provides detailed information on the 6N138, 6N139 and HCPL-2730, HCPL-2731 optocouplers, including product features, application scenarios, technical indicators, etc.
This document details the specifications of the Fairchild 6N138/9 and HCPL-2730/HCPL-2731 Darlington optocouplers. These devices consist of an AlGaAs LED optically coupled to a high gain split darlington photodetector, designed for applications requiring digital logic ground isolation and high common mode noise rejection.
The datasheet provides absolute maximum ratings, electrical characteristics including current transfer ratio (CTR) and propagation delay, switching characteristics, and isolation parameters. It also includes application notes on resistor calculations for interfacing with various logic families such as CMOS, TTL, and EIA RS232C.
| Low Input Current | 0.5 mA |
|---|---|
| Superior CTR | 2000% |
| Superior CMR | 10 kV/us |
| Operating Temperature Range | -40 to +85 °C |
| Storage Temperature Range | -55 to +125 °C |
| Average Output Current (6N138/9) | 60 mA |
They are useful for digital logic ground isolation, telephone ring detectors, EIA-RS-232C line receivers, and LP bus isolation.
The current transfer ratio (CTR) is guaranteed between 0% and 70°C.