We found this circuit in the 1990 Motorola Linear Databook. The circuit must use symmetric source and has 10times the voltage gain.
This circuit provides 6.3V of output from a 9V input. The circuit was found in a Dutch publication from...
August 2017 - Mouser Electronics already has in stock the new integrated circuit CP2615, which...
The output voltage of this circuit is equal to the sum of the input voltages, if the result is...