[sdiy] op amp directly connected to ADC

mskala at ansuz.sooke.bc.ca mskala at ansuz.sooke.bc.ca
Mon Jul 29 20:02:27 CEST 2019

On Mon, 29 Jul 2019, Vladimir Pantelic wrote:
> my understanding is that you want to keep the thing driving the ADC input as
> low impedance as possible in order to minimize the time to charge the internal

Well, that's the point of including the capacitor, which will have a low
impedance at the relevant frequency.  Seems to me that it'd make more
sense to put that capacitance on the op amp's power supply pins, though.

Matthew Skala
mskala at ansuz.sooke.bc.ca                 People before tribes.

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