Description
The 6N138/9 and HCPL-2730/HCPL-2731 optocouplers consist of an AlGaAs LED optically coupled to a high gain split darlington photodetector.
The split darlington configuration separating the input photodiode and the first stage gain from the output transistor permits lower output saturation voltage and higher speed operation than possible with conventional darlington phototransistor optocoupler. In the dual channel devices, HCPL-2730/HCPL2731, an integrated emitter - base resistor provides superior stability over temperature.

Features
■ Low current - 0.5 mA
■ Superior CTR-2000%
■ Superior CMR-10 kV/µs
■ CTR guaranteed 0-70°C
■ U.L. recognized (File # E90700)
■ VDE recognized (File # 120915) Ordering option V, e.g., 6N138V
■ Dual Channel - HCPL-2730
■ HCPL-2731

Applications
■ Digital logic ground isolation
■ Telephone ring detector
■ EIA-RS-232C line receiver
■ High common mode noise line receiver
■ µP bus isolation
■ Current loop receiver