Optically Coupled 0 MA Current Loop Receiver

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 sig nal a Logic high state by transmit ting 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 HCPL-4200 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 buf er circuit on the current loop side of the HCPL-4200 provides typi- cally 0.8 mA of hysteresis which increases the immunity to common mode and dif erential mode noise. The buf er also provides a controlled amount of LED drive current which takes into account any LED light output degradation. The internal shield allows a guaranteed 1000 V/s common mode transient immunity. By Avago Technologies
Part Manufacturer Description Datasheet Samples
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8T49N242-006NLGI8 Integrated Device Technology Inc VFQFPN-40, Reel
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HCPL-4200 's PackagesHCPL-4200 's pdf datasheet



HCPL-4200 Pinout, Pinouts
HCPL-4200 pinout,Pin out
This is one package pinout of HCPL-4200,If you need more pinouts please download HCPL-4200's pdf datasheet.

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