Sample and Hold Circuit Using CA3140 Op-Amp

The schematic diagram below shows a very simple sample-and-hold circuit using the CA3140 as the readout amplifier for the memory capacitor. The CA3080A is used as both input buffer amplifier and low feed-through transmission switch. System offset nulling is provided for CA3140 via its offset nulling pins. A load simulation of 2k and 30pF is shown in the schematic , […]

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