6N139SD Datasheet

Optoisolators - Transistor, Photovoltaic Output


The 6N138/9( 6N139SD ) and HCPL-2730/HCPL-2731 optocouplers consist of an AlGaAs LED optically coupled to a high gain split darlington photodetector. The split darlington conguration separating the input photodiode and the rst 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. The combination of a very low input current of 0.5 mA and a high current transfer ratio of 2000% makes this family particularly useful for input interface to MOS, CMOS, LSTTL and EIA RS232C, while output compatibility is ensured to CMOS as well as high fan-out TTL requirements. An internal noise shield provides exceptional common mode rejection of 10 kV/µs. 6N139SD 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 6N139SD 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


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