High CMR, High Speed TTL Compatible Optocouplers

The HCPL-0631 is a optically coupled gate that combines a GaAsP light emitting diode and an integrated high gain photo detector. An enable input allows the detector to be strobed. The output of the detector IC is an open collector Schottky-clamped transistor. The internal shield provides a guaranteed common mode transient immunity specification of 5,000 V/ms.

This unique design provides maximum ac and dc circuit isolation while achieving TTL compatibility. The optocoupler ac and dc operational parameters are guaranteed from -40oC to 85oC allowing troublefree system performance.

HCPL-0631 is suitable for high speed logic interfacing, input/output buffering, as line receivers in environments that conventional line receivers cannot tolerate and is recommended for use in extremely high ground or induced noise environments.

Pb-free options


Lifecycle status:

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Features [+-]

  • 5 kV/ms Minimum Common Mode Rejection (CMR) at VCM = 50 V
  • High Speed: 10 MBd Typical
  • LSTTL/TTL Compatible
  • Low Input Current Capability: 5mA
  • Guaranteed ac and dc Performance over Temperature: -40oC to 85oC
  • Available in 8-Pin DIP, SOIC-8, Widebody Packages
  • Strobable Output (Single Channel Products only)
  • Safety Approval:
UL Recognized - 3750 V rms for 1 minute per UL1577 CSA Approved
  • Options available:
020 = 5000 V rms/1 minute UL Rating Option
300 = Gull Wing Surface Mount Option
500 = Tape and Reel Packaging Option
XXXE = Lead Free Option

Applications [+-]

  • Isolated Line Receiver
  • Computer-Peripheral Interfaces
  • Microprocessor System Interfaces
  • Digital Isolation for A/D, D/A Conversion
  • Switching Power Supply
  • Instrument Input/Output Isolation
  • Ground Loop Elimination
  • Pulse Transformer Replacement

Documents [+-]

Data Sheets & Technical Specifications

Application Notes

Brochures/Promotional Materials

Design & Reference Guides


Obsolescence Notices

Product Change Notices

Quality & Reliability

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