[sdiy] ota's as gates.

[Nils Pipenbrinck]

Dumb question maybe, but anyways.

I'm designing a little noise gate circuit around a 3080. I can't guarantee
that my control-voltage will down to -V however. Right now I always have a
little bit of current flowing into the Iabc input, and thus the OTA does not
shut down completely.

This lead me to the strange idea to just raise the negative supply of the
OTA a bit.. maybe a diode drop or so. I think that way I get a little
dead-zone.

Would this work? Will the ota misbehave if I try to pull the Iabc input pin
below the negative supply voltage?

Thanks,

  Nils