Summary
Low Input Current, High Gain Optocouplers
Description
These high gain series couplers use a Light Emitting Diode and an integrated high gain photodetec tor to provide extremely high current transfer ratio between input and output. Separate pins for the photodiode and output stage result in TTL compatible saturation voltages and high speed operation. Where desired the VCC and VO terminals may be tied together to achieve conven tional photodarlington operation. A base access terminal allows a gain bandwidth adjustment to be made
Source title
6N138 Datasheet(PDF) - AVAGO TECHNOLOGIES LIMITED