Linear Technology LTC485I: Low Power RS485 Interface Transceiver

The LTC485I is a low power differential bus/line transceiver designed by Linear Technology for multipoint data transmission standard RS485 applications. This product is specifically engineered to operate in extended industrial temperature ranges, making it an ideal choice for harsh environment applications.

Key Features

• Temperature Range: The LTC485I is robust, with an industrial temperature range of -40°C to 85°C, ensuring reliable performance under extreme conditions.
• Low Power Operation: It is designed for energy efficiency, with a very low quiescent current, making it suitable for power-sensitive applications.
• Single 5V Supply: The device operates on a single 5V supply, simplifying power supply design and reducing power consumption.
• High Impedance Receiver Input: The receiver input has a high impedance, which allows up to 32 transceivers on the bus, enhancing the capability for creating complex communication networks.
• Thermal Shutdown Protection: It includes thermal shutdown protection that protects the device from damage at extreme temperatures.

Applications

The LTC485I is versatile and can be used in various applications, such as:

• Networked Industrial Control Systems
• Building Automation
• Factory Automation
• Remote Data Acquisition

Product Advantages

The LTC485I transceiver stands out for its low power requirements and its ability to maintain signal integrity over long distances in industrial environments. Its enhanced electrostatic discharge (ESD) protection ensures resilience in electrically noisy environments, while the fail-safe feature guarantees a known output state when input signals are open or shorted.

Conclusion

Linear Technology's LTC485I is a reliable, low power RS485 interface transceiver that excels in demanding industrial applications. Its robust design and comprehensive feature set ensure efficient and secure data communication in a variety of systems, making it a go-to solution for engineers and system integrators worldwide.