Low Power 3.3V/5V High Speed CMOS Optocoupler

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The ACPL-077L digital optocoupler utilizes the latest CMOS IC technology to achieve 25MBd data rate and 6ns maximum pulse width distortion distortion with enhanced reliability relative to system level IEC 61000-4-X testing (ESD/Burst/Surge).

Basic building blocks of this digital optocoupler family are a CMOS LED driver IC, a high speed LED and a CMOS detector IC. A CMOS logic input signal controls the LED driver IC, which supplies current to the LED. The detector IC incorporates an integrated photodiode, a high speed transimpedance amplifier, and a voltage comparator with an output driver.

ACPL-077L provides an excellent guaranteed common mode transient immunity specification of 35 kV/µs at VCM 1000V.

ACPL-077L is UL recognized with isolation voltage of 3750 Vrms for 1 minute, and IEC/EN/DIN EN 60747-5-5 working insulation voltage VIORM of 567 VPEAK for reinforced insulation.

The ACPL-077L optocouplers are available in the SO-8 package.


  • Enhance reliability relative to system level IEC 61000-4-X testing (ESD/Burst/Surge)
  • 3.3V and 5V CMOS Compatibility
  • CMOS buffer input
  • High Speed: DC to 25 MBd
  • 6 ns max. Pulse Width Distortion
  • 40 ns max. Prop. Delay
  • 35 kV/µs min. Common Mode Rejection at VCM = 1000V
  • Guaranteed AC and DC performance over wide temperature: -40°C to +105°C
  • Safety and Regulatory Approvals
      - UL 1577 - 3750 Vrms for 1 min
      - CSA Component Acceptance Notice #5
      - IEC/EN/DIN EN 60747-5-5 Approval for Reinforced Insulation
  • Options Available are:
    060 = IEC/EN/DIN EN 60747-5-5 VIORM = 567 VPEAK
    500 = Tape and Reel Packaging Option
    XXXE= Lead Free Option


  • Digital Fieldbus Isolation: CC-Link, DeviceNet, Profibus, SDS
  • Multiplexed Data Transmission
  • General Instrument and Data Acquisition
  • Computer Peripheral interface
  • Microprocessor System Interface

Lifecycle Status


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Substance Compliance

  • RoHS
    Pb-free options
Specification Value
Lifecycle Active
Distrib. Inventory Yes
RoHS6 Compliant Pb-free options only
Product Type High Speed CMOS Logic Gate
Package SO8
VDD (V) 3.3/5
Prop Delay (tPLH) Max. (µs) 40.0
Prop Delay (tPHL) Max. (µs) 40.0
CMR (min.) (V/µs) 35000.0
Vcm (V) 1000.0
UL Insulation Rating Viso (VRMS) 3750.0
IEC Maximum Working Insulation Voltage Viorm (VPEAK) 567
Data Sheet1 i
Options Data Sheet3 i
Product Change Notice (PCN)3 i
Reliability Data Sheet3 i
Technical Notes1 i
White Papers2 i
FAQs1 i
Application Note1 i
Promotional Material1 i


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