This circuit is from a 1980s Motorola documentation. The circuit makes use of old components that can in some cases be exchanged for modern equivalents.
July 2017 - The new Texas Instruments UCC20520 isolated drivers are already in the stock of Mouser...
This simple bridge circuit can be used for impedance or resistance measurement using a high...
September 2016 - It can be purchased by Mouser Electronics the new board from Texas Instruments...