MAX485CSA+

Drivers, Receivers, Transceivers Overview

The MAX485CSA+ is a low-power, half-duplex RS-485 and RS-422 transceiver manufactured by Analog Devices Inc. (formerly Maxim Integrated). It integrates one driver and one receiver within an 8-pin SOIC package. The device operates from a single +5V supply with a typical quiescent current of 300µA. It supports data transmission rates up to 2.5Mbps with unrestricted slew rates. Key electrical features include short-circuit current limiting, thermal shutdown protection for the driver, and a fail-safe receiver input that guarantees a logic-high output when the input is open circuit.

Drivers, Receivers, Transceivers Feature Summary

• Integrates one driver and one receiver for half-duplex communication
• Features fail-safe receiver inputs to guarantee high output during open-circuit conditions
• Includes short-circuit current limiting and thermal shutdown protection for driver overload prevention

Drivers, Receivers, Transceivers Applications

• Low-Power RS-485 Transceivers
• Low-Power RS-422 Transceivers
• Level Translators
• Transceivers for EMI-Sensitive Applications
• Industrial-Control Local Area Networks

Drivers, Receivers, Transceivers Procurement Notes

Verify component authenticity through authorized distributors or direct manufacturer channels. Confirm RoHS compliance status via official documentation. Ensure the ordering suffix matches the required temperature range and packaging specifications. Cross-reference datasheet revisions to validate pinout and electrical characteristics against specific design requirements.

Drivers, Receivers, Transceivers Selection Notes

Select this component for applications requiring standard RS-485/RS-422 half-duplex communication at speeds up to 2.5Mbps. It is suitable for systems operating on a single 5V supply where low power consumption is prioritized. Choose this part over slew-rate-limited variants if higher speed transmission is necessary and EMI constraints are manageable without reduced edge rates.

Drivers, Receivers, Transceivers Part Context

The MAX485 belongs to a family of low-power transceivers designed for bidirectional data communications on multipoint bus transmission lines. This series includes variations such as the MAX481, MAX483, and MAX487, which differ in slew rate limitations, shutdown capabilities, and unit load configurations. The MAX485 specifically provides unrestricted slew rates for faster data transmission compared to the 250kbps limited models.

Drivers, Receivers, Transceivers Replacement Considerations

MAX485ESA+