ADUM4401ARWZ

Overview

The ADUM4401ARWZ is a quad-channel digital isolator utilizing iCoupler magnetic coupling technology. It operates within a supply voltage range of 2.7 V to 5.5 V and supports data rates up to 90 Mb/s. The device provides 5000 Vrms insulation voltage and features enhanced ESD protection. Key electrical parameters include a typical propagation delay of 32 ns, rise/fall times of 3 ns, and a working supply current of 830 uA. It functions reliably across an operating temperature range of -40°C to +105°C and is housed in a 16-lead SOIC package.

Feature Summary

• Integrates four independent isolation channels using monolithic air core transformer technology for high-speed signal transmission.
• Provides enhanced electrostatic discharge (ESD) protection capabilities alongside standard magnetic coupling isolation.
• Supports unidirectional data flow with low power consumption suitable for general-purpose interface applications.

Applications

• General-purpose digital isolation in industrial communication systems
• Isolating microcontroller interfaces in noisy environments
• Signal isolation for sensor networks requiring high common-mode transient immunity

Procurement Notes

Verify the specific suffix (e.g., RL) against official Analog Devices documentation to confirm packaging configuration such as reel or cut tape. Ensure the order matches the exact part number including temperature grade and package variant. Cross-reference datasheet revisions to confirm pinout and electrical characteristics remain consistent with design requirements before finalizing procurement.

Selection Notes

Select this component when four isolated channels are required without integrated DC/DC converters. It is appropriate for designs needing 5 kV RMS isolation with moderate data rates up to 90 Mb/s. Consider the 830 uA supply current for power-sensitive applications. Verify that the 16-SOIC package fits the board layout constraints and thermal management strategy.

Part Context

This part belongs to the ADuM4401 series of quad-channel digital isolators from Analog Devices. It represents the standard non-isolated-power variant within the broader ADuM family, distinguishing itself from models like the ADUM5404 which include integrated DC/DC converters. The ARWZ designation indicates the automotive-grade temperature range and SOIC-16 package form factor.

Replacement Considerations

Direct functional substitutes within the same series include the ADUM4401ARWZ-RL for identical specifications with reel packaging. Other variants in the ADuM4401 family may offer different packaging options but maintain the same core isolation architecture and electrical performance metrics.