ADUM321N0WBRZ-RL7

Overview

The ADUM321N0WBRZ-RL7 is a dual-channel digital isolator from the iCoupler series, manufactured by Analog Devices Inc. It features a 5700Vrms isolation voltage and supports data rates up to 150Mbps with a common-mode transient immunity of 100kV/µs. The device operates on a single supply voltage ranging from 2.25V to 5.5V and provides unidirectional signal transmission in a 1/1 channel configuration. It is qualified under AEC-Q100 standards for automotive applications and functions within an operating temperature range of -40°C to +125°C.

Feature Summary

• Utilizes iCoupler magnetic coupling technology to provide robust signal isolation without optical components.
• Offers high common-mode transient immunity to maintain signal integrity in electrically noisy environments.
• Includes integrated DC-DC converter capability for isolated power delivery across the barrier.

Applications

• Automotive electronic control units requiring certified isolation
• Industrial communication bus interfaces
• Medical equipment signal isolation

Procurement Notes

Verify the specific suffix against official documentation to confirm package type and reel specifications. Confirm AEC-Q100 qualification status if automotive compliance is required. Check current availability as distribution may be restricted in certain regions. Ensure the ordering part number matches the exact electrical characteristics needed for the design.

Selection Notes

Select this component when high-speed data transmission up to 150Mbps is required alongside significant isolation voltage. Consider the 8-SOIC package dimensions for PCB layout constraints. Evaluate the 2.25V to 5.5V supply range compatibility with system logic levels. Verify thermal performance requirements against the specified operating temperature limits.

Part Context

This device belongs to the ADUM321N family of dual-channel digital isolators. It shares architectural similarities with other iCoupler products but is distinguished by its specific speed and isolation ratings. The family targets applications needing reliable galvanic isolation in compact form factors.

Replacement Considerations

Consult official substitution guides for compatible alternatives. Verify pinout and electrical parameter alignment before replacing existing designs with similar isolator models.