ADUM4471ARIZ-RL

Overview

The ADUM4471ARIZ-RL is a four-channel digital isolator from the ADuM447x series, utilizing iCoupler magnetic coupling technology. It integrates an isolated DC/DC converter to provide power across the isolation barrier. The device supports data rates up to 25 Mb/s with a maximum propagation delay of 60 ns. It operates within a supply voltage range of 3 V to 5.5 V and offers an insulation voltage of 5000 Vrms. The component is housed in a 20-pin SOIC package and functions reliably between -40°C and +105°C.

Feature Summary

• Integrates an isolated DC/DC converter for power delivery across the isolation barrier
• Utilizes iCoupler magnetic coupling technology for signal transmission
• Provides high common-mode transient immunity for noise rejection

Applications

• Industrial automation control systems
• Medical equipment requiring galvanic isolation
• Power metering and energy management interfaces

Procurement Notes

Verify the specific suffix 'RL' indicates reel packaging when sourcing. Confirm the manufacturer is Analog Devices Inc. Ensure the part meets RoHS compliance requirements for your region. Check datasheet revisions for any pinout or electrical specification updates before finalizing procurement.

Selection Notes

Select this component when a single-chip solution for both signal isolation and isolated power is required. It is suitable for applications needing four independent channels with high-speed data transfer. Consider the 20-SOIC footprint for PCB layout constraints. Verify that the integrated power converter meets the load requirements of the secondary side circuitry.

Part Context

This part belongs to the ADuM447x family of digital isolators. It combines four-channel data isolation with an integrated isolated power supply. The series is designed for robust performance in noisy environments where traditional optocouplers may degrade over time.

FAQ

Does the ADUM4471ARIZ-RL include an isolated power supply?

Yes, it integrates an isolated DC/DC converter to provide power across the isolation barrier.

What is the maximum data rate supported by this isolator?

The device supports data rates up to 25 Mb/s.