ADUM1286BRZ-RL7

Overview

The ADUM1286BRZ-RL7 is a dual-channel digital isolator from Analog Devices, utilizing iCoupler magnetic coupling technology. It operates within a supply voltage range of 3 V to 5.5 V and supports data rates up to 25 Mb/s. The device provides an isolation voltage of 3000 Vrms with bidirectional channel polarity. Key electrical parameters include a typical propagation delay of 35 ns, rise/fall times of 3 ns, and a maximum pulse width distortion of 40 ns. It functions reliably across an extended temperature range from -40°C to +125°C. Packaged in an SOIC-8 surface-mount format, this component delivers robust signal integrity for high-speed digital communication applications requiring galvanic isolation.

Feature Summary

• Implements iCoupler magnetic coupling technology for high-reliability signal transmission without optical components.
• Provides bidirectional data flow capability suitable for complex interface protocols.
• Features default low output state configuration for enhanced system safety during power-up or fault conditions.

Applications

• Industrial automation systems requiring isolated sensor interfaces
• Medical equipment needing patient-side galvanic isolation
• Power metering circuits with high-voltage separation requirements

Procurement Notes

Verify the specific suffix RL7 against official Analog Devices documentation to confirm reel packaging specifications. Confirm RoHS compliance status through current manufacturer datasheets as regulatory standards may evolve. Ensure the SOIC-8 footprint matches your PCB design constraints. Cross-reference the part number with authorized distributors to validate current availability and authenticity before finalizing procurement decisions.

Selection Notes

Select this component when bidirectional communication is required alongside 3 kV RMS isolation. Compare propagation delay and power consumption against unidirectional alternatives if directionality is not strictly necessary. Evaluate thermal performance within the -40°C to +125°C operating range for your specific enclosure environment. Consider the 25 Mb/s data rate limit relative to your system's bandwidth requirements.

Part Context

This part belongs to the ADUM1286 series of dual-channel digital isolators. It shares the SOIC-8 package and core iCoupler architecture with other variants in the family but differs in channel polarity and output configuration. The series is designed for general-purpose isolation in industrial and consumer electronics where space efficiency and high reliability are critical.

Replacement Considerations

Consult Analog Devices documentation for direct pin-compatible substitutes within the ADUM12xx series. Verify that any alternative maintains the 3000 Vrms isolation rating and bidirectional functionality. Check for differences in propagation delay and power consumption to ensure compatibility with existing timing and thermal budgets.