MAX490

The MAX490 is a low-power, half-duplex RS-485/RS-422 transceiver designed for communication over long distances and in noisy environments. It features a robust design with enhanced noise immunity, making it ideal for industrial and commercial applications. The MAX490 is capable of data rates up to 2.5 Mbps and operates from a single 5V supply. It includes a driver and a receiver, with the driver featuring short-circuit current limiting and thermal shutdown for protection.

Key Features:

• Low power consumption
• ESD protection on RS-485 I/O pins
• Meets RS-485 and RS-422 standards
• Half-duplex communication
• Data rates up to 2.5 Mbps
• Operates from a single 5V supply
• Driver short-circuit current limit and thermal shutdown
• Robust noise immunity
• Standard 8-pin SOIC/DIP package

Technical Specifications:

• Supply Voltage (VCC): 4.75V to 5.25V
• Driver Differential Output Voltage: ±1.5V (min)
• Receiver Input Sensitivity: ±200mV
• Receiver Input Resistance: 12kΩ (min)
• High-Level Input Voltage (VIH): 2V (min)
• Low-Level Input Voltage (VIL): 0.8V (max)
• High-Level Output Voltage (VOH): 3.5V (min) at Iout = -4mA
• Low-Level Output Voltage (VOL): 0.4V (max) at Iout = 4mA
• Data Rate: Up to 2.5 Mbps
• Operating Temperature Range: -40°C to +85°C
• Package: 8-pin SOIC/DIP

Applications:

• Industrial Automation: Facilitates reliable communication in factory automation systems.
• Building Automation: Used in HVAC control systems and other building management applications.
• Embedded Systems: Provides robust communication in microcontroller and microprocessor-based projects.
• Networking Equipment: Enables long-distance data transfer in networking devices.
• Telecommunications: Ensures reliable data communication in telecommunication systems.
• Security Systems: Used in surveillance and access control systems for reliable data transfer.

Datasheet:
For detailed technical information, refer to the MAX490 Datasheet.