ADUM5401ARWZ

Overview

The ADUM5401ARWZ is a quad-channel digital isolator featuring an integrated isoPower isolated DC-DC converter. It provides four independent signal isolation channels supporting data rates up to 25 Mbps (NRZ). The device offers regulated 3.3 V or 5.0 V outputs with up to 500 mW power capability from a 5.0 V input, or 3.3 V output from a 3.3 V input. It utilizes iCoupler chip-scale transformer technology for signal and power isolation within a 16-pin SOIC package with a 7.6 mm creepage distance.

Feature Summary

• Integrates isoPower isolated DC-DC converter providing regulated 3.3 V or 5.0 V output
• Utilizes iCoupler chip-scale transformer technology for complete isolation of signals and power paths
• Offers high common-mode transient immunity exceeding 25 kV/µs
• Includes multiple safety and regulatory approvals including UL, CSA, and VDE

Applications

• RS-232, RS-422, and RS-485 transceiver isolation
• Industrial fieldbus isolation
• Isolated sensor interfaces
• Industrial PLC systems

Procurement Notes

Verify the specific suffix against the manufacturer's current datasheet to confirm pinout and electrical characteristics, as variations exist within the ADuM540x family. Confirm availability status directly with authorized distributors, as supply levels may fluctuate. Ensure PCB layout adheres to AN-0971 guidelines to meet emission standards due to the high-frequency switching nature of the integrated isoPower converter.

Selection Notes

Select this component when a compact solution requires both signal isolation and isolated power generation in a single package. It is suitable for designs needing four independent channels with high CMTI. Consider the 16-pin SOIC footprint and thermal requirements for the integrated DC-DC converter. Verify that the required data rate does not exceed 25 Mbps and that the operating temperature range meets system specifications.

Part Context

This part belongs to the Analog Devices ADuM540x series of quad-channel digital isolators. The series differentiates models based on channel directionality and voltage configurations. The ADUM5401 specifically features a 3/1 channel configuration, meaning three channels are unidirectional in one direction and one channel is unidirectional in the opposite direction, all sharing the integrated isoPower converter.

Replacement Considerations

The ADUM5401WXRWZ is listed as obsolete with the ADUM5401WCRWZ-1 identified as a similar replacement. Verify compatibility regarding package dimensions and electrical parameters before substitution.