ADUM4473CRIZ-RL

Overview

The ADUM4473CRIZ-RL is a quad-channel digital isolator from Analog Devices, featuring an integrated IsoPower isolated DC-to-DC converter. It provides 5000 Vrms isolation voltage and supports data rates up to 25 Mb/s with a maximum propagation delay of 60 ns. The device operates on supply voltages between 3 V and 5.5 V and functions within a temperature range of -40°C to +105°C. Packaged in a 20-SOIC format, it utilizes magnetic coupling technology for signal transmission.

Feature Summary

• Integrates a regulated isolated power supply controller to eliminate external transformer requirements
• Provides high common-mode transient immunity for reliable operation in noisy environments
• Supports unidirectional data transmission across four independent channels

Applications

• Pulse Width Modulation (PWM) control systems
• Gate driver circuits requiring isolated power
• Industrial automation interfaces
• Medical equipment signal isolation

Procurement Notes

Verify the specific suffix 'RL' indicates reel packaging when sourcing. Confirm current availability status as supply may be limited or restricted. Ensure compatibility with moisture sensitivity level requirements during storage and handling procedures before integration into production workflows.

Selection Notes

Select this component when an integrated isolated power source is required alongside signal isolation. Compare channel count and data rate against system bandwidth needs. Verify that the SOIC-20 package dimensions fit the target PCB layout constraints and thermal management requirements effectively.

Part Context

This part belongs to the ADuM447x family of quad-channel digital isolators. These devices combine high-speed signal isolation with integrated power conversion capabilities. The series is designed to simplify designs by reducing component count and board space compared to discrete solutions.

Replacement Considerations

Check for parameter-equivalent alternatives such as the ADUM4470CRIZ-RL or ADUM4471CRIZ-RL. Verify pinout compatibility and electrical specifications before substitution.