ADUM1281WCRZ-RL7

Overview

The ADUM1281WCRZ-RL7 is a dual-channel digital isolator from Analog Devices, utilizing iCoupler magnetic coupling technology. It provides bidirectional data transmission with a maximum data rate of 100 Mb/s and an insulation voltage of 3000 Vrms. The device operates within a supply voltage range of 3.0V to 5.5V and features a propagation delay of 50 ns. It is housed in an 8-pin SOIC package and supports an operating temperature range from -40°C to +125°C. The component holds AEC-Q100 qualification for automotive applications.

Feature Summary

• Integrates high-speed CMOS logic with monolithic air-core transformer technology for robust signal isolation.
• Provides bidirectional communication channels independent of each other for flexible circuit design.
• Offers superior performance compared to traditional optocouplers with tight channel-to-channel matching.

Applications

• Automotive electronic control units requiring isolated communication interfaces
• Industrial systems needing galvanic isolation for sensor data acquisition
• Medical equipment requiring safety-certified signal isolation

Procurement Notes

Verify the specific suffix 'WCRZ' against official Analog Devices documentation to confirm the exact temperature grade and packaging configuration. Ensure compatibility with the target application's voltage levels and isolation requirements before procurement.

Selection Notes

Select this component when bidirectional data transfer is required across an isolation barrier. Consider the 100 Mb/s data rate and 3000 Vrms insulation rating as key differentiators. Verify that the 8-SOIC package fits the PCB layout constraints and that the wide operating temperature range meets environmental specifications.

Part Context

This part belongs to the ADUM1281 series of dual-channel digital isolators. It is designed to replace legacy optocoupler solutions in modern designs, offering smaller size and lower power consumption while maintaining high reliability and performance standards for critical isolation applications.

Replacement Considerations

Check Analog Devices datasheets for direct pin-compatible alternatives within the ADUM128x family or cross-references from other manufacturers if availability is constrained.

FAQ

What is the maximum data rate supported by the ADUM1281WCRZ-RL7?

The device supports a maximum data rate of 100 Mb/s.

Is the ADUM1281WCRZ-RL7 suitable for automotive applications?

Yes, it is qualified under the AEC-Q100 standard for automotive use.