ADUM2401ARWZ

Overview

The ADUM2401ARWZ is a quad-channel digital isolator from Analog Devices, utilizing iCoupler magnetic coupling technology. It provides four independent channels with a unidirectional signal flow configuration of three inputs and one output. The device operates within a supply voltage range of 2.7 V to 5.5 V and supports data rates up to 1 Mbps. Key electrical specifications include a maximum propagation delay of 100 ns, a minimum common-mode transient immunity (CMTI) of 25 kV/µs, and an isolation voltage rating of 5000 Vrms. It functions reliably across an industrial temperature range of -40°C to +105°C.

Feature Summary

• Integrates four isolated digital channels using proprietary iCoupler magnetic coupling technology for robust signal transmission.
• Provides high common-mode transient immunity to protect against noise in electrically noisy environments.
• Features precise timing characteristics with low pulse width distortion and channel-to-channel matching.
• Supports standard CMOS logic levels without requiring external components for basic operation.

Applications

• Industrial automation systems requiring galvanic isolation between control and power stages
• Medical equipment needing safe patient isolation interfaces
• Power metering applications involving high-voltage sensing
• Inverter drives and motor control circuits

Procurement Notes

Verify the specific suffix 'ARWZ' to confirm the tube packaging format and A-grade temperature rating. Ensure compatibility with 16-SOIC footprint requirements during PCB layout. Confirm that the 1 Mbps data rate meets system timing constraints. Check for RoHS3 compliance status if required by regional regulations. Validate supply chain authenticity through authorized distributors.

Selection Notes

Select this component when four isolated bidirectional or unidirectional channels are needed at moderate data speeds. Compare against the ADUM2401BRWZ variant if higher data rates up to 10 Mbps are required. Consider the ADUM2402ARWZ if a symmetric 2-input/2-output channel configuration is preferred over the 3-input/1-output layout. Evaluate power consumption differences between variants for battery-operated designs.

Part Context

This part belongs to the ADuM240x family of quad-channel digital isolators. It shares the same package and pinout as other members like the ADUM2401BRWZ but differs in performance specifications such as data rate and propagation delay. The family utilizes CMOS technology to integrate transformer-based isolation on-chip.

Replacement Considerations

ADUM2401BRWZ offers equivalent functionality with increased data speed capabilities. ADUM2401ARIZ-RL provides identical electrical performance in a reel-packaged format suitable for automated assembly. Verify pin compatibility before substitution.