ADUM5404CRWZ-RL

Overview

The ADUM5404CRWZ-RL is a quad-channel digital isolator from Analog Devices, featuring integrated DC/DC converters for power isolation. It provides 2500 Vrms isolation voltage and supports data rates up to 25 Mb/s with a maximum propagation delay of 60 ns. The device operates within a supply voltage range of 3 V to 5.5 V and offers high common-mode transient immunity of 25 kV/µs. Packaged in a 16-pin SOIC (0.295 inch width) surface-mount format, it functions unidirectionally across an industrial temperature range of -40°C to +105°C.

Feature Summary

• Integrates on-chip dual isolated DC/DC converters to eliminate external magnetic components
• Utilizes iCoupler magnetic coupling technology for signal transmission across isolation barrier
• Provides robust common-mode transient immunity to prevent false triggering in noisy environments

Applications

• Industrial automation systems requiring galvanic isolation between control and power stages
• Medical equipment needing certified isolation barriers for patient safety compliance
• Power metering applications involving high-voltage sensing and data acquisition

Procurement Notes

Verify the specific suffix RL indicates reel packaging configuration when sourcing. Confirm RoHS compliance status through official manufacturer documentation prior to integration. Ensure ESD handling protocols are followed during assembly due to moisture sensitivity classification. Cross-reference pinout diagrams with target PCB layout requirements to ensure compatibility with existing designs.

Selection Notes

Select this component when bidirectional communication is not required, as it supports only unidirectional channels. Consider the internal DC/DC converter capability if external isolated power supplies are undesirable. Evaluate the 2500 Vrms isolation rating against system voltage requirements to ensure adequate safety margins. Verify that the 25 Mb/s data rate meets the throughput needs of the specific application interface.

Part Context

This part belongs to the ADUM5404 series of digital isolators designed by Analog Devices. It is part of the iCoupler product family, which integrates transformer-based isolation technology directly into CMOS processes. The series is engineered to replace traditional optocouplers in applications demanding higher reliability, lower power consumption, and smaller form factors.

Replacement Considerations

Check for ADUM5404 variants with different thermal grades or package options if operating conditions exceed current specifications. Verify functional equivalence with other quad-channel isolators if supply constraints exist. Ensure substitute parts maintain compatible isolation voltage ratings and channel configurations.