20 MBd High CMR Logic Gate Optocouplers

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The HCPL-2400 high speed optocoupler combines an 820 nm AlGaAs light emitting diode with a high speed photodetector. This combination results in very high data rate capability and low input current. The three state output eliminates the need for a pull out resistor and allows for direct drive of data buses.

The detector has optical receiver input stage with built-in Schmitt trigger to provide logic compatible waveforms, eliminating the need for additional waveshaping. The hysteresis provides differential mode noise immunity and minimizes the potential for output signal chatter.

The electrical and switching characteristics is guaranteed over the temperature range of 0oC to 70oC. This optocoupler is compatible with TTL, STTL, LSTTL, and HCMOS logic families. Typical data rates are 40 MBd.




  • High Speed: 40 MBd Typical Data Rate
  • High Common Mode Rejection: 10 kV/us at VCM = 300 V (Typical)
  • AC Performance Guaranteed over Temperature
  • High Speed AlGaAs Emitter
  • Compatible with TTL, STTL, LSTTL and HCMOS Logic Families
  • Totem Pole and Tri State Output (No Pull Up Resistor Required)
  • Safety Approval:
UL Recognized - 3750 V rms for 1 minute per UL1577
IEC/EN/DIN EN 60747-5-2 Approved with VIORM = 630 V peak (option 060)
CSA Approved
  • High Power Supply Noise Immunity
  • Options available are:
060 = IEC/EN/DIN EN 60747-5-2 VIORM = 630 V peak Option
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
  • Switching Power Supplies
  • Isolated Bus Driver (Networking Applications)
  • Ground Loop Elimination
  • High Speed Disk Drive I/O
  • Digital Isolation for A/D, D/A Conversion
  • Pulse Transformer Replacement

Lifecycle Status


Substance Compliance

  • RoHS
    Pb & Pb-free options available
Specification Value
Lifecycle Active
Distrib. Inventory Yes
CMR (min.) (V/µs) 1000.0
Vcm (V) 300.0
IF Min. (mA) 4.0
Input Current Ma Uom mA
RoHS6 Compliant Pb & Pb-free options available
Package 300mil DIP-8
Product Type 20 MBd Logic Gate
Prop Delay (tPHL) Max. (µs) 60.0
Prop Delay tPHL Uom ns
Prop Delay (tPLH) Max. (µs) 60.0
Prop Delay tPLH Uom ns
UL Insulation Rating Viso (VRMS) 3750.0
VDD2 (V) 5.0
IEC Maximum Working Insulation Voltage Viorm (VPEAK) 630
Prop Delay (tPHL) Max. (µs) 60 ns
Prop Delay (tPLH) Max. (µs) 60 ns
IF Min. (mA) 4 mA
Application Brief1 i
Application Note5 i
Brochures2 i
Design Guide1 i
FAQs1 i
Obsolescence Notice1 i
Options Data Sheet6 i
Product Change Notice (PCN)18 i
Promotional Material1 i
Regulatory Certificate2 i
Reliability Data Sheet4 i
Selection Guide2 i
Technical Notes1 i
White Papers3 i