The ADM1487ARZ is a 3.3 V, low power transceiver designed for RS-485 and RS-422 communication. Manufactured by Analog Devices, this transceiver is suitable for use in electrically noisy environments and is designed for long-distance transmission. It features robust protection and low power consumption, making it an ideal choice for various industrial and commercial applications.

Applications

• Industrial Automation
• Process Control
• Building Automation
• Motor Control
• Networking

Features

• 3.3 V Single Supply Operation
• Low Power Consumption
• Half-Duplex Operation
• ±15 kV ESD Protection on RS-485 Inputs/Outputs
• Thermal Shutdown Protection
• 120 kOhm Input Impedance (Allows up to 256 Transceivers on the Bus)
• Data Rate up to 500 kbps
• 8-Lead SOIC Package

Benefits

• Robust Communication: The ±15 kV ESD protection ensures reliable communication in harsh industrial environments.
• Energy Efficiency: Low power consumption minimizes energy waste and reduces operating costs.
• High Network Capacity: The 120 kOhm input impedance allows for a large number of transceivers on the bus, maximizing network capacity.
• Protection: Thermal shutdown protection safeguards the device against damage from overheating.
• Simplified Design: Single supply operation simplifies system design and reduces component count.

Additional Details

The ADM1487ARZ transceiver features a half-duplex communication scheme, where data can be transmitted or received but not simultaneously. It is designed to meet the TIA/EIA-485 and TIA/EIA-422 standards, ensuring compatibility with a wide range of devices. The transceiver's driver output is short-circuit protected, preventing damage from wiring faults. The receiver incorporates a fail-safe feature that ensures a known output state when the inputs are open or shorted. It operates over a temperature range of -40°C to +85°C, making it suitable for a variety of operating environments. The small 8-lead SOIC package allows for easy integration into space-constrained applications.