An Optocoupler Alternative

iCoupler® Digital Isolator Technology

Optocouplers are slow, power hungry, difficult to integrate with other functions and degrade over time. By contrast, iCoupler digital isolators offer an alternative to optocouplers by combining high bandwidth on-chip transformers and fine scale CMOS circuitry that improve reliability, size, power, speed, timing accuracy, and ease of use for designers.

iCoupler technology was created a decade ago to address the limitations of optocouplers. ADI’s digital isolators use low-stress, thick-film polyimide insulation to achieve thousands of volts of isolation that can be monolithically integrated with standard silicon ICs and can be fabricated in single-channel, multi-channel, and bidirectional configurations. These alternatives to standard optocouplers can also be embedded with other data acquisition, communications and control ICs so designers can devote their time to improving system functionality rather than worrying about isolation.

Why Digital Isolators?

  • 4x improvement in data rate and timing specifications
  • Integrates multiple isolation channels with other functions to reduce size and cost
  • Operates at power levels up to 90% lower than optocouplers
  • Minimizes external components needed to connect to other digital devices
  • Increases reliability by eliminating LEDs used in optocouplers

Anatomy of a Digital Isolator

Download this whitepaper to learn about digital isolator advantages over opticouplers.

Learn more about optocoupler alternatives