EmbeddedRelated.com
The 2026 Embedded Online Conference
    Parts    MAX3485ESA+
MAX3485ESA+

MAX3485ESA+

Maxim Integrated
Another Maxim low-power RS-485 transceiver option for designers wanting an alternate family offering.
Active9,416 in stock
Datasheet Digi-Key Compare Prices

Overview

The MAX3485ESA+ is a 3.3V, half-duplex RS-485/RS-422 transceiver. It is designed for robust data transmission in industrial environments, offering features like current-limiting and thermal shutdown for driver overload protection. This device allows for up to 32 transceivers on the bus.

Why Choose This Part

This transceiver operates from a 3.3V supply, making it suitable for modern low-power systems. Its 10Mbps data rate supports high-speed communication over RS-485/RS-422 buses. The integrated driver overload protection features enhance system reliability and fault tolerance.

Applications

Industrial Control Systems
Enabling reliable data communication between control units and field devices using the RS-485 protocol.
Building Automation
Facilitating communication in building management systems, HVAC, and security networks.
Point-of-Sale (POS) Systems
Connecting various peripheral devices in POS terminals over an RS-485 bus.
Security Systems
Interconnecting sensors, cameras, and control panels in security and access control applications.
Utility Metering
Providing robust communication for automated meter reading (AMR) and smart grid infrastructure.

Key Specifications

Type Transceiver
Duplex Half
Protocol RS422, RS485
Data Rate 10Mbps
Mounting Type Surface Mount
Package / Case 8-SOIC (0.154", 3.90mm Width)
Voltage - Supply 3V ~ 3.6V
Receiver Hysteresis 50 mV
Operating Temperature -40degC ~ 85degC
Supplier Device Package 8-SOIC
Number of Drivers/Receivers 1/1

Getting Started

To get started with the MAX3485ESA+, integrate it into your existing RS-485/RS-422 bus design. Standard 8-SOIC footprint makes it compatible with common PCB layouts. No specific development kits are usually needed for this type of component, as its interface is standard.

Also Consider

SN65HVD3082EDR TITexas Instruments - This is a low-power RS-485 transceiver from Texas Instruments, offering a competitive alternative for 3.3V systems.
ADM3485ARZ ADIAnalog Devices Inc. - This Analog Devices part is a 3.3V, 10Mbps RS-485 transceiver that offers similar electrical characteristics and performance.

Featured in Projects

ESP32-S3 Modbus Cloud Data Logger with Weeks of Local Buffer
Intermediate · 11 parts · ~$40-45
Build your own project with the Project Advisor
The 2026 Embedded Online Conference