ADUM6221A

RECOMMENDED FOR NEW DESIGNS

Dual-Channel Isolator with Integrated DC-to-DC Converter

Analog Devices ADUM6221A Product Info

10 February 2026 6

Features

isoPower integrated, isolated DC-to-DC converter
100 mA output supply
Meets CISPR 32/EN55032 Class B emission limits up to 5 Mbps at full load on a 2-layer PCB
Dual 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

UL 1577

V_ISO = 5000 V rms for 1 minute

IEC/EN/CSA 62368-1
IEC/CSA 60601-1
IEC/CSA 61010-1
CQC GB 4943.1
DIN EN IEC 60747-17 (VDE 0884-17) (pending)

V_IORM = 596 V peak

Part details & applications

The ADuM6221A is a dual-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 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.

The ADuM6221A eliminates 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 and total isolation solution.

The ADuM6221A isolators provide two independent isolation channels (for more details, see the Pin Configurations and Function Descriptions section).

Applications

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)

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