ADUM1280WBRZ

Overview

The ADUM1280WBRZ is a dual-channel digital isolator from Analog Devices, utilizing magnetic coupling technology to provide electrical isolation. It operates within a supply voltage range of 3.135 V to 5.5 V and supports bidirectional data transmission at a maximum data rate of 100 Mb/s. The device features an insulation voltage of 3000 Vrms and offers a typical propagation delay of 35 ns. Designed for surface-mount installation in an SOIC-8 package, it functions reliably across an operating temperature range from -40°C to +125°C.

Feature Summary

• Provides bidirectional signal isolation using magnetic coupling technology
• Supports high-speed data transmission up to 100 Mb/s
• Ensures robust electrical safety with 3000 Vrms insulation rating

Applications

• Industrial communication interfaces requiring galvanic isolation
• Medical equipment signal isolation circuits
• Power management systems with isolated feedback loops

Procurement Notes

Verify component authenticity through authorized distributors or direct manufacturer channels. Confirm the specific suffix matches the required bidirectional configuration and reel packaging format. Check current availability status as supply may be limited. Ensure compliance with RoHS directives and relevant automotive or industrial qualification standards if applicable to the end application.

Selection Notes

Select this component when bidirectional data flow is required between isolated domains. Compare against unidirectional variants like the ADUM1280BRZ if directionality constraints exist. Evaluate power consumption requirements against the specified operating current. Consider the 100 Mb/s data rate capability relative to system timing needs versus lower-speed alternatives.

Part Context

This part belongs to the ADUM1280 series of small form-factor digital isolators. It shares the same physical footprint and core isolation architecture as other members but differs in channel polarity and data rate specifications. The series is designed to replace bulky optocouplers in modern compact electronic designs.

Replacement Considerations

The ADUM1280BRZ serves as a functional substitute within the same family, offering identical packaging and isolation ratings. Note that the BRZ variant provides unidirectional channels rather than bidirectional support. Verify pin compatibility and signal direction requirements before substitution.