ADUM5211BRSZ

Overview

The ADUM5211BRSZ is a dual-channel digital isolator featuring an integrated isoPower isolated DC-to-DC converter. It utilizes iCoupler magnetic coupling technology to provide galvanic isolation with a rated insulation voltage of 2500 Vrms and high common-mode transient immunity exceeding 25 kV/µs. The device supports data rates up to 100 Mb/s with a propagation delay of 15 ns. It operates on a single 5.5 V supply and delivers a regulated output voltage selectable between 3.15 V and 5.25 V, enabling power transfer across the isolation barrier within a 150 mW limit.

Feature Summary

• Integrates an isolated DC-to-DC converter for simultaneous signal and power transmission
• Employs iCoupler magnetic coupling technology for robust galvanic isolation
• Provides high common-mode transient immunity for noise-sensitive environments
• Offers configurable regulated output voltages to support various logic families

Applications

• Industrial automation systems requiring isolated communication interfaces
• Medical equipment needing reinforced safety isolation
• Power electronics monitoring and control circuits
• Instrumentation systems with ground potential differences

Procurement Notes

Verify the specific suffix (BRSZ) against the manufacturer's current datasheet to confirm package dimensions and tape-and-reel specifications. Ensure the selected variant matches the required operating temperature range and insulation ratings for your specific application standards. Cross-reference ordering information with official Analog Devices documentation to avoid discrepancies in packaging or revision levels.

Selection Notes

Select this component when both signal isolation and isolated power delivery are required in a compact footprint. The integrated converter simplifies design by eliminating external isolated power supplies. Consider the 150 mW power limit and the need for external bypass capacitors as specified in the evaluation board guidelines. Verify that the 100 Mb/s data rate meets the system timing requirements.

Part Context

This part belongs to the ADuM521x family of dual-channel digital isolators from Analog Devices. These devices are designed to replace traditional optocouplers and transformer-based solutions, offering superior performance in terms of speed, power consumption, and reliability. The family shares the same core iCoupler technology and package outline, differing primarily in channel configuration and specific electrical characteristics.

Replacement Considerations

Direct substitutes include other members of the ADuM521x series, such as the ADUM5210ARSZ or ADUM5212, depending on the specific channel count and pinout requirements. Verify compatibility regarding the integrated DC/DC converter output voltage and current capabilities before substitution.