Very High CMR, Wide VCC Logic Gate Optocouplers

Currently Viewing:

The dual-channel HCPL-2231 optocoupler is an optically-coupled logic gate. It contains an GaAsP LED. The detectors have totem pole output stages and optical receiver input stages with built-in Schmitt triggers to provide logic-compatible waveforms, eliminating the need for additional waveshaping.

The electrical and switching characteristics of the HCPL-2231 is guaranteed from -40oC to 85oC and a VCC from 4.5 volts to 20 volts. Low IF and wide VCC range allows compatibility with TTL, LSTTL, and CMOS logic and result in lower power consumption compared to other high speed couplers. Logic signals are transmitted with a typical propagation delay of 150 ns.




  • Wide Operating VCC Range: 4.5 to 20 Volts
  • 300 ns Propagation Delay Guaranteed over the Full Temperature Range
  • 5 Mbd Typical Signal Rate
  • Low Input Current (1.6 mA to 1.8 mA)
  • Hysteresis
  • Totem Pole Output (No Pullup Resistor Required)
  • Available in 8-Pin DIP, SOIC-8, Widebody Packages
  • Guaranteed Performance from -40 degrees C to 85 degrees C
  • Safety Approval:
UL Recognized - 3750 V rms for 1 min. per UL1577
CSA Approved
  • Options available are:
300 = Gull Wing Surface Mount Option
500 = Tape and Reel Packaging Option
XXXE = Lead Free Option


  • Isolation of High Speed Logic Systems
  • Computer-Peripheral Interfaces
  • Microprocessor System Interfaces
  • Ground Loop Elimination
  • Pulse Transformer Replacement
  • High Speed Line Receiver
  • Power Control Systems

Lifecycle Status


Substance Compliance

  • RoHS
    Pb & Pb-free options available
Specification Value
Lifecycle Active
Distrib. Inventory Yes
Vcm (V) 50.0
IF Min. (mA) 1.8
Input Current Ma Uom mA
RoHS6 Compliant Pb & Pb-free options available
Package 300mil DIP
Product Type 5 MBd Logic Gate
UL Insulation Rating Viso (VRMS) 3750.0
VDD2 (V) 5
IF Min. (mA) 1.8 mA
Application Brief1 i
Application Note6 i
Brochures2 i
Data Sheet1 i
Design Guide1 i
FAQs2 i
Obsolescence Notice1 i
Options Data Sheet5 i
Product Change Notice (PCN)17 i
Promotional Material2 i
Regulatory Certificate2 i
Reliability Data Sheet5 i
Selection Guide2 i
White Papers3 i