d123
Advanced Member level 5
Hi,
What's a suitable approximate substitute of a dual slope ADCs inputs? It is to use as a relatively realistic load for an OA voltage follower. Datasheets and app notes say next to nothing helpful.
From scant info I did find, and common sense reasoning, most obvious is any OA with (suitable bandwidth and) similar input impedance to 1000M and 86dB CMRR at +-1V in.
For what reasons might these two manufacturers' datasheets and assorted app notes, and other manufacturer's datasheets, for this specific part not say what input capacitance is and explicitly state what input impedance actually is? They seem like important parameters to include, to me.
If it helps:
What's a suitable approximate substitute of a dual slope ADCs inputs? It is to use as a relatively realistic load for an OA voltage follower. Datasheets and app notes say next to nothing helpful.
From scant info I did find, and common sense reasoning, most obvious is any OA with (suitable bandwidth and) similar input impedance to 1000M and 86dB CMRR at +-1V in.
For what reasons might these two manufacturers' datasheets and assorted app notes, and other manufacturer's datasheets, for this specific part not say what input capacitance is and explicitly state what input impedance actually is? They seem like important parameters to include, to me.
If it helps: