[sdiy] Couple of OTA questions

[ASSI]

On Montag 05 November 2007, Cornutt, David K wrote:
> It occurred to me that I could produce more "interesting" results
> by switching in larger or smaller caps.  But too small a cap will
> in some cases result in the cap rising to the max voltage that
> the OTA is capable of driving it to, depending on the input.
> Can this damage the OTA?

If I understand the circuit correctly from your description, no.  It 
doesn't phase-reverse or do anything stupid like that as long as there 
is no feedback path.  If there is a feedback path, the inputs should be 
protected from going out of their specified range; like with some 
resistors (that should already be there) and two antiparallel diodes to 
keep the max. differential voltage and/or max. input current in check.


Achim.
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