This circuit is from an old documentation, making use of an operational of the time. The circuit can be adapted to use modern components. The power supply must be symmetrical.
July 2017 - The new Texas Instruments UCC20520 isolated drivers are already in the stock of Mouser...
The circuit shown in the figure can be used to detect the operation of infrared sources whose...
This 2005 circuit from a Linear Technology manual makes use of the LTC610HV and an optical coupler that...