ADUM121N0BRZ

Overview

The ADUM121N0BRZ is a dual-channel digital isolator from Analog Devices, utilizing iCoupler magnetic coupling technology. It features a data rate of 150 Mb/s and operates within a supply voltage range of 1.7 V to 5.5 V. The device provides 3000 Vrms isolation voltage and supports unidirectional signal transmission with one forward and one reverse channel. Key electrical parameters include a maximum propagation delay of 13 ns at 5 V and 15 ns at 1.8 V, typical high common-mode transient immunity of 100 kV/μs, and an operating temperature range from -40°C to +125°C.

Feature Summary

• High common-mode transient immunity for robust noise rejection
• iCoupler magnetic coupling technology for EMC robustness
• Low propagation delay for high-speed data transmission

Applications

• Industrial automation systems requiring galvanic isolation
• Medical equipment needing enhanced safety isolation
• Power metering applications with high voltage separation

Procurement Notes

Verify the specific suffix (N0) against the latest official datasheet to confirm pinout and configuration compatibility. Check current availability status as distribution may be limited or subject to factory order constraints. Ensure RoHS compliance documentation is obtained directly from Analog Devices or authorized distributors prior to final procurement decisions.

Selection Notes

Select this component when bidirectional communication is not required, as it supports only unidirectional channels. Compare performance metrics such as propagation delay and CMTI against alternative isolators if system timing or noise immunity requirements exceed standard specifications. Confirm package dimensions match the PCB layout constraints for the SOIC-8 footprint.

Part Context

This part belongs to the ADuM121N series of dual-channel digital isolators. It shares architectural similarities with the ADUM120N but differs in channel directionality. The series leverages Analog Devices' proprietary iCoupler technology to provide isolation without external magnetics, distinguishing it from optical or capacitive isolator families.

Replacement Considerations

The ADUM120N0BRZ is a related variant within the same family, offering bidirectional channels instead of unidirectional ones. Verify channel direction requirements before substitution. Other members of the ADuM12xN series may offer different isolation voltages or channel counts.