LM 387

[Mark Amundson]

>I'm looking for a replacement for a LM 387. I don't know anything about
this chip, but my best quess is that it's a dual LM 386.
>Anyway, the replacement should have better noise performance, being a
preamp for a 16 bit ADC, and it must have the same pinout.
>I have a couple of NE 5532 chips and I was wondering if that would be an
improvement? Any suggestions?
>Thanx in advance, Guido

The LM387 is single supply audio preamp. I first used that chip about 19
years ago to build a 4-channel live sound mixer. Any op-amp replacement (the
NE5532 is a good choice) must deal with the splitting of the supply voltage
for bias reference. The LM387's popularity came from lack of a few good
op-amps in the 1970's to do low noise amplification at an economical price.

Mark Amundson,