Description

The FOD2742 Optically Isolated Amplifier consists of the popular KA431 precision programmable shunt reference and an optocoupler. The optocoupler is a gallium arsenide (GaAs) light emitting diode optically coupled to a silicon phototransistor. It comes in 3 grades of reference voltage tolerance = 2, 1, and 0.5.

Features

■ Optocoupler, precision reference and error amplifier in single package

■ 2.5V reference

■ CTR 100 to 200

■ 2,500V RMS isolation

■ UL approval E90700, Volume 2

■ BSI approval 8661, 8662

■ VDE approval 136616

■ CSA approval 1113643

■ Low temperature coefficient 50 ppm/°C max.

■ FOD2742A: tolerance 0.5

FOD2742B: tolerance 1

FOD2742C: tolerance 2

Applications

■ Power supplies regulation

■ DC to DC converters