ADUM320N0BRZ

Overview

The ADUM320N0BRZ is a dual-channel digital isolator from Analog Devices, utilizing iCoupler technology to combine CMOS and air-core transformer capabilities. It features unidirectional data transmission with a maximum data rate of 150 Mbps and an isolation voltage of 5700 VRMS. The device operates on supply voltages ranging from 2.25 V to 5.5 V, ensuring compatibility with lower-voltage systems. Key electrical parameters include a maximum propagation delay of 10 ns at 5 V, pulse width distortion less than 3 ns, and channel matching within 3.0 ns. It provides high common-mode transient immunity of 180 kV/µs and supports operation across a temperature range of -40°C to +125°C.

Feature Summary

• Integrates robust dual-channel isolation using proprietary iCoupler technology for high-speed signal transmission.
• Provides enhanced system-level ESD protection meeting IEC 61000-4-2 standards across the isolation barrier.
• Offers fault-safe output configurations allowing predetermined states when input power is absent.
• Supports voltage translation between different supply domains on either side of the isolation barrier.

Applications

• Inverter control circuits
• Power supply monitoring and feedback loops
• Industrial fieldbus isolation interfaces
• PWM controller signal isolation

Procurement Notes

Verify the specific suffix BRZ indicates the SOIC_N package variant with 3000 VRMS isolation rating per safety certifications, distinct from WBRIZ variants. Confirm AEC-Q100 qualification status if automotive application is required. Check current availability as stock may be limited or subject to factory special orders. Ensure the ordering part number matches the required channel configuration and polarity settings.

Selection Notes

Select this component for applications requiring high-speed bidirectional or unidirectional isolation with strict timing constraints. The 150 Mbps data rate and low propagation delay make it suitable for demanding industrial communication protocols. Consider the 5700 VRMS basic insulation rating for primary-side isolation requirements. Evaluate the fault-safe options if system integrity depends on defined output states during power loss scenarios.

Part Context

This device belongs to the ADuM320N/ADuM321N series of dual-channel digital isolators. It represents a generation of isolators that replace traditional optocouplers by offering superior performance in speed, power consumption, and reliability. The series is designed for general-purpose isolation in noisy environments, providing a compact solution for modern electronic designs requiring galvanic separation.

Replacement Considerations

Public confirmed substitute part numbers are not explicitly listed in the provided documentation for direct replacement. Users should consult official Analog Devices resources for qualified alternatives. Verify pinout compatibility and electrical parameter equivalence before considering any cross-reference components.