We found this circuit with transistors in a Philips documentation from 1968. The double transistor can be replaced by discrete married types. The power supply is symmetrical.
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...