ADM2486BRW

Overview

The ADM2486BRW is a half-duplex, isolated RS-485 transceiver utilizing Analog Devices iCoupler magnetic coupling technology. It operates on a 2.7 V to 5.5 V supply with a data rate of 20 Mb/s and provides 2500 Vrms isolation. The device features bidirectional communication in a 16-pin SOIC package, supporting industrial temperatures from -40°C to +85°C.

Feature Summary

• Integrates three-channel digital isolators with differential line drivers and receivers using iCoupler technology
• Provides high common-mode transient immunity exceeding 25 kV/μs for robust signal integrity
• Includes receiver open-circuit fault protection and thermal shutdown capabilities

Applications

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

Procurement Notes

Verify current availability status as the component may be discontinued or subject to restricted distribution channels. Confirm RoHS compliance details and specific packaging quantities directly with authorized distributors prior to ordering. Ensure design-in compatibility with existing system voltage levels and isolation requirements.

Selection Notes

Select this component for applications requiring high-speed bidirectional data transfer over balanced transmission lines. It is suitable for designs needing integrated isolation without external optocouplers. Consider the 16-pin wide SOIC footprint and industrial temperature range when evaluating board space and environmental constraints.

Part Context

This part belongs to the ADM2486 series of isolated transceivers. It represents a solution for replacing traditional optocoupler-based designs with smaller, lower-power magnetic isolation alternatives. The series supports standard RS-485 protocols while offering enhanced safety certifications and reliability metrics.

Replacement Considerations

ADM2486BRWZ is a verified lead-free variant within the same functional family. Verify pinout compatibility and insulation ratings when substituting between variants.