LTC2850MPS8#TRPBF

Product Overview

Category: Integrated Circuit (IC)

Use: LTC2850MPS8#TRPBF is a high-speed RS485/RS422 transceiver designed for robust communication in industrial applications. It provides reliable data transmission over long distances, making it suitable for use in various industries such as automation, instrumentation, and control systems.

Characteristics: - High-Speed Communication: The LTC2850MPS8#TRPBF supports data rates up to 20Mbps, enabling fast and efficient data transfer. - Robustness: This transceiver is built to withstand harsh industrial environments, offering excellent noise immunity and protection against voltage spikes. - Low Power Consumption: With its low quiescent current of only 300µA, the LTC2850MPS8#TRPBF helps conserve power in battery-powered applications. - ESD Protection: It features ±15kV Human Body Model (HBM) electrostatic discharge (ESD) protection on the bus pins, ensuring reliable operation even in electrostatically charged environments.

Package: LTC2850MPS8#TRPBF comes in an 8-pin plastic MSOP package, which offers compact size and ease of integration into circuit designs.

Essence: The essence of LTC2850MPS8#TRPBF lies in its ability to provide robust and high-speed communication in industrial applications, ensuring reliable data transmission over long distances.

Packaging/Quantity: The LTC2850MPS8#TRPBF is typically available in reels of 2500 units.

Specifications

• Supply Voltage Range: 3V to 5.5V
• Operating Temperature Range: -40°C to 85°C
• Maximum Data Rate: 20Mbps
• Quiescent Current: 300µA
• ESD Protection: ±15kV (HBM)
• Number of Pins: 8

Detailed Pin Configuration

The LTC2850MPS8#TRPBF has the following pin configuration:

1. DE/RE: Driver Output Enable/Receiver Output Enable
2. A/B: RS485/RS422 Differential Bus
3. GND: Ground
4. VCC: Power Supply
5. Y/Z: RS485/RS422 Differential Bus
6. RO: Receiver Output
7. DI: Driver Input
8. RE/DE: Receiver Output Enable/Driver Output Enable

Functional Features

• Half-Duplex Operation: The LTC2850MPS8#TRPBF supports half-duplex communication, allowing bidirectional data transfer on a single bus line.
• Fail-Safe Receiver: It includes a fail-safe receiver that ensures a high output when the bus is idle or shorted, preventing false data detection.
• Thermal Shutdown Protection: The transceiver incorporates thermal shutdown circuitry to protect against excessive heat during operation.
• Short-Circuit and Overvoltage Protection: It features built-in protection against short-circuits and overvoltage conditions, safeguarding the transceiver and connected devices.

Advantages and Disadvantages

Advantages: - High-speed data transmission capability - Robustness for reliable operation in industrial environments - Low power consumption for energy-efficient applications - ESD protection for enhanced reliability

Disadvantages: - Limited to half-duplex communication only - Requires external components for complete functionality

Working Principles

The LTC2850MPS8#TRPBF operates based on the differential signaling principle. It uses a balanced pair of signals (A/B or Y/Z) to transmit data over long distances. The driver amplifies the differential voltage levels, while the receiver detects and interprets these voltage differences to recover the transmitted data.

Detailed Application Field Plans

The LTC2850MPS8#TRPBF finds applications in various industrial fields, including: - Factory Automation: It enables reliable communication between different automation devices, such as PLCs, sensors, and actuators. - Process Control Systems: The transceiver facilitates robust data exchange in control systems used in industries like oil and gas, chemical, and power generation. - Instrumentation: It is suitable for connecting measurement instruments, allowing accurate data acquisition and control. - Building Automation: The LTC2850MPS8#TRPBF supports communication between different building automation components, such as HVAC systems, lighting controls, and access control systems.

Detailed and Complete Alternative Models

1. MAX485ESA+: This RS485/RS422 transceiver offers similar features and performance to the LTC2850MPS8#TRPBF. It comes in an 8-pin SOIC package and operates at data rates up to 2.5Mbps.
2. SN65HVD485E: This transceiver from Texas Instruments provides robust RS485 communication with a maximum data rate of 20Mbps