MAX1487ECSA+T

Drivers, Receivers, Transceivers Overview

The MAX1487ECSA+T is a low-power, half-duplex RS-485/RS-422 transceiver manufactured by Analog Devices Inc./Maxim Integrated. It features one driver and one receiver housed in an 8-pin SO package with a tape-and-reel (T) suffix for surface-mount assembly. The device supports data rates up to 2.5Mbps with an unrestricted slew rate. It operates on a single +5V supply (4.75V to 5.25V) within an industrial temperature range of 0°C to +70°C. Key electrical characteristics include ±15kV ESD protection on all pins, a typical no-load supply current of 230µA, and a maximum power dissipation of 471mW in the SO-8 package.

Drivers, Receivers, Transceivers Feature Summary

• Provides ±15kV electrostatic discharge protection on driver outputs and receiver inputs without latchup.
• Features quarter-unit-load receiver input impedance allowing up to 128 transceivers on the bus.
• Includes thermal shutdown circuitry that places driver outputs into a high-impedance state during excessive power dissipation.
• Receiver input has a fail-safe feature guaranteeing a logic-high output if the input is open circuit.

Drivers, Receivers, Transceivers Applications

• Low-Power RS-485 Transceivers
• Low-Power RS-422 Transceivers
• Industrial-Control Local Area Networks

Drivers, Receivers, Transceivers Procurement Notes

Verify the ordering suffix 'T' corresponds to the tape-and-reel packaging format required for automated surface-mount assembly. Confirm the 'C' designation indicates the commercial temperature range of 0°C to +70°C. Ensure the component source provides valid traceability documentation for this specific Analog Devices part number.

Drivers, Receivers, Transceivers Selection Notes

Select this model when a half-duplex interface supporting up to 2.5Mbps is required alongside robust ESD immunity. The unrestricted slew rate distinguishes it from slew-rate-limited variants like the MAX487E. Verify that the application environment remains within the specified 0°C to +70°C operating range for optimal performance.

Drivers, Receivers, Transceivers Part Context

This component belongs to the MAX481E/MAX483E/MAX485E/MAX487E–MAX491E/MAX1487E family of low-power transceivers designed for harsh environments. It shares pin compatibility with standard non-'E' versions but adds enhanced ESD protection structures. The device is intended for bidirectional data communications on multipoint bus transmission lines.

Drivers, Receivers, Transceivers Replacement Considerations

Publicly confirmed substitutes include other members of the same family such as MAX481E, MAX483E, MAX485E, and MAX487E, provided their specific slew-rate and temperature specifications align with the design requirements.