ADUM2281BRIZ-RL

Overview

The ADUM2281BRIZ-RL is a high-performance, dual-channel digital isolator from Analog Devices, utilizing iCoupler magnetic coupling technology. It provides robust signal isolation with a rated insulation voltage of 5000Vrms and a common-mode transient immunity (CMTI) of 25kV/µs. The device supports data rates up to 25Mbps with a maximum propagation delay of 50ns and pulse width distortion under 10ns. Operating on a single supply voltage between 2.7V and 5.5V, it features unidirectional channels in a 16-pin SOIC package. Designed for industrial and automotive environments, it operates within a temperature range of -40°C to 125°C.

Feature Summary

• High-speed data transmission capability supporting up to 25Mbps data rates
• Robust isolation performance with 5000Vrms insulation voltage and 25kV/µs CMTI
• Low propagation delay and minimal pulse width distortion for precise timing
• Wide operating temperature range suitable for harsh industrial and automotive conditions

Applications

• Industrial automation systems requiring galvanic isolation
• Automotive electronic control units (ECUs)
• Medical equipment with safety isolation requirements
• Power metering and energy management systems

Procurement Notes

Verify the specific suffix 'BRIZ' against official Analog Devices documentation to confirm the exact temperature grade and packaging configuration. Ensure compatibility with your system's voltage levels and isolation requirements. Check for RoHS compliance status and moisture sensitivity level before integration. Confirm availability through authorized distributors as supply may vary.

Selection Notes

Select this component when high-speed bidirectional or unidirectional isolation is needed with stringent CMTI requirements. Compare propagation delay and power consumption against other iCoupler variants if lower speed suffices. Ensure the 16-SOIC package fits your PCB layout constraints. Validate that the 5000Vrms rating meets your application's safety standards.

Part Context

This part belongs to the ADuM228x series of dual-channel digital isolators. It shares the iCoupler architecture with other members like the ADUM2281ARIZ-RL but differs in specified performance parameters such as data rate and temperature range. The series is designed to replace traditional optocouplers in space-constrained applications.

Replacement Considerations

The ADUM2281ARIZ-RL is a related variant within the same family. Verify if the ARIZ version's specifications meet your design needs as a potential substitute. Cross-reference datasheets for differences in propagation delay, data rate, and operating temperature to ensure functional equivalence.