CA3080 saturation/lock up?

[Rene Schmitz]

At 15:46 09.04.99 +1000, you wrote:
>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?

>From my observations I'd say yes.
I had a similar problem in a filter based on CA3080/TL07X. 
It occured only on high Q settings, so the feedback 
was possibly the cause. But I'm still puzzled on it.
The way I've cured it was to reduce the input levels until 
the effect dissapeared.


>the only other thing in there is a TL072, which i cant
>remember seeing do anything like this..

This opamp can make nasty things when the common mode 
voltage swing is exceeded.

Hope it helps

 Rene


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