MAX485ESA+T RS-485/RS-422 Transceiver by Analog Devices | SOIC-8 Package

The MAX485ESA+T from Analog Devices is a low-power transceiver designed for RS-485 and RS-422 communication in half-duplex applications. It integrates one driver and one receiver, enabling reliable high-speed data transmission over long distances with minimal power consumption.

Key Features

• Wide Receiver Input Voltage Range: –8 V to +12.5 V (A, B)

• Data Rate: Up to 2.5 Mbps

• Low Power Consumption: 120 µA to 500 µA operating current

• Shutdown Mode: Only 0.1 µA (available on MAX481, MAX483, MAX487)

• Driver Protection:

  • Short-circuit current limiting

  • Thermal shutdown protection with auto high-impedance state

• Receiver Fail-Safe: Guarantees logic-high output when input is open circuit

• Compatibility: Supports RS-485 and RS-422 standards

• Package: SOIC-8 (Surface Mount)

Additional Family Options

• MAX483, MAX487, MAX488, MAX489: Reduced slew-rate drivers (250 kbps, EMI reduction)

• MAX481, MAX485, MAX490, MAX491, MAX1487: Full-speed drivers (up to 2.5 Mbps)

• MAX487 & MAX1487: Quarter-unit-load input impedance → support up to 128 transceivers on the bus

• Full-Duplex Versions: MAX488–MAX491

• Half-Duplex Versions: MAX481, MAX483, MAX485, MAX487, MAX1487

Applications

• Industrial RS-485/RS-422 networks

• Multi-drop communication systems

• HVAC and building automation

• Motor control and motion networks

• Long-distance serial data transmission