ADM2486BRWZ-REEL

Overview

The ADM2486BRWZ-REEL is a half-duplex, isolated RS-485 transceiver utilizing Analog Devices iCoupler magnetic coupling technology. It integrates three-channel isolation with differential drivers and receivers in a single package. The device supports data rates up to 20 Mb/s and operates within an insulation voltage of 2500 Vrms. Power supply ranges from 2.7 V to 5.5 V for logic and isolated bus sides. It functions in industrial temperatures from -40°C to +85°C and is housed in a 16-pin SOIC-W package.

Feature Summary

• Integrates high-speed half-duplex RS-485 transceiver functionality with on-chip magnetic isolation barriers.
• Provides bidirectional data communication over balanced transmission lines while maintaining galvanic isolation between logic and bus domains.
• Includes built-in protection mechanisms such as short-circuit current limiting and thermal shutdown to prevent excessive power dissipation during bus contention.

Applications

• Isolated RS-485 and RS-422 interface circuits
• PROFIBUS network nodes
• Industrial fieldbus systems
• Multi-point data transmission networks

Procurement Notes

Verify the specific suffix REEL against the required packaging format, as tube variants exist. Confirm that the component meets RoHS compliance requirements for your region, noting that some listings indicate non-compliance status. Ensure the supplier provides valid traceability documentation for this Analog Devices part number before finalizing orders.

Selection Notes

Select this component when designing systems requiring robust galvanic isolation for RS-485 communication at speeds up to 20 Mbps. It is suitable for applications needing ANSI EIA/TIA-485-A and ISO 8482:1987(E) compliance. Consider the dual-supply architecture where the bus side requires an isolated power source distinct from the logic side.

Part Context

This part belongs to the ADM2486 series of isolated transceivers. It shares the core iCoupler technology with related models like the ADM2485, though it differs in protocol support and channel configuration. The REEL suffix indicates tape-and-reel packaging, distinguishing it from tube-packaged equivalents like the ADM2486BRW.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. Verify compatibility with existing designs if considering alternative isolated RS-485 transceivers, as pinouts and isolation specifications may vary significantly across manufacturers.