ADUM1285WCRZ

Overview

The ADUM1285WCRZ is a dual-channel digital isolator from Analog Devices, utilizing iCoupler magnetic coupling technology. It features bidirectional signal transmission with a data rate of 100 Mb/s and an isolation voltage of 3000 Vrms. The device operates within a supply voltage range of 3.135 V to 5.5 V, consuming approximately 20 mA of working power current. It exhibits a propagation delay of 24 ns and is qualified under AEC-Q100 standards for automotive applications. The component supports an operating temperature range from -40°C to +125°C and is housed in an SOIC-8 surface-mount package.

Feature Summary

• Bidirectional signal transmission capability for two independent channels
• High-speed data transfer at 100 Mb/s using magnetic coupling
• Automotive qualification compliant with AEC-Q100 standards

Applications

• Automotive electronic control units requiring robust isolation
• Industrial communication interfaces needing high-speed data transfer
• Motor drive circuits with bidirectional control signals

Procurement Notes

Verify the specific suffix 'WCRZ' to ensure the reel packaging format matches assembly requirements. Confirm AEC-Q100 qualification status if the application demands automotive-grade reliability. Cross-reference the bidirectional polarity against system design needs, as this differs from unidirectional variants. Ensure the SOIC-8 footprint aligns with the PCB layout specifications before finalizing procurement orders.

Selection Notes

Select this model when bidirectional communication is required between isolated domains. The 100 Mb/s speed suits high-frequency digital interfaces unlike lower-speed alternatives. The wide operating temperature range supports harsh environments. Verify that the 3000 Vrms isolation rating meets safety standards for the specific voltage barriers present in the target circuit architecture.

Part Context

This component belongs to the ADUM1285 series of iCoupler digital isolators. It shares the SOIC-8 package and magnetic coupling technology with other members but distinguishes itself through bidirectional channel configuration and higher 100 Mb/s data rates compared to standard 25 Mb/s variants. The series emphasizes compact size and low power consumption for modern interface applications.

Replacement Considerations

ADUM1285ARZ serves as a tube-packaged alternative with identical electrical characteristics. ADUM1285BRZ offers similar performance but typically features unidirectional channels rather than bidirectional ones. ADUM1285WCRZ-RL7 provides the same functional specifications in a different reel quantity configuration.