3.3V/5V High Speed Digital CMOS Optocoupler

The dual-channel ACPL-K73L  is a 15 MBd CMOS optocoupler in a stretched SO8 package. The  optocouplers utilize the latest CMOS IC technology to achieve outstanding performance with very low power consumption.

The basic building blocks of the ACPL-K73L are 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-W70L-000E and ACPL-K73L-000E in ST Microelectronics' 16-bit PLC Digital Input Reference Design.


Pb-free options


Lifecycle status:

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Features [+-]

  • 3.3V and 5 V CMOS compatibility
  • High speed: 15 MBd min
  • 25ns max. pulse width distortion
  • 55ns max. propagation delay
  • 40ns max. propagation delay skew
  • 10 kV/µs minimum common mode rejection
  • –40 to 105°C temperature range
  • Glitch-Free Power-UP Feature
  • Non-inverting Output
  • Safety and regulatory approvals
    UL recognized: 5000 V rms for 1 min. per UL 1577 for ACPoption 020.
    CSA component acceptance Notice#5.
    IEC/EN/DIN EN 60747-5-2 approved for ACPL-K73L Option 060.
  • Options available are:
    060 = IEC/EN/DIN EN 60747-5-2 Option
    500 = Tape and Reel Packaging Option
    XXXE = Lead Free Option

Applications [+-]

  • Digital field bus isolation:
     -  RS485, RS232, CANbus, CClink
  • Multiplexed data transmission
  • Computer peripheral interface
  • Microprocessor system interface
  • DC/DC converter
  • Servo Motor

Benefits [+-]

  • Operate at wide supply voltages
  • Output goes low when the power is loss - to prevent any output glitch at the recovery of power supply
  • Small footprint- save PCB board space.
  • Excellent speed performance
  • Low input current and Idd2, reduces power consumption
  • Non-inverting output
  • CMOS output- eliminate the need of output pull-up resistors

Documents [+-]

Data Sheets & Technical Specifications

Application Notes

Brochures/Promotional Materials


Product Change Notices

Quality & Reliability

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