1. Products
  2. Interface and Isolation
  3. Digital Isolation Technology
  4. isoPower
  5. ADUM6420A


Features and Benefits

  • isoPower integrated, isolated dc-to-dc converter
  • 100 mA output supply
  • AEC-Q100 qualified for automotive applications ADuM6421AW (ADuM6423AW pending)
  • Meets CISPR 32/EN55032 Class B emission limits up to 5 Mbps at a full load on a 2-layer PCB
  • Quad dc to 100 Mbps signal isolation channels
  • 28-lead, fine pitch, SOIC with 8.3 mm minimum creepage
  • High temperature operation: 125°C maximum
  • High common-mode transient immunity: 100 kV/μs
  • Safety and regulatory approvals (pending)
    • UL recognition (pending)
      • 5000 V rms for 1 minute per UL 1577
    • CSA Component Acceptance Notice 5A (pending)
    • VDE V 0884-11 certificate of conformity (pending)
      • VIORM = 566 V peak
    • CQC certification per GB4943.1-2011 (pending)

Product Details

The ADuM6420A/ADuM6421A/ADuM6422A/ADuM6423A/ADuM6424A1 are quad-channel digital isolators with an isoPower®, integrated, isolated dc-to-dc converter. Based on the Analog Devices, Inc., iCoupler® technology, the dc-to-dc converter provides regulated, isolated power that meets CISPR 32/EN 55032 Class B limits at a full load on a 2-layer printed circuit board (PCB) with ferrites. Popular voltage combinations and the associated output current levels are listed in Table 1 in the data sheet.

The ADuM6420A/ADuM6421A/ADuM6422A/ADuM6423A/ADuM6424A eliminate the need for a separate, isolated dc-to-dc converter in 500 mW, isolated designs. The iCoupler chip scale transformer technology is used for isolated logic signals and for the magnetic components of the dc-to-dc converter. The result is a small form factor, total isolation solution.

The ADuM6420A/ADuM6421A/ADuM6422A/ADuM6423A/ADuM6424A isolators provide four independent isolation channels. See the Pin Configurations and Function Descriptions in the data sheet for additional information.


  • RS-232 transceivers
  • Power supply start-up bias and gate drives
  • Isolated sensor interfaces
  • Automotive on-board charger (OBC) and dc to dc
  • Industrial programmable logic controllers (PLCs)

1 Protected by U.S. Patents 5,952,849; 6,873,065; 6,903,578; and 7,075,329. Other patents are pending.

Product Lifecycle icon-recommended Recommended for New Designs

This product has been released to the market. The data sheet contains all final specifications and operating conditions. For new designs, ADI recommends utilization of these products.

Evaluation Kits (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
ADUM6420ABRNZ3 Material Declaration Reliability Data 28-Lead SOIC (Wide, Finer Pitch)
ADUM6420ABRNZ3-RL Material Declaration Reliability Data 28-Lead SOIC (Wide, Finer Pitch)
ADUM6420ABRNZ5 Material Declaration Reliability Data 28-Lead SOIC (Wide, Finer Pitch)
ADUM6420ABRNZ5-RL Material Declaration Reliability Data 28-Lead SOIC (Wide, Finer Pitch)
Wafer Fabrication Data

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Pricing displayed is based on 1-piece. The USA list pricing shown is for budgetary use only, shown in United States dollars (FOB USA per unit), and is subject to change. International prices may vary due to local duties, taxes, fees and exchange rates.