[sdiy] OTA filter stage transfer function

David Moylan dave at westphila.net
Tue Jul 20 08:51:49 CEST 2010


Can anyone clear up a question I'm having?  When an OTA like the 13700 
has a capacitor to ground on the output in a typical filter stage 
(rather than feeding an opamp with the cap in the feedback loop), is the 
normalized transfer 1/s because it's a current output, rather than 1/(s+1)?

Trying to refresh my filter theory.

Thanks.

Dave



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