ADUM3402WBRWZ

Overview

The ADUM3402WBRWZ is a quad-channel digital isolator from Analog Devices, utilizing iCoupler magnetic coupling technology. It features four independent data channels with a 2/2 input-output configuration. The device supports bidirectional signal transmission at a maximum data rate of 90 Mb/s. It operates within a supply voltage range of 2.7 V to 5.5 V and provides an isolation voltage of 2500 Vrms. Key electrical parameters include a propagation delay of 32 ns and a typical power consumption of 136 mA. It is qualified under AEC-Q100 standards for automotive applications.

Feature Summary

• Integrates four independent bidirectional digital channels using on-chip monolithic transformer technology for high-speed signal isolation.
• Provides robust galvanic isolation with a 2500 Vrms rating and high common-mode transient immunity.
• Supports flexible logic level translation between 2.7 V and 5.5 V domains on both sides of the isolator.
• Meets AEC-Q100 qualification requirements for enhanced reliability in automotive electronic environments.

Applications

• Automotive gate driver interfaces for motor control systems
• Industrial fieldbus isolation for communication networks
• Isolated PWM controller signal transmission
• Data converter isolation in measurement systems

Procurement Notes

Verify the specific suffix WBRWZ to confirm the reel packaging format and AEC-Q100 automotive qualification status. Ensure the ordering part number matches the required data rate and channel configuration. Check current availability as supply may be restricted or subject to factory special orders. Confirm RoHS compliance and moisture sensitivity level requirements for your assembly process.

Selection Notes

Select this component when bidirectional communication is required across the isolation barrier. The 90 Mb/s data rate suits high-speed industrial and automotive applications. Consider the 136 mA power consumption against thermal constraints. Compare with lower-speed variants if power efficiency is critical. Verify that the SOIC-16 package dimensions fit the PCB layout requirements.

Part Context

This part belongs to the ADUM3400-02 series of quad-channel digital isolators. It shares the same core iCoupler architecture as other models in the family but differs in data rate and packaging options. Variants like ADUM3402BRWZ offer lower speeds, while CRWZ versions provide tube packaging. All share similar isolation ratings and pin configurations.

Replacement Considerations

ADUM3402CRWZ offers identical electrical performance in tube packaging instead of reel. ADUM3402BRWZ provides a lower 10 Mb/s data rate option in tube packaging. Cross-reference pinouts and isolation ratings before substitution. Verify that any alternative meets the same AEC-Q100 automotive qualification if required for the application.