ADUM3401BRWZ

Overview

The ADUM3401BRWZ is a quad-channel digital isolator utilizing Analog Devices iCoupler magnetic coupling technology. It operates within a supply voltage range of 2.7 V to 5.5 V and supports bidirectional data transmission at speeds up to 10 Mb/s. The device provides an isolation voltage of 2500 Vrms with a common-mode transient immunity of 25 kV/µs. Typical propagation delay is 50 ns, with rise and fall times of 3 ns. It functions reliably across an extended temperature range from -40°C to +105°C and is housed in a 16-lead SOIC package.

Feature Summary

• Integrates four independent bidirectional channels for simultaneous signal isolation
• Employs on-chip transformer-based magnetic coupling for galvanic isolation
• Provides enhanced system-level electrostatic discharge protection
• Supports high-speed digital communication with low propagation delay

Applications

• Industrial automation control systems
• Medical equipment signal isolation
• Power metering and energy management interfaces
• Automotive sensor interface circuits

Procurement Notes

Verify the specific suffix BRWZ against official Analog Devices documentation to confirm the exact tape-and-reel or tube packaging configuration and temperature grade. Ensure compatibility with existing PCB footprints for the 16-SOIC package. Cross-reference datasheet revisions to validate electrical parameters such as CMTI and propagation delay against current design requirements.

Selection Notes

Select this component when four isolated bidirectional channels are required within a single package. It is suitable for applications needing moderate data rates up to 10 Mb/s with robust isolation ratings. Consider power consumption levels relative to other iCoupler variants if battery operation is critical. Verify that the 2500 Vrms isolation rating meets the safety standards of the target application environment.

Part Context

This part belongs to the ADuM340x family of quad-channel digital isolators. These devices replace traditional optocouplers by offering superior performance in speed, size, and reliability. The family utilizes CMOS-compatible logic interfaces and integrates passive components directly onto the silicon substrate to minimize board space and assembly complexity.

FAQ

What is the maximum common-mode transient immunity (CMTI) of the ADUM3401BRWZ?

The typical CMTI is 25 kV/µs.

Does the ADUM3401BRWZ support unidirectional or bidirectional data flow?

It supports bidirectional data transmission for all four channels.