3.3V/5V High Speed Digital CMOS Optocoupler

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The dual-channel  ACPL-074L digital optocouplers have a 15MBd minimum data rate.

The digital optocouplers utilize the latest CMOS IC technology to achieve outstanding high speed performance with very low power consumption.

The basic building blocks of the ACPL-074L include  high speed LEDs and CMOS detector ICs. Each detector incorporates an integrated photodiode, a high speed transimpedance amplifier, and a voltage comparator with an output driver.

ACPL-074L optocouplers are available in the SOIC-8 package style.

Broadcom also offers the same performance in the single channel ACPL-071L and ACPL-M75L. 


  • 3.3V and 5 V CMOS compatibility
  • High speed: 15 MBd min
  • 30 ns max.  pulse width distortion
  • 40ns max. propagation delay (at 3.3V supply voltage)
  • 30 ns max. propagation delay skew
  • 10 kV/µs minimum common mode rejection
  • –40 to 105°C temperature range
  • Glitch-Free Power-Up Feature  
  • Safety and regulatory approvals:
    UL recognized (3750 V rms for 1 minute per UL 1577)
    CSA component acceptance notice #5.
    IEC/EN/DIN EN 60747-5-2 approved for ACPL-074L Option 060
  • Options available are:
    060 = IEC/EN/DIN EN 60747-5-2 Option
    500 = Tape and Reel Packaging Option
    XXXE = Lead Free Option


  • Digital field bus isolation:
    - CANBus, CCLink, RS485, USB
  • Multiplexed data transmission
  • Computer peripheral interface
  • Microprocessor system interface
  • DC/DC converter

Lifecycle Status


Substance Compliance

  • RoHS
    Pb & Pb-free options available
Specification Value
Lifecycle Active
Distrib. Inventory Yes
RoHS6 Compliant Pb & Pb-free options available
Product Type High Speed CMOS Logic Gate
Package SO8
VDD (V) 3.3/5
IF Min. (mA) 9.0
Prop Delay (tPLH) Max. (µs) 40.0
Prop Delay (tPHL) Max. (µs) 40.0
CMR (min.) (V/µs) 10000.0
Vcm (V) 1000.0
UL Insulation Rating Viso (VRMS) 3750.0
IEC Maximum Working Insulation Voltage Viorm (VPEAK) 560
Application Brief1 i
Application Note5 i
Brochures2 i
Data Sheet1 i
FAQs2 i
Options Data Sheet4 i
Product Change Notice (PCN)4 i
Regulatory Certificate1 i
Reliability Data Sheet2 i
Selection Guide2 i
Technical Notes1 i
White Papers4 i
Promotional Material1 i


3.3V/5V High Speed Digital CMOS Optocoupler


3.3V/5V High Speed Digital CMOS Optocoupler