ADUM5401CRWZ

Overview

The ADUM5401CRWZ is a quad-channel digital isolator from Analog Devices, featuring an integrated isolated DC-to-DC converter. It provides four data channels with three unidirectional inputs and one output (3/1 directionality). The device operates on a single 3 V to 5.5 V supply and delivers 25 Mb/s data rates. Key electrical parameters include a 2500 Vrms isolation voltage, 60 ns maximum propagation delay, and 25 kV/µs common-mode transient immunity. It functions within a temperature range of -40°C to +105°C and is housed in a 16-pin SOIC package.

Feature Summary

• Integrates an isolated DC-to-DC converter to power the secondary side without external components
• Provides robust magnetic coupling for high common-mode transient immunity
• Supports unidirectional signal transmission across four independent channels

Applications

• Isolated gate driver circuits
• Industrial process control systems
• Medical equipment requiring galvanic isolation

Procurement Notes

Verify the specific suffix 'CRWZ' to confirm the tube packaging and commercial grade temperature rating. Ensure the design accounts for the integrated DC/DC converter requirements, including external capacitor placement as specified in the datasheet. Confirm that the 3/1 channel configuration aligns with the system's input-output topology needs before finalizing the order.

Selection Notes

Select this component when a fully isolated power supply is required on the secondary side alongside data isolation. The 3/1 channel architecture suits applications where multiple signals flow in one direction and one returns. Compare against non-isolated power variants if board space for the DC/DC transformer is constrained or if bidirectional communication is necessary.

Part Context

This part belongs to the ADuM540x family of IsoPower digital isolators. It combines high-speed data isolation with power delivery in a single package. The series is designed to replace traditional optocouplers and discrete isolation solutions, offering improved performance and reduced board area for industrial and automotive interfaces.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation.