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HCPL-2731

Fairchild Semiconductor
Part Number HCPL-2731
Manufacturer Fairchild Semiconductor
Description LOW INPUT CURRENT HIGH GAIN SPLIT DARLINGTON OPTOCOUPLERS
Published Mar 23, 2005
Detailed Description LOW INPUT CURRENT HIGH GAIN SPLIT DARLINGTON OPTOCOUPLERS SINGLE-CHANNEL 6N138 6N139 DESCRIPTION The 6N138/9 and HCPL-27...
Datasheet PDF File HCPL-2731 PDF File

HCPL-2731
HCPL-2731

Overview
LOW INPUT CURRENT HIGH GAIN SPLIT DARLINGTON OPTOCOUPLERS SINGLE-CHANNEL 6N138 6N139 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.
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.
An improved p...


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