[sdiy] Any noise avantage to parallel 2164 VCAs?

Neil Johnson neil.johnson71 at gmail.com
Mon Jun 18 00:01:05 CEST 2018


Mattias Rickardsson wrote:
> No no, separate input resistors and RC snubber networks for the two VCAs

It is _not_ a snubber.

> so you know what current each virtual-ground input pin gets - and then summing
> their output current into one common op-amp just as you said.

It's worse than that.  If you common two (or more) inputs then you
have two (or more) internal feedback paths fighting each other.  That
won't turn out nice.


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