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