This high gain series optocoupler uses 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 compatible saturation voltages and high speed operation. Where desired the VCC and VO terminals may be tied together to achieve conventional photodarlington operation. A base access terminal allows a gain bandwidth adjustment to be made.
The 6N138 is designed for use mainly in TTL applications. Current transfer ratio (CTR) is 300% minimum over 0 to 70 degrees C for an LED current of 1.6 mA (1 TTL Unit load). A 300% minimum CTR enables operation with 1 TTL Load using a 2.2 k ohm pull-up resistor.
Selection for lower input current down to 250 mA is available upon request.
Optoisolator Darlington with Base Output 3750Vrms 1 Channel 8-DIP
High Speed Optocouplers 100 KBd 2500Vrms
| Broadcom Inc. | DigiKey | VAST STOCK CO., LIMITED | |
|---|---|---|---|
| Product Category | Optocouplers | Optocouplers | Optocouplers |
| Product Number | 6N138 | 516-1007-5-ND | 6N138 |
| Product Name | Low Input Current, High Gain Optocouplers | Transistor, Photovoltaic Output Optoisolators | High Speed Optocouplers |
| Input | DC | DC | |
| Output | Photodiode | Photodarlington | |
| Approvals | UL, CSA, IEC/EN/DIN EN 60747-5-2 | ||
| Package Type | 8-Pin DIP | "8-DIP (0.300"", 7.62mm)" | |
| Mounting Option | Through Hole | Through Hole |
