ADUM4401ARIZ

Overview

The ADUM4401ARIZ is a quad-channel digital isolator from Analog Devices, utilizing iCoupler magnetic coupling technology. It provides 5000Vrms isolation with a common-mode transient immunity of 25kV/µs and a data rate of 10Mbps. The device features unidirectional channels in a 3/1 input-output configuration. Electrical parameters include a maximum propagation delay of 50ns, pulse width distortion of 3ns, and typical rise/fall times of 2.5ns. It operates on a 3V to 5.5V supply within a -40°C to 105°C temperature range.

Feature Summary

• Integrates high-speed CMOS logic with single-chip air-core transformer technology for robust signal transmission.
• Provides superior performance compared to traditional optocouplers and other integrated couplers.
• Offers high common-mode transient immunity to maintain signal integrity in noisy environments.

Applications

• Industrial automation systems requiring galvanic isolation
• Medical equipment needing reliable signal separation
• Power electronics control circuits

Procurement Notes

Verify the specific suffix 'ARIZ' against the official datasheet to confirm package dimensions and tape-and-reel specifications. Ensure compatibility with the target PCB footprint for the 16-SOIC-IC package. Confirm RoHS3 compliance status for the specific manufacturing lot before integration into regulated assemblies.

Selection Notes

Select this component when a quad-channel solution with 5000Vrms isolation is required. The 10Mbps data rate suits moderate-speed applications. Consider the 3/1 channel split if asymmetric I/O isolation is needed. Verify that the 50ns propagation delay meets system timing constraints.

Part Context

This part belongs to the ADuM440x series of digital isolators. It represents a shift from optical isolation to magnetic coupling, offering longer life expectancy and better thermal stability. The series is designed for general-purpose isolation in demanding industrial and commercial environments.

Replacement Considerations

Public confirmed substitutes include ADUM4401BRIZ and ADUM4401CRIZ. Verify pinout and electrical characteristics match before substitution.

FAQ

What is the isolation voltage rating?

The device supports 5000Vrms isolation voltage.

How many channels does it have?

It contains four independent digital isolation channels.