1. Products
  2. Interface and Isolation
  3. Digital Isolation Technology
  4. isoPower
  5. ADuM5028


Features and Benefits

  • isoPower integrated, isolated dc-to-dc converter
  • 100 mA output current for ADuM5020
  • 60 mA output current for ADuM5028
  • Meets CISPR22 Class B emissions limits at full load on a 2-layer PCB
  • 16-lead SOIC_W package with 7.8 mm minimum creepage
  • 8-lead SOIC_IC package with 8.3 mm minimum creepage
  • High temperature operation: 125°C maximum
  • Safety and regulatory approvals
    • UL recognition (pending)
      • 3000 V rms for 1 minute per UL 1577
    • CSA certification per IEC 62368-1, IEC 61010-1, and IEC 60601-1
    • VDE certificate of conformity (pending)
      • VDE V 0884-10
      • VIORM = 565 V peak
    • CQC certification per GB4943.1-2011 (pending) 

Product Details

The ADuM5020 and ADuM50281 isoPower®, integrated, isolated dc-to-dc converters. Based on the Analog Devices, Inc., iCoupler® technology, these dc-to-dc converters provide regulated, isolated power that is below CISPR22 Class B limits at full load on a 2‑layer printed circuit board (PCB) with ferrites.

The ADuM5020 and ADuM5028 eliminate the need to design and build isolated dc-to-dc converters in applications up to 500 mW. The iCoupler chip scale transformer technology is used for the magnetic components of the dc-to-dc converter. The result is a small form factor, isolated solution.

The ADuM5020 and ADuM5028 isolated dc-to-dc converters provide two different package variants: the ADuM5020 in a wide body, 16-lead SOIC_W package, and the ADuM5028 in the space saving, 8-lead, wide body SOIC_IC. For 5 V input operations, use the ADuM5020-5BRWZ and the ADuM5028-5BRIZ. For 3.3 V input to 3.3 V output ADuM5020, use the ADuM5020-3BRWZ and the ADuM5028- 3RIZ. See the Pin Configuration and Function Descriptions section and the Ordering Guide for more information.


  • RS-485/RS-422/CAN transceiver power
  • Power supply startup bias and gate drives
  • Isolated sensor interfaces

Product Lifecycle icon-recommended Production

At least one model within this product family is in production and available for purchase. The product is appropriate for new designs but newer alternatives may exist.

Evaluation Kits (1)

Documentation & Resources

  • View All (11)
  • Data Sheet (1)
  • User Guide (1)
  • Safety and Regulatory Compliance (1)
  • Product Selection Guide (1)
  • Solutions Bulletin & Brochure (1)
  • Video (2)
  • Technical Article (3)
  • Webcast (1)
  • Tools & Simulations

    IBIS Model

    Design Resources

    ADI has always placed the highest emphasis on delivering products that meet the maximum levels of quality and reliability. We achieve this by incorporating quality and reliability checks in every scope of product and process design, and in the manufacturing process as well.  "Zero defects" for shipped products is always our goal.View our quality and reliability program and certifications for more information.

    Part Number Material Declaration Reliability Data Pin/Package Drawing CAD Symbols, Footprints & 3D Models
    ADUM5028-3BRIZ Material Declaration Reliability Data 8-Lead SOIC (Increased Creepage)
    ADUM5028-3BRIZ-RL Material Declaration Reliability Data 8-Lead SOIC (Increased Creepage)
    ADUM5028-5BRIZ Material Declaration Reliability Data 8-Lead SOIC (Increased Creepage)
    ADUM5028-5BRIZ-RL Material Declaration Reliability Data 8-Lead SOIC (Increased Creepage)
    Wafer Fabrication Data

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