Analog Devices Inc. ADuM541x/ADuM641x Isolators

Analog Devices ADuM541x/ADuM641x Isolators are 2.5/3.75kVrms quad-channel digital isolators with integrated isoPower® DC-to-DC converters. Developed using iCoupler® technology, the DC-to-DC converters offer adjustable isolated power from 3.15-5.25V. The isolators have a 100kV/μs common-mode transient immunity, 7ns delay, and 150Mbps data rate for robust, high-speed data transfer in noisy and harsh environments.

The ADuM541x/ADuM641x isolators eliminate the user's need for a separate, isolated DC-to-DC converter when designing low-power, isolated applications. The devices' iCoupler chip scale transformer technology supports isolated logic signals and the DC-to-DC converters' magnetic components. Available in a compact, 24-lead SSOP package, the ADuM541x/ADuM641x Isolators help users design a small-form factor, total isolation solution.


  • isoPower integrated, isolated DC-to-DC converter
  • Up to 150mW output power
  • Quad DC to 150Mbps signal isolation channels
  • 24-lead SSOP package with 5.3mm minimum creepage
  • High temperature operation: 105°C
  • High common-mode transient immunity: 100kV/μs
  • Safety and regulatory approvals
    • UL recognition (pending)
    • 2500Vrms for 1 minute per UL 1577
    • CSA Component Acceptance Notice 5A (pending)
    • VDE certificate of conformity (pending)
      • DIN V VDE V 0884-10 (VDE V 0884-10):2006-12
      • VIORM = 565V peak


  • RS-232 transceivers
  • Power supply startup bias and gate drives
  • Isolated sensor interfaces
  • Industrial PLCs

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Block Diagrams

Block Diagram - Analog Devices Inc. ADuM541x/ADuM641x Isolators
Published: 2016-10-06 | Updated: 2022-03-11