ADUM321N0BRIZ-RL

Overview

The ADUM321N0BRIZ-RL is a dual-channel digital isolator from Analog Devices, utilizing iCoupler technology. It features two independent channels with unidirectional data flow and a fault-safe low output configuration. The device supports a maximum data rate of 150 Mbps and operates within a supply voltage range of 2.25 V to 5.5 V on both sides. It provides an isolation voltage rating of 5700 VRMS and exhibits a typical common-mode transient immunity of 180 kV/µs. Propagation delay is typically 6.2 ns at 5 V operation, with a maximum of 10 ns.

Feature Summary

• High common-mode transient immunity for robust noise rejection
• Integrated fault-safe logic ensuring predictable output states
• Capacitive coupling technology eliminating LED lifetime concerns

Applications

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

Procurement Notes

Verify the specific suffix '0B' against official documentation to confirm the fault-safe low (N0) configuration and reel packaging format. Ensure compatibility with AEC-Q100 automotive qualification requirements if applicable to the target system design specifications.

Selection Notes

Select this component when high-speed bidirectional communication is not required, as it offers only unidirectional channels. The fault-safe low feature is critical for safety applications where input loss must trigger a defined safe state. Verify that the 5700 VRMS insulation rating meets the specific safety standards of the end application.

Part Context

This part belongs to the ADuM321N series of dual-channel digital isolators. It shares the same core architecture and performance metrics as the ADUM321N0WBRIZ variant, differing primarily in the specific ordering suffix which denotes package type or manufacturing lot details rather than functional changes.

Replacement Considerations

The ADUM321N0WBRIZ is a confirmed substitute within the same product family. Both parts share identical electrical characteristics and pinouts. Verify that the specific suffix differences do not impact the required packaging quantity or tape-and-reel specifications for the assembly process.