The circuit presented is from the Motorola Linear Databook of 1990. The integrated circuit is a transconductance operating and the power supply need not be symmetrical.
The interesting circuit shown in the figure can have its gain digitally controlled and have two...
This circuit was obtained from an English magazine from 1981. The magazine no longer exists, but...
This Power supply is intended to Power small loads with currents up to 30 mA. The voltage depends...