[sdiy] Spice model for CA3080 OTA

[Neil Johnson]

Hi Richie,

> If the output of the filter sometimes mutes and sticks to one of the rails,
> I'd hazzard a guess that there might be an op-amp in there somewhere who's
> output undergoes phase-reversal when one of the inputs goes outside the
> normal operating range.

You could well be right.  The CA3080 datasheet does not say it does
not go into phase reversal (gotta love those double-negatives!) so it
could be the CA3080.  The datasheet for the OPA134 clearly states that
it does NOT suffer phase reversal.

Neil
--
http://www.njohnson.co.uk