ADUM1402WTRWZ

Overview

The ADUM1402WTRWZ is a four-channel digital isolator from the Analog Devices iCoupler family, housed in a 16-lead SOIC package. It operates on a single power supply ranging from 2.7 V to 5.5 V and supports bidirectional data transmission at speeds up to 90 Mb/s. The device provides 2500 Vrms isolation voltage via magnetic coupling technology. Key electrical specifications include a maximum propagation delay of 34 ns and a typical operating supply current of 44 mA. It is qualified under AEC-Q100 standards for automotive applications and functions reliably within an extended temperature range of -40°C to +125°C.

Feature Summary

• Utilizes iCoupler magnetic coupling technology for robust signal isolation without external transformers.
• Supports bidirectional communication across all four independent channels simultaneously.
• Meets AEC-Q100 qualification requirements for automotive electronic component reliability.
• Integrates high common-mode transient immunity to maintain signal integrity in noisy environments.

Applications

• Automotive gate driver circuits requiring isolated control signals
• Industrial communication bus interfaces such as CAN and LIN
• Medical equipment with strict safety isolation requirements
• Power conversion systems needing feedback loop isolation

Procurement Notes

Verify the specific suffix WTRWZ indicates reel packaging when sourcing components. Confirm that the bidirectional channel configuration matches the system design requirements. Ensure compliance with RoHS directives and check for moisture sensitivity level handling procedures during storage and assembly processes.

Selection Notes

Select this part when bidirectional data transfer is required across four isolated channels. Compare against unidirectional variants if only one-way transmission is needed. Consider the 90 Mb/s speed limit relative to higher-speed alternatives. Verify that the 2500 Vrms isolation rating satisfies the specific safety standards of the target application environment.

Part Context

This component belongs to the ADUM1402 series of digital isolators manufactured by Analog Devices. It shares architectural similarities with other members like the ADUM1400 and ADUM1401 but differs in channel count and directionality. The series represents a transition toward higher integration and lower power consumption compared to earlier transformer-based isolation solutions.

Replacement Considerations

The ADUM1402ARW is listed as a discontinued alternative within the same product family. Verify pin compatibility and electrical parameter alignment before substituting. Check for updated manufacturing status and availability constraints associated with legacy parts.