MAX491ECSD+T - Analog Devices Inc./Maxim Integrated

Manufacturer Part Number

MAX491ECSD+T

Manufacturer

Analog Devices

Introduction

MAX491ECSD+T is a full-duplex RS422/RS485 transceiver designed for high-speed bidirectional data communication on multipoint bus transmission lines.

Product Features and Performance

Full-duplex RS422/RS485 transceiver

Data rate of 2.5Mbps for high-speed communication

Receiver hysteresis of 70 mV for improved noise immunity

Operates from a single 5V supply (4.75V to 5.25V)

Low quiescent current of 300 uA for power efficiency

Product Advantages

Integrated protection for electrostatic discharge

High data rate suitable for robust communication in industrial environments

Low power consumption enhancing system reliability

Key Technical Parameters

Data Rate: 2.5Mbps

Voltage Supply: 4.75V ~ 5.25V

Operating Temperature: 0°C ~ 70°C

Number of Drivers/Receivers: 1/1

Duplex: Full

Receiver Hysteresis: 70 mV

Quality and Safety Features

Thermal shutdown protection

Short-circuit protection for drivers and receivers

ESD protection on transceiver input/output pins

Compatibility

Compatible with RS422 and RS485 protocols

Application Areas

Industrial automation

Telecommunications systems

Data acquisition systems

Networked control systems

Product Lifecycle

Currently active product status

Continual production with no current plans for discontinuation

Availability of replacements or upgrades not specified

Several Key Reasons to Choose This Product

High-speed data transfer capability of 2.5Mbps

Robust electrostatic discharge protection ensuring long-term reliability

Supports full-duplex communication enabling simultaneous data transmission and reception

Optimal power efficiency through low supply voltage and quiescent current

Suitable for harsh industrial environments with a broad operating temperature range