The AD546 electrometer-type op amp is a precision device with bias current below 1 pA housed in a cost-effective 8-pin plastic mini-DIP package. The AD546J/K feature subpicoampere bias current (1/0.5 pA at max room ambient temperature), laser-trimmed input offset voltage (2/1 mV max), and low input offset voltage drift (20 µV/°C). Read full article