HCPL-4100
Overview
The HCPL-4100 optocoupler is designed to operate as a transmitter in equipment using the 20 mA current loop. 20 mA current loop systems conventionally signal a logic high state by transmitting 20 mA of loop current (MARK), and signal a logic low state by allowing no more than a few milliamperes of loop current (SPACE). Optical coupling of the signal from the logic input to the 20 mA current loop breaks ground loops and provides very high immunity.
- Guaranteed 20 mA Loop Parameters
- Data Input Compatible with LSTTL, TTL and CMOS Logic
- Guaranteed Performance over Temperature (0°C to 70°C)
- Internal Shield for High Common Mode Rejection
- 20 kBaud Data Rate at 400 Metres Line Length
- Guaranteed On and Off Output Current Levels
- Safety Approval UL Recognized -2500 V rms for 1 minute CSA Approved
- Optically Coupled 20 mA Current Loop Receiver, HCPL-4200, Also Available
