MAX485EESA - RS-485/RS-422 Transceiver

The MAX485EESA from Maxim Integrated is a low-power, slew-rate-limited transceiver designed for RS-485 and RS-422 communication. This device is ideal for long transmission lines because its slew-rate-limited driver reduces electromagnetic interference (EMI) and eliminates the need for external filtering. It is suitable for industrial environments and can be used in applications such as networked industrial control systems, factory automation, and data acquisition systems.

Key Features:

• Interface Type: RS-485, RS-422
• Data Rate: Up to 2.5Mbps
• Supply Voltage: 5V
• Operating Temperature Range: -40°C to +85°C
• Packaging: 8-SOIC (0.154", 3.90mm Width)
• ESD Protection: ±15kV Human Body Model
• Low Quiescent Current: 300µA
• Low Shutdown Current: 0.1µA

The MAX485EESA transceiver contains one driver and one receiver. The device features a half-duplex communication capability, which means it can both transmit and receive data but not simultaneously. This transceiver is designed with a fail-safe feature that guarantees a logic-high receiver output when the receiver inputs are open or shorted, or when they are connected to a terminated transmission line with all drivers disabled.

With its extended ESD protection, the MAX485EESA is robust against the harsh electrical environments typically found in industrial settings. It also offers thermal shutdown protection and current limiting, which further enhances its reliability and longevity.

Integrating the MAX485EESA into your design is straightforward, thanks to its industry-standard 8-pin SOIC package and the availability of comprehensive technical documentation and support from Maxim Integrated. Whether you're upgrading existing systems or developing new ones, the MAX485EESA provides a reliable foundation for your RS-485 and RS-422 communication needs.