These high gain series couplers use a AlGaAs LED and an integrated high gain photo detector to provide an extremely high current transfer ratio between input and output. Separate pins for the photodiode and output stage result in TTL compatible saturation voltage and high speed operation.
1.High Voltage Isolation2.Isolation in line receiver 3. Ground loop elimination 4.Pulse transformer replacement 5.Feedback Element in Switching Mode Power Supplies 6. Power transistor isolation in motor drives 7.High Speed Logic Ground Isolation 8.Interface between Microprocessor system computer and their peripher –TTL / TTL, TTL / CMOS, TTL / LSTTL