6N138-500E

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 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°C for an LED current of 1.6 mA (1TTL Unit load ). A 300% minimum CTR enables operation with 1 TTL Load using a 2.2 k? pull-up resistor.

• Low input current requirements – 0.5 mA
• TTL compatible output – 0.1V VOL typical
• Performance guaranteed over temperature 0°C to 70°C
• Base access allows gain bandwidth adjustment
• High output current – 60mA
• Safetyapproval
  • UL recognized – 3750 V rms for 1minute and 5000 V rms for 1 minute per UL 1577
  • CSA approved
• Available in 8-Pin DIP package