 would work just as well, with better DC precision (less offset, among other things), but if I remember correct, the DIP versions have been discontinued (only the 14-SOIC package is available currently) |
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| johnny1 |
| Bill is right. You won't find anything better with four op amps in the same case. |
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| Nisbeth |
The OPA4132/4 are discontinued in the DIP-14 package. The OPA 4228 should work well instead.
/U. |
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| ALW |
Mikek,
I'd normally avoid quads too, but no choice in this case, I need drop-in replacement.
Thanks to everyone else, I'll download data sheets and investigate further, will let you know the outcome. Thanks for taking the time to post.
Andy. |
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| Petter |
Search the forum for "Brown Dog" and you will find various adapters. I would go for an adapter that would adapt 4 single SMT units to a quad if available and add local decoupling in the process.
If such adapter is not available I would make one myself. It is not that hard.
Petter |
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| carlmart |
AFAIK Brown Dog is not making any singles to quad adapters: only duals.
Which is a pity, because the ART DI/O DAC, which is one of the most modded units right off the shop, uses quads. And one of the better mods is using AD825s.
People are using LT1362/1365 instead, FET biased to class A. But they are expensive quads.
Carlos |
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