We found this circuit in the National Semiconductor's Linear Applications Handbook of 1994. The circuit uses an operational transconductance amplifier.
This simple CMOS touch switch was obtained in a 1987 publication. All components are common and the...
This circuit is from a current regulator up to 1 A, ie a constant current source. The LM320...
Found in a Popular Electronics from the 90s, this circuit reaches 100 kHz and battery power is...