[sdiy] dsPIC CV input protection

Mattias Rickardsson mr at analogue.org
Sat Nov 15 13:49:24 CET 2008


2008/11/15 Seb Francis <seb at burnit.co.uk>:
>
> So really the only sensible solution does seem to be to run the opamp at the
> appropriate supply voltage so it saturates before the voltage goes out of
> range.

People often want to avoid saturating OP-amps, but perhaps this supply
trick is good enough. (Using an OP-amp rectifier circuit instead
wouldn't have to saturate the OP-amp, I guess)

Thanks for pointing out the reasons for active buffering. :-)

/mr



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