ADUM4472CRIZ-RL

Overview

The ADUM4472CRIZ-RL is a four-channel digital isolator from Analog Devices Inc., utilizing iCoupler magnetic coupling technology. It integrates an isolated DC/DC converter to provide power across the isolation barrier, eliminating the need for external bias supplies on the secondary side. The device offers a 5000 Vrms isolation voltage and supports data rates up to 25 Mbps with a common-mode transient immunity of 25 kV/µs. It operates within a supply voltage range of 3 V to 5.5 V and functions reliably in temperatures from -40°C to +105°C. Packaged in a 20-SOIC format.

Feature Summary

• Integrates an isolated DC/DC converter to generate secondary-side power, simplifying system design by removing the need for separate isolated power supplies.
• Employs iCoupler magnetic coupling technology to achieve high reliability and robust signal transmission across the isolation barrier.
• Provides high common-mode transient immunity to maintain signal integrity in electrically noisy environments with rapid voltage changes.

Applications

• Industrial automation systems requiring galvanic isolation between control logic and power stages
• Medical equipment needing safe patient isolation and reliable signal transmission
• Power electronics interfaces such as motor drives and inverter controls

Procurement Notes

Verify the specific suffix RL indicates reel packaging when ordering. Confirm that the CRIZ designation corresponds to the standard industrial temperature range and RoHS compliance status required for your assembly process. Ensure compatibility with your PCB footprint for the 20-SOIC package. Cross-reference the latest datasheet revision for any pinout or electrical characteristic updates before finalizing procurement specifications.

Selection Notes

Select this component when a single-chip solution for both data isolation and isolated power delivery is required. It is suitable for designs where board space is limited and multiple discrete components would otherwise be needed. Consider the 25 Mbps data rate and 5000 Vrms isolation rating against your system's noise environment and safety standards requirements.

Part Context

This part belongs to the ADuM447x family of digital isolators from Analog Devices Inc. The series is characterized by its integration of isolation technology with power conversion capabilities. These devices are designed to replace traditional optocouplers and transformer-based solutions in applications demanding higher performance, smaller form factors, and improved long-term reliability.

Replacement Considerations

The ADUM4470CRIZ-RL is documented as a parameter-equivalent substitute. Verify channel configuration and data rate specifications match your application needs before substitution.