Analog Devices Inc./Maxim Integrated

MAX485ECSA  

Drivers, Receivers, Transceivers

MAX485ECSA Description

The MAX485ECSA from Analog Devices Inc./Maxim Integrated is a half-duplex RS-422/RS-485 transceiver designed for robust differential communication in industrial and commercial applications. Housed in an 8-pin SOIC package, this surface-mount IC integrates one driver and one receiver, supporting data rates up to 2.5 Mbps. Operating within a 4.75V to 5.25V supply range, it ensures reliable performance in noisy environments, thanks to its 70 mV receiver hysteresis for enhanced noise immunity. The device is RoHS-compliant and classified under ECCN EAR99, making it suitable for export-controlled applications.

MAX485ECSA Features

• Half-Duplex Operation: Enables bidirectional communication over a single twisted-pair line, reducing wiring complexity.
• High-Speed Data Transmission: Supports 2.5 Mbps, ideal for industrial automation and high-speed control systems.
• Wide Supply Range: Operates at 4.75V–5.25V, compatible with standard 5V logic systems.
• Enhanced Noise Immunity: 70 mV receiver hysteresis minimizes errors in electrically noisy environments.
• Robust Protocol Support: Compatible with RS-422 and RS-485 standards, ensuring interoperability.
• Surface-Mount Design: 8-SOIC package facilitates compact PCB layouts.
• Industrial Temperature Range: Rated for 0°C to 70°C, suitable for moderate environmental conditions.

MAX485ECSA Applications

• Industrial Automation: Used in PLCs, motor control, and sensor networks for reliable long-distance communication.
• Building Automation: Ideal for HVAC systems, lighting control, and security systems requiring noise-resistant data links.
• Telecom Infrastructure: Deployed in base stations and network equipment for robust signal transmission.
• Medical Devices: Ensures error-free data exchange in diagnostic equipment and patient monitoring systems.
• Renewable Energy Systems: Facilitates communication in solar inverters and wind turbine controllers.

Conclusion of MAX485ECSA

The MAX485ECSA is a versatile, high-performance transceiver tailored for noise-immune, half-duplex RS-485/RS-422 communication. Its 2.5 Mbps data rate, wide supply tolerance, and industrial-grade robustness make it a preferred choice for applications demanding reliability in electrically challenging environments. While now obsolete, its legacy in industrial and automation systems underscores its enduring value. Engineers seeking modern alternatives may explore newer Maxim/Analog Devices offerings with enhanced features like wider temperature ranges or lower power consumption.

MAX485ECSA Documents

Download datasheets and manufacturer documentation for MAX485ECSA

Datasheets :

MAX481E-491E, MAX1487E      

Part Numbering Guide :

Part Numbering System      

Application Notes :

FAQs about Interface, RS-232, and RS-485 Circuits       Reduce the Chances of Human Error: Part 2, Super Amps and Filters for Analog Interface       RS-485 Data Interface Gives Isolated, Full-Duplex Operation       Oops...Practical ESD Protection vs. Foolhardy Placebos      

PCN Obsolescence/ EOL :

Mult Dev OBS 04/Sep/2015      

Environmental Information :

Maxim Integrated RoHS Cert       Maxim Integrated REACH