A4200

Product Summary

The A4200 is a designed optocoupler 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 to the logic output breaks ground loops and provides for a very high common mode rejection. The A4200 aids in the design process by providing guaranteed thresholds for logic high state and logic low state for the current loop, providing an LSTTL, TTL, or CMOS compatible logic interface, and providing guaranteed common mode rejection. The applications of the A4200 include Isolated 20 mA Current, Loop Receiver in: Computer, Peripherals, Industrial Control Equipment, Data Communications Equipment.

Parametrics

A4200 absolute maximum ratings: (1)Storage Temperature: -55℃ to +125℃; (2)Operating Temperature: -40℃ to +85℃; (3)Lead Solder Temperature: 260℃ for 10 s (1.6 mm below seating plane); (4)Supply Voltage – VCC: 0 V to 20 V; (5)Average Input Current - II: -30 mA to 30 mA; (6)Peak Transient Input Current - II: 0.5 A; (7)Enable Input Voltage – VE: -0.5 V to 20 V; (8)Output Voltage – VO: -0.5 V to 20 V; (9)Average Output Current – IO: 25 mA; (10)Input Power Dissipation – PI: 90 mW; (11)Output Power Dissipation – PO: 210 mW; (12)Total Power Dissipation – P: 255 mW.

Features

A4200 features: (1)Data Output Compatible with LSTTL, TTL and CMOS; (2)20 K Baud Data Rate at 1400 Metres Line Length; (3)Guaranteed Performance over Temperature (0℃ to 70℃); (4)Guaranteed On and Off Thresholds; (5)LED is Protected from Excess Current; (6)Input Threshold Hysteresis; (7)Three-State Output Compatible with Data Buses; (8)Internal Shield for High Common Mode Rejection; (9)Safety Approval UL Recognized -2500 V rms, for 1 Minute CSA Approved; (10)Optically Coupled 20 mA Current Loop Transmitter.

Diagrams