ADUM1402ARWZ

Overview

The ADUM1402ARWZ is a quad-channel digital isolator utilizing Analog Devices iCoupler technology, which integrates high-speed CMOS logic with monolithic air-core transformer coils. This component provides four independent signal paths in a single package, offering superior performance compared to traditional optocouplers by eliminating issues related to current transfer ratio and non-linear transmission functions. It operates within a supply voltage range of 2.7 V to 5.5 V and supports data rates up to 1 Mb/s. The device features a propagation delay of 65 ns typical and maintains an isolation voltage of 2500 Vrms.

Feature Summary

• Integrates high-speed CMOS technology with monolithic air-core transformers for robust signal isolation
• Provides unidirectional signal transmission across four independent channels
• Delivers high common-mode transient immunity to ensure reliable operation in noisy environments
• Eliminates the need for external discrete components typically required with optical isolators

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 circuits
• Inverter drives and motor control systems

Procurement Notes

Verify the specific suffix (e.g., ARWZ vs. ARWZ-RL) to confirm the correct packaging format, such as tube or reel, as this affects handling and assembly processes. Ensure compatibility with RoHS3 standards if environmental compliance is required for your manufacturing line. Cross-reference the datasheet revision date to confirm that all electrical parameters match your design specifications before finalizing procurement orders.

Selection Notes

Select this component when a quad-channel solution is required to reduce board space and simplify layout compared to using multiple dual-channel isolators. Consider the 2500 Vrms isolation rating against the system's working voltage requirements. Evaluate the 1 Mb/s data rate capability to ensure it meets the timing constraints of the communication interface being isolated. Check the SOIC-16 package dimensions for PCB footprint compatibility.

Part Context

This part belongs to the ADuM140x series of quad-channel digital isolators from Analog Devices. It shares the same core iCoupler architecture and pinout structure with variants like the ADUM1400 and ADUM1401, differing primarily in channel configuration and internal connectivity. The series represents a shift from legacy optocoupler technologies toward integrated magnetic coupling solutions for improved reliability and lower power consumption.

Replacement Considerations

Public confirmed substitute part numbers include ADUM1402A.