This power supply has a resolution of 10 pA in the current range from -100 to +100 nA. The circuit is from a 90s Electronic Design operating with voltages from -4 to +3.5 V.
This circuit was found in the September 1974 issue of Radio Electronics magazine. The circuit uses...
This circuit was found in the December 1983 issue of Radio Electronics magazine. The sensor is an...
We found this circuit in a 1975 publication. The circuit can be made with more modern equivalent...