ADUM4472CRIZ

Overview

The ADUM4472CRIZ is a quad-channel digital isolator from Analog Devices Inc., utilizing iCoupler magnetic coupling technology. It integrates an isolated DC/DC power supply controller, enabling operation with independent power domains on both sides of the isolation barrier. The device offers 5000Vrms isolation voltage and supports data rates up to 25Mbps. It features a common mode transient immunity of 25kV/µs and operates within a temperature range of -40°C to +105°C. Packaged in a 20-SOIC (0.295 inch width) surface-mount format, it provides bidirectional signal transmission capabilities for general-purpose applications.

Feature Summary

• Integrates an isolated DC/DC converter controller to generate internal isolated power, eliminating the need for external isolated supplies.
• Employs iCoupler magnetic coupling technology to provide robust electrical isolation between input and output sides.
• Supports high-speed data transmission with a maximum data rate of 25Mbps across four independent channels.
• Features high common-mode transient immunity to maintain signal integrity in electrically noisy environments.

Applications

• Isolated gate drivers for power electronics such as inverters and motor drives
• Industrial communication interfaces requiring galvanic isolation
• Medical equipment with safety isolation requirements
• Automotive systems needing reliable signal transmission across isolation barriers

Procurement Notes

Verify the specific suffix 'CRIZ' against the manufacturer's current datasheet to confirm package dimensions and pinout compatibility. Ensure that the integrated DC/DC controller requirements match your system's power budget and layout constraints. Confirm RoHS compliance status and moisture sensitivity level before assembly planning.

Selection Notes

Select this component when a single IC solution is required for both signal isolation and isolated power generation. Compare propagation delay and pulse width distortion specifications against other iCoupler devices if timing precision is critical. Evaluate the 20-SOIC footprint availability against PCB space limitations compared to smaller packages.

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 management functions. Other variants in the family may differ in channel count or data rate but share the underlying magnetic coupling architecture.

Replacement Considerations

ADUM4470CRIZ-RL is listed as a parameter-equivalent substitute. Verify functional equivalence regarding the integrated DC/DC controller and channel configuration before substitution.

FAQ

Does the ADUM4472CRIZ include an isolated power supply?

Yes, it integrates an isolated DC/DC power supply controller to generate power for the receiver side.

What is the isolation voltage rating?

The device provides 5000Vrms basic isolation between the input and output sides.