ADUM1286WBRZ-RL7

Overview

The ADUM1286WBRZ-RL7 is a dual-channel digital isolator from Analog Devices, utilizing magnetic coupling technology for signal transmission. It features bidirectional data flow with a maximum data rate of 25 Mb/s and an insulation voltage rating of 3000 Vrms. The device operates within a supply voltage range of 3.135 V to 5.5 V, drawing a typical operating current of 15 mA per channel. It exhibits a propagation delay of 35 ns and supports an extended industrial temperature range from -40°C to +125°C. Packaged in an SOIC-8 surface-mount format, this component is supplied in reel packaging.

Feature Summary

• Provides galvanic isolation between circuits using on-chip transformer-based magnetic coupling technology.
• Supports bidirectional data transmission across two independent channels simultaneously.
• Ensures high-voltage safety with a reinforced insulation voltage rating of 3000 Vrms.

Applications

• Industrial automation systems requiring isolated communication interfaces
• Medical equipment needing patient isolation barriers
• Power electronics control circuits with ground potential differences

Procurement Notes

Verify the specific suffix RL7 indicates reel packaging configuration when sourcing. Confirm availability status as distribution channels may report limited stock or restricted supply conditions. Ensure the SOIC-8 package footprint matches the target PCB design constraints before finalizing procurement orders.

Selection Notes

Select this component when bidirectional data transfer is required alongside high isolation voltage ratings. Compare against unidirectional variants if only single-direction signaling is needed to optimize power consumption. Validate that the 25 Mb/s data rate meets system timing requirements while ensuring the 15 mA current draw fits the thermal budget.

Part Context

This part belongs to the ADUM1286 series of digital isolators designed for robust signal integrity in noisy environments. It serves as a replacement for older optocoupler technologies by offering smaller form factors and lower power consumption. The series is AEC-Q100 qualified for automotive applications, ensuring reliability under stringent operational conditions.

Replacement Considerations

Check ADUM1286ARZ-RL7 for unidirectional alternatives with lower data rates. Consider ADUM1285BRZ for similar performance but different packaging options. Verify pin compatibility with existing designs when substituting other dual-channel isolators.