Summary
Optically Isolated Error Amplifier
Description
The FOD2712A Optically Isolated Amplifier consists of the popular AZ431L precision programmable shunt reference and an optocoupler. The optocoupler is a gallium arsenide (GaAs) light emitting diode optically coupled to a silicon phototransistor. The reference voltage tolerance is 1%. The current transfer ratio (CTR) ranges from 100% to 200%.
Source title
FOD2712AR2 Datasheet(PDF) - Fairchild Semiconductor