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This literature is subject to all applicable copyright laws and is not for resale in any manner.HCPL0700, HCPL0701, HCPL0730, HCPL0731 Low Input Current High Gain Split Darlington Optocouplers April 2009 HCPL0700, HCPL0701, HCPL0730, HCPL0731 Low Input Current High Gain Split Darlington Optocouplers Single Channel: HCPL0700, HCPL0701, Dual Channel: HCPL0730, HCPL0731 Features Description Low input current: 0.5mA The HCPL0700, HCPL0701, HCPL0730 and HCPL0731 optocouplers consist of an AlGaAs LED optically coupled Superior CTR: 2000% to a high gain split darlington photodetector housed in a Superior CMR 10 kV/s compact 8-pin small outline package. The HCPL0730 CTR guaranteed 0C to 70C and HCPL0731 devices have two channels per package U.L. Recognized (le E90700) for optimum mounting density. VDE 0884 recognized (le 136616) The split darlington conguration separating the input approval pending for HCPL0730/0731 photodiode and the rst stage gain from the output tran- BSI recognized (le 8661, 8662) sistor permits lower output saturation voltage and higher HCPL0700/0701 only speed operation than possible with conventional darling- ton phototransistor optocoupler. Applications The combination of a very low input current of 0.5mA Digital logic ground isolation and a high current transfer ratio of 2000% makes this Telephone ring detector family particularly useful for input interface to MOS, EIA-RS-232C line receiver CMOS, LSTTL and EIA RS232C, while output compati- bility is ensured to CMOS as well as high fan-out TTL High common mode noise line receiver requirements. P bus isolation Current loop receiver Schematics V V + 1 8 N/C 1 8 CC CC V F1 V + 2 7 V 2 7 01 B V F V 3 6 V 3 6 O 02 Truth Table V F2 LED V O GND GND N/C 4 5 + 4 5 ON LOW OFF HIGH HCPL0700 / HCPL0701 HCPL0730 / HCPL0731 2003 Fairchild Semiconductor Corporation www.fairchildsemi.com HCPL0700, HCPL0701, HCPL0730, HCPL0731 Rev. 1.0.1