HCPL-4200

H Optically Coupled 20 mA Current Loop Receiver Technical Data HCPL-4200 Features Data Output Compatible with LSTTL, TTL and CMOS 20 K Baud Data Rate at 1400 Metres Line Length Guaranteed Performance over Temperature (0°C to 70°C) Guaranteed On and Off Thresholds LED is Protected from Excess Current Input Threshold Hysteresis Three-State Output Compatible with Data Buses Internal Shield for High Common Mode Rejection Safety Approval UL Recognized -2500 V rms, for 1 Minute CSA Approved Optically Coupled 20 mA Current Loop Transmitter, HCPL-4100, Also Available Description The HCPL-4200 optocoupler is designed to operate as a receiver 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 20 mA current loop...