MAX1487CSA+T

Drivers, Receivers, Transceivers Overview

The MAX1487CSA+T is a low-power, half-duplex RS-485/RS-422 transceiver manufactured by Analog Devices Inc./Maxim Integrated. It integrates one driver and one receiver within an 8-pin SO package. The device operates on a single 5V supply (4.75V to 5.25V) with a typical quiescent current of 230µA. It supports data transmission rates up to 2.5Mbps without slew-rate limiting. The receiver input impedance is 1/4 unit load, allowing up to 128 transceivers on the bus. Operating temperature range for this specific suffix is -40°C to +85°C.

Drivers, Receivers, Transceivers Feature Summary

• Half-duplex communication capability designed for bidirectional data transfer on multipoint bus lines.
• High node capacity enabled by 1/4-unit-load receiver input impedance supporting up to 128 devices.
• Integrated thermal shutdown and short-circuit current limiting protect against excessive power dissipation.

Drivers, Receivers, Transceivers Applications

• Industrial-control local area networks
• Low-power RS-485 communication systems
• EMI-sensitive applications requiring high-speed data transmission

Drivers, Receivers, Transceivers Procurement Notes

Verify the component authenticity through official manufacturer channels or authorized distributors. Confirm that the ordering suffix matches the required temperature grade (-40°C to +85°C) and package type (SOIC-8). Ensure compliance with relevant environmental standards such as RoHS before finalizing procurement orders.

Drivers, Receivers, Transceivers Selection Notes

Select the MAX1487CSA+T when designing systems requiring high-speed data rates up to 2.5Mbps on RS-485 buses. This part is suitable for applications needing high node density due to its quarter-unit-load specification. Ensure the design environment falls within the specified operating temperature range and voltage constraints.

Drivers, Receivers, Transceivers Part Context

This component belongs to the MAX481/MAX483/MAX485/MAX487–MAX491/MAX1487 family of low-power transceivers. Unlike slew-rate-limited variants in the same series, the MAX1487 allows faster data transmission speeds. It shares pin compatibility and functional similarities with other half-duplex transceivers in the Maxim portfolio.

Drivers, Receivers, Transceivers Replacement Considerations

Direct replacements include MAX1487ESA+T for extended temperature grades or MAX487CSA+T if lower data rates are acceptable. Verify interface compatibility and electrical characteristics before substituting.