ODP: CA3080 saturation/lock up?

[Roman Sowa]

If I recall wel, 072 suffers from 'output reversal' when
input voltage gets too close to supply rails
or maybe if differentioal input voltage is too big.
It then acts like it had replaced (-) and (+) inputs.
(like most of fet opamps)

but how can i be so ignorant to advise you since
I haven't seen a bit of the circuit with this problem.

Roman

> -----Oryginalna wiadomość-----
> Od:	Paul Perry [SMTP:pfperry at melbpc.org.au]
> Wysłano:	9 kwietnia 1999 07:47
> Do:	synth-diy at mailhost.bpa.nl
> Temat:	CA3080 saturation/lock up?
> 
> I have a ckt which appears to lock up or something 
> (resets after 30 seconds or so) possibly when the
> input signal peaks...
> is the 3080 susceptible to this?
> the only other thing in there is a TL072, which i cant
> remember seeing do anything like this..
> 
> paul perry Frostwave P/l
> (thinking as he types this that maybe there is some 
> weird rectification thing wrecking a bias somewhere..
> but , if anyone knows anythig abt this, please say..)