ADUM4402ARWZ

Overview

The ADUM4402ARWZ is a quad-channel digital isolator from Analog Devices, 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 isolation 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 maximum pulse width distortion of 1000 ns. It functions reliably across an operating temperature range of -40°C to +105°C.

Feature Summary

• Quad-channel architecture with unidirectional signal paths
• High common-mode transient immunity for noisy environments
• CMOS-compatible logic levels for direct interface
• Enhanced electrostatic discharge protection capabilities

Applications

• Industrial automation control systems
• Medical equipment signal isolation
• Power electronics gate drive circuits
• Data acquisition system interfaces

Procurement Notes

Verify the specific suffix (e.g., ARWZ) against official datasheets to confirm package type and temperature grade. Confirm RoHS compliance status through manufacturer documentation. Ensure compatibility with existing PCB footprints for SOIC-16 packages. Validate supply chain authenticity through authorized distributors only.

Selection Notes

Select this component when high-speed bidirectional communication is not required, as it is unidirectional. Consider the 90 Mbps data rate limit for bandwidth requirements. Evaluate the 5000 Vrms isolation rating against system safety standards. Compare power consumption characteristics with alternative isolators if battery life is critical.

Part Context

This part belongs to the ADUM440x series of iCoupler digital isolators. It shares architectural similarities with the ADUM4401 but differs in channel configuration or pinout specifics. The series leverages on-chip transformer technology to replace traditional optocouplers, offering improved reliability and lower power consumption in industrial applications.

Replacement Considerations

The ADUM4401ARWZ is a related variant within the same family. Verify functional equivalence regarding channel count and directionality before substitution. Cross-reference pinouts and isolation ratings to ensure compatibility with existing circuit designs.