> Any suggestions/recommendations for opto-coupling a DC or low frequency
> signal (10s of Hz) to the AN pins for measurement ? Maybe V-F -> F-V for
> example ? Pointers to a proven design would be absolutely spiffing


Howzabout you give us the FULL spec of what you are trying to do.

How many channels
How many bits
Min update rate per channel (10's of Hz = eg 50 mS per channel or 50 mS per
8 channels or ...)
Isolation requirements.
... ?


        RM

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