6N139 optocouplers equivalent, high gain optocouplers.
* High current transfer ratio
– 2000% typical (4500 % typical for HCNW139/138)
* Low input current requirements
– 0.5 mA
* .
Current Transfer Ratio (CTR) is 300% minimum over 0 to 70°C for an LED current of 1.6 mA (1 TTL Unit load ). A 300% min.
These high gain series couplers use a Light Emitting Diode and an integrated high gain photodetector to provide extremely high current transfer ratio between input and output. Separate pins for the photodiode and output stage result in TTL compatibl.
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