Analog Devices Inc. ADuM120N/ADuM121N Dual-Channel Digital Isolators

Analog Devices ADuM120N/ADuM121N Dual-Channel Digital Isolators with iCoupler® technology offer outstanding performance characteristics. The isolators have a low 13ns propagation delay with a pulse width distortion of less than 3ns at 5V operation. Designed with independent data channels, the isolators offer tight channel matching at 3.0ns maximum. Operating on either side of a 1.8V to 5V supply voltage, the isolators are compatible with lower voltage systems and enable voltage translation across the isolation barrier. Even in the absence of input logic transitions, DC correctness is ensured. The ADuM120N/ADuM121N Digital Isolators are qualified for automotive applications, and are available in a variety of configurations with a 3kVrms withstand voltage. 


  • High common-mode transient immunity 100kV/μs typical
  • High robustness to radiated and conducted noise
  • Low propagation delay
    • 13ns maximum for 5V operation
    • 15ns maximum for 1.8V operation
  • 150Mbps minimum data rate
  • Safety and regulatory approvals (pending)
    • UL recognition: 3000Vrms for 1 minute per UL 1577
    • CSA Component Acceptance Notice 5A
    • VDE certificate of conformity
      • DIN V VDE V 0884-10 (VDE V 0884-10) 2006-12
      • VIORM = 565V peak
    • CQC certification per GB4943.1-2011
  • Backward compatible
  • Low dynamic power consumption
  • 1.8V to 5V level translation
  • High temperature operation 125°C
  • Failsafe high or low options
  • 8-lead, RoHS-compliant, SOIC package
  • Qualified for automotive applications


  • General-purpose multi-channel isolation
  • Industrial field bus isolation

EVAL-1CH2CHEBZ Evaluation Board

Analog Devices EVAL-1CH2CHEBZ Evaluation Board is designed to support single and dual-channel iCoupler® standard data isolators in 8-lead SOIC packages. The EVAL-1CH2CHEBZ board assesses the entire range of iCoupler data transfer functions. The board also independently powers each side of the iCoupler isolator and applies high differential voltages between the two sides.

Additional Resources

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Published: 2016-07-26 | Updated: 2022-03-11