ADUM321N0BRZ

Overview

The ADUM321N0BRZ is a dual-channel digital isolator from the ADuM321N series, utilizing iCoupler technology. It features a 5700 Vrms isolation rating and supports data rates up to 150 Mbps. The device operates on supply voltages between 2.25 V and 5.5 V with a maximum propagation delay of 10 ns at 5 V. It includes fault-safe low output options and meets AEC-Q100 automotive standards. Packaged in an 8-pin wide SOIC (SOIC_IC) with a 7.50 mm width.

Feature Summary

• High common-mode transient immunity for robust noise rejection
• Integrated magnetic coupling technology for compact design
• Fault-safe output configuration for system protection
• Automotive-grade qualification for reliability

Applications

• Inverter control systems
• Industrial fieldbus isolation
• PWM controller signal isolation
• General-purpose multi-channel isolation

Procurement Notes

Verify the specific suffix 'N0' indicates the fault-safe low output state and 'W' or 'IC' package variant during sourcing. Confirm AEC-Q100 compliance requirements against project specifications. Check current availability status as distribution may be limited. Ensure the 8-pin wide SOIC footprint matches the PCB layout constraints before finalizing procurement orders.

Selection Notes

Select this component when high isolation voltage and automotive reliability are required. The N0 suffix provides a defined low state upon power loss, suitable for safety-critical interfaces. Compare performance against standard SOIC packages if board space permits narrower footprints. Verify that the 150 Mbps data rate aligns with the communication protocol speed requirements of the target application.

Part Context

This part belongs to the ADuM321N family of dual-channel digital isolators. It shares core iCoupler architecture with variants offering different isolation ratings and channel configurations. The series integrates CMOS logic with monolithic air-core transformer technology to provide bidirectional data transmission across electrical isolation barriers without external magnetics.

Replacement Considerations

Public confirmed substitute part numbers: ADUM321N0BRIZ-RL.