Analog Devices Inc. ADuM25x/ADuM26x Digital Isolators

Analog Devices Inc. ADuM25x/ADuM26x Digital Isolators are 5- and 6-channel digital isolators with a 13ns maximum propagation delay and <4.5ns pulse width distortion at 5V operation. The isolators provide 100kV/µs common-mode transient immunity and tight channel matching at 4ns maximum.

The ADuM25x/ADuM26x data channels are independent and available in a variety of configurations. The data channels have a guaranteed data rate of 150Mbps maximum and 5kVrms withstand voltage rating.

Analog Devices ADuM25x/ADuM26x Digital Isolators operate on either side of a supply voltage ranging from 1.7V to 5.5V. The capability to operate on either side of the supply voltage enables voltage translation functionality across the isolation barrier and compatibility with lower voltage systems.

Based on iCoupler® technology, the ADuM25x/ADuM26x Digital Isolators ensure DC correctness in the absence of input logic transitions. Additionally, the isolators feature two different fail-safe options. The fail-safe options allow the outputs to transition to a predetermined state when the input power supply is not applied or the inputs are disabled.


  • 100kV/μs common-mode transient immunity
  • High robustness to radiated and conducted noise
  • Low propagation delay13ns maximum for 5V operation
  • 15ns maximum for 1.8V operation
  • 150Mbps maximum guaranteed data rate
  • Low dynamic power consumption
  • 1.8V to 5V level translation
  • +125°C temperature operation
  • Fail-safe high or low options
  • 16-lead, RoHS compliant, wide-body SOIC_IC package
  • Safety and regulatory approvals (pending)UL recognition:
    • 5000VRMS for 1 minute per UL 1577
    • CSA Component Acceptance Notice 5A
    • VDE certificate of conformity:
      • DIN V VDE V 0884-10 (VDE V0884-10):2006-12
      • VIORM = 849V peak
    • CQC certification per GB4943.1-2011


  • General-purpose multi-channel isolation
  • Serial peripheral interface (SPI)/data converter isolation
  • Industrial field bus isolation

Functional Block Diagrams

Published: 2017-04-24 | Updated: 2022-03-11