MAX485 low-power transceiver

Product Overview

The MAX485 Low-Power Transceiver is a half-duplex RS-485/RS-422 transceiver designed for low-power and long-distance serial communication. Operating at 5V, it consumes minimal power while maintaining reliable data transmission over distances up to 1200 meters. The MAX485 supports up to 32 devices on a single bus, making it ideal for industrial, embedded, and automation applications.

Key Features

• RS-485/RS-422 Transceiver – Supports half-duplex communication.
• Low Power Consumption – Ideal for battery-powered applications.
• Single 5V Operation – Ensures compatibility with standard microcontrollers.
• Supports Up to 32 Devices on a Bus – Enables multi-node communication.
• High Data Rate – Supports up to 2.5Mbps transmission speed.
• Short-Circuit and Thermal Protection – Enhances durability and reliability.
• Fail-Safe Receiver Input – Ensures stable operation in noisy environments.

Technical Specifications

• Supply Voltage: 4.75V – 5.25V
• Data Rate: Up to 2.5Mbps
• Receiver Sensitivity: ±200mV
• Input Impedance: 12kΩ (minimum)
• Propagation Delay: 200ns (typical)
• Operating Temperature: -40°C to +85°C
• Distance Support: Up to 1200 meters
• Package Types: DIP, SOIC

Applications

• Industrial Automation – Reliable RS-485 communication in factories.
• Building Automation – HVAC, security, and smart building systems.
• Embedded Systems – Microcontroller-based serial communication.
• Energy Management – Smart meters and grid monitoring.

Why Choose MAX485?

The MAX485 offers a balance of low power, high speed, and long-distance reliability, making it a top choice for RS-485/RS-422 communication in industrial, embedded, and IoT applications.