The MAX483MSA/PR+T from Maxim Integrated is a highly efficient, low-power transceiver for RS-485 and RS-422 communication. This device is designed to operate with a single 5V power supply, making it suitable for a wide range of industrial, network, and telecommunications applications. The MAX483MSA/PR+T features a quarter-unit-load receiver input impedance, allowing up to 128 transceivers on the bus.

Key Features

• Slew-Rate-Limited: The MAX483MSA/PR+T has a controlled slew rate, which minimizes EMI and reduces reflections caused by improperly terminated cables, allowing error-free data transmission up to 250kbps.
• Low-Power Operation: This transceiver is optimized for low-power consumption, drawing less than 500µA of supply current when unloaded or fully loaded with the drivers disabled.
• Wide Common-Mode Range: It has an extended common-mode range of -7V to +12V, exceeding the requirements of the RS-485 and RS-422 standards.
• Thermal Shutdown Protection: The device includes a thermal shutdown feature that protects it from damage due to excessive power dissipation.
• Fail-Safe Receiver: The receiver ensures a logic-high output if the input is open circuit, shorted, or connected to a terminated transmission line with all drivers disabled.

Applications

• Industrial Control
• Building Automation
• Network Equipment
• Telecommunications Systems

Package and Reliability

The MAX483MSA/PR+T is available in an 8-pin SOIC package, offering a compact footprint for space-constrained applications. It is characterized for operation from -40°C to +85°C, ensuring reliable performance in harsh environments. The device is also available in tape and reel packaging, denoted by the "+T," making it ideal for automated assembly processes.

With its robust feature set and reliability, the MAX483MSA/PR+T is an excellent choice for designers looking to implement RS-485/RS-422 communication in their systems with minimal power consumption and maximum bus capacity.