On 25/01/2011 22:48, Mark Rages wrote:
>> >  My local electronics shop had it. And when I say "local", I mean with=
in 500
>> >  m of the campus. But they were selling it for $11. I instead went wit=
h two
>> >  LM324s for $1.40.
> AD620: 30=B5V input offset voltage
> LM324: 2 mV input offset voltage
>
> How big is the signal you're trying to measure?
an LM324 may not work very well compared to AD620. It's a general=20
purpose op-amp.

--=20
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