This circuit is from a 1968 documentation using one of the first integrated circuits available at the time, the TAA370. The circuit is powered by 1.3 V using a 200 ohm handset.
Adafruit Raspberry Pi Perma Proto PCB Kits Adafruit kits are available from Mouser Electronics...
The circuit shown is from the Motorola Linear Databook of 1990. This circuit converts signals in...
We found this circuit in a 2005 Linear Technology application manual. The circuit makes use of a...