Lm4562 is a dual opAmp, LME49740 is a quad opampLM4562. It should be the same chip. It has been discussed on this forum before, I believe.
ST Micro MC 33079 sounds great! It's a quad in SOIC or DIP. I like it better than the TI family when used as buffer with no feedback; the TIs sound stuffy in comparison with no voltage gain. But TIs sound good with 6-10dB voltage gain. ymmv
Always check for oscillation after replacing opamps! I have swapped these a few times without problems.
Always check for oscillation after replacing opamps! I have swapped these a few times without problems.
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Sorry, I have not been careful when I used the LME49740 datasheet.Lm4562 is a dual opAmp, LME49740 is a quad opamp
Then OPA4134 is a possibility.
Thank, but i don't find any pdip package with regular provider,Sorry, I have not been careful when I used the LME49740 datasheet.
Then OPA4134 is a possibility.
I used a KRK Ergo that came with MC33079 quad opamps. Subbed in every version I could find as replacement. None were better, several did not work as well. Tried FET and bipolar input. Think it is the crossover distortion reduction. Low power draw also.
But way better than expected. Spent way too much time testing to go back to MC33079 chips. Was hoping to find an improvement.
But way better than expected. Spent way too much time testing to go back to MC33079 chips. Was hoping to find an improvement.
Thank, yes they are similar, i will have to check closely the datasheetsST Micro MC 33079 sounds great! It's a quad in SOIC or DIP. I like it better than the TI family when used as buffer with no feedback; the TIs sound stuffy in comparison with no voltage gain. But TIs sound good with 6-10dB voltage gain. ymmv
Always check for oscillation after replacing opamps! I have swapped these a few times without problems.
Thank, but i don't find any pdip package with regular provider,
In Marseille you can buy anything......
I got mine from here: 10pcs OPA4134PA DIP14 OPA4134 DIP new original-in Integrated Circuits from Electronic Components & Supplies on Aliexpress.com | Alibaba Group
They seem from Burr-Brown and worked well until now.
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