ADUM321N0WBRIZ

Overview

The ADUM321N0WBRIZ is a dual-channel digital isolator from Analog Devices, utilizing iCoupler technology for robust signal transmission. It features a 5700Vrms isolation voltage and supports data rates up to 150Mbps with a maximum propagation delay of 10ns. The device operates on supply voltages ranging from 2.25V to 5.5V and includes fault-safe output options. It is qualified under AEC-Q100 standards for automotive applications and functions within a temperature range of -40°C to +125°C.

Feature Summary

• High common-mode transient immunity of 180kV/µs typical value
• Low dynamic power consumption at 1Mbps per channel
• Capacitive coupling technology eliminates LED lifetime concerns
• Independent data channels with configurable unidirectional paths

Applications

• Inverter control systems
• Industrial fieldbus isolation
• PWM controller signal isolation
• Power supply feedback loops

Procurement Notes

Verify the specific suffix 'N0' indicates the fault-safe low output configuration as documented in the official datasheet. Confirm that the SOIC-8 package matches the required footprint for the target PCB design. Ensure compliance with AEC-Q100 automotive qualification requirements if the application demands it. Check RoHS status and moisture sensitivity level before storage and reflow soldering processes.

Selection Notes

Select this component when high-speed data transfer up to 150Mbps is required alongside significant isolation barriers. Consider the 5700Vrms rating for applications demanding enhanced safety margins. Evaluate the 2.25V to 5.5V operating range for compatibility with various logic levels. The AEC-Q100 qualification makes it suitable for automotive environments requiring extended temperature operation.

Part Context

This part belongs to the ADuM321N series of dual-channel digital isolators. It represents an evolution in iCoupler technology, offering superior performance compared to traditional optocouplers by removing light-emitting diodes. The series provides independent channels with guaranteed data rates and low propagation delays, addressing noise immunity challenges in industrial and automotive settings.

Replacement Considerations

The ADUM321N0WBRIZ-RL serves as the reel-based equivalent for automated assembly. Verify pinout compatibility and electrical specifications against alternative isolators if sourcing constraints exist. Ensure any substitute maintains the required 5700Vrms isolation rating and AEC-Q100 certification.