ADUM1286WARZ

Overview

The ADUM1286WARZ is a dual-channel digital isolator from Analog Devices, utilizing iCoupler magnetic coupling technology. It provides bidirectional data transmission with a maximum data rate of 100 Mb/s and an isolation voltage of 3000 Vrms. The device operates within a supply voltage range of 3.135 V to 5.5 V, consuming typical power supply currents of 15 mA per channel. It features a propagation delay of 50 ns and is housed in an 8-lead SOIC package. The component is qualified under AEC-Q100 standards and supports an operating temperature range from -40°C to +125°C.

Feature Summary

• Bidirectional signal transmission capability for flexible circuit design
• High common-mode transient immunity ensuring reliable operation in noisy environments
• Integrated magnetic coupling technology eliminating the need for external transformers

Applications

• Industrial automation systems requiring galvanic isolation
• Medical equipment needing high-voltage safety isolation
• Power management circuits for isolated communication interfaces

Procurement Notes

Verify the specific suffix 'W' indicates the wider SOIC-8 package variant compatible with standard surface-mount assembly processes. Confirm that the AEC-Q100 qualification meets automotive reliability requirements if applicable. Ensure the bidirectional nature aligns with the intended signal flow direction in the target application schematic before finalizing procurement orders.

Selection Notes

Select this component when bidirectional data transfer at speeds up to 100 Mb/s is required across a 3000 Vrms barrier. Compare against unidirectional variants like the ADUM1280ARZ if only one-way communication is needed. Consider the higher current consumption relative to lower-speed models when evaluating thermal constraints and power budget limitations in the final system design.

Part Context

This part belongs to the ADUM1286 series of iCoupler digital isolators. It shares the same functional architecture as other members but is distinguished by its bidirectional channel configuration. The series utilizes proprietary silicon dioxide isolation technology to provide robust electrical isolation between different ground domains.

Replacement Considerations

The ADUM1286ARZ serves as a direct alternative offering identical functionality but packaged in the narrower SOIC-8 format. Verify footprint compatibility on the PCB layout before substituting, as the pin spacing differs between the W and non-W suffix packages.