ADUM3400WARWZ

Overview

The ADUM3400WARWZ is a four-channel digital isolator from Analog Devices, utilizing iCoupler magnetic coupling technology. It operates on a single supply voltage ranging from 2.7 V to 5.5 V and provides bidirectional data transmission across four independent channels. The device supports a maximum data rate of 90 Mb/s with a typical propagation delay of 32 ns. It features an insulation voltage rating of 2500 Vrms and is housed in a 16-lead SOIC package. Designed for industrial applications, it meets AEC-Q100 qualification standards and functions within a temperature range of -40°C to +105°C.

Feature Summary

• Integrates four independent bidirectional digital isolation channels using chip-level transformer technology.
• Provides high-speed signal transmission with a maximum data rate of 90 Mb/s.
• Features robust electromagnetic noise immunity and strict channel-to-channel matching.
• Includes integrated logic and power path isolation within a compact surface-mount package.

Applications

• Isolation for RS-485 and CAN FD communication interfaces
• Industrial fieldbus system isolation
• PWM controller signal isolation
• General-purpose multi-channel isolation in instrumentation

Procurement Notes

Verify the specific suffix 'W' indicates the standard SOIC-16 package width and 'R' denotes reel packaging if applicable to your variant. Confirm AEC-Q100 automotive qualification status against your project requirements. Check current availability as distribution may be limited or restricted. Ensure PCB layout adheres to recommended spacing for the 2500 Vrms isolation barrier.

Selection Notes

Select this component when four isolated bidirectional channels are required at data rates up to 90 Mb/s. Compare against lower-speed variants like the ADUM3400WBRWZ if power consumption is critical, noting its 10 Mb/s limit. Ensure the 2.7 V to 5.5 V supply range matches your system rails. Verify that the SOIC-16 footprint fits your board design constraints.

Part Context

This part belongs to the ADUM3400 series of four-channel digital isolators. It shares the same core architecture as the tube-packaged ADUM3400WARWZ but differs in shipping configuration. The series is designed to replace traditional optocouplers in high-speed digital isolation applications, offering superior performance in terms of speed, power, and reliability.

Replacement Considerations

The ADUM3400WARWZ is functionally equivalent to the ADUM3400WARWZ-RL regarding electrical specifications, differing only in packaging format (tube versus reel). Other members of the ADUM3400 family, such as the ADUM3401 or ADUM3402, offer different channel configurations or unidirectional options.