LTC1348IG#PBF

Product Overview

Category: Integrated Circuit (IC)

Use: The LTC1348IG#PBF is a high-speed, low-power, 3.3V compatible RS485/RS422 transceiver. It is designed for use in industrial applications that require reliable long-distance data communication.

Characteristics: - High-speed operation - Low power consumption - 3.3V compatible - Robust and reliable communication - Suitable for long-distance data transmission

Package: The LTC1348IG#PBF is available in an industry-standard 14-pin SOIC (Small Outline Integrated Circuit) package.

Essence: This IC serves as a bridge between different devices or systems, enabling them to communicate over long distances using the RS485/RS422 protocol.

Packaging/Quantity: The LTC1348IG#PBF is typically sold in reels containing 250 units.

Specifications

• Supply Voltage Range: 3V to 5.5V
• Data Rate: Up to 20Mbps
• Operating Temperature Range: -40°C to 85°C
• ESD Protection: ±15kV Human Body Model
• Receiver Input Impedance: 12kΩ
• Driver Output Impedance: 54Ω

Pin Configuration

The LTC1348IG#PBF features a 14-pin SOIC package with the following pin configuration:

1. DE (Driver Enable)
2. RE (Receiver Enable)
3. RO (Receiver Output)
4. DI (Driver Input)
5. GND (Ground)
6. B (Inverting Receiver Input)
7. A (Non-Inverting Receiver Input)
8. VCC (Supply Voltage)
9. Y (Non-Inverting Driver Output)
10. Z (Inverting Driver Output)
11. RTS (Request to Send)
12. CTS (Clear to Send)
13. NC (No Connection)
14. NC (No Connection)

Functional Features

• High-speed data transmission: The LTC1348IG#PBF supports data rates of up to 20Mbps, making it suitable for applications that require fast and reliable communication.
• Low power consumption: This IC is designed to operate with minimal power consumption, making it ideal for battery-powered devices or energy-efficient systems.
• Robust communication: With built-in ESD protection and a receiver input impedance of 12kΩ, the LTC1348IG#PBF ensures reliable data reception even in harsh industrial environments.
• Driver enable and receiver enable control: The DE and RE pins allow for easy control of the driver and receiver functions, enabling efficient data flow management.

Advantages and Disadvantages

Advantages: - High-speed operation - Low power consumption - Robust communication capabilities - Easy driver and receiver control

Disadvantages: - Limited pin configuration options - Requires additional external components for complete functionality

Working Principles

The LTC1348IG#PBF operates based on the RS485/RS422 protocol, which allows for differential signaling over long distances. It uses differential line drivers and receivers to transmit and receive data, ensuring noise immunity and reliable communication.

When transmitting data, the driver input (DI) receives the digital signal and converts it into a differential output signal (Y and Z). On the receiving end, the non-inverting receiver input (A) and inverting receiver input (B) receive the differential signal and convert it back into a digital output signal (RO).

The driver enable (DE) and receiver enable (RE) pins control the respective functions, allowing for efficient data flow management.

Detailed Application Field Plans

The LTC1348IG#PBF is widely used in various industrial applications that require long-distance data communication, such as:

1. Industrial Automation: It enables reliable communication between different automation devices, such as PLCs (Programmable Logic Controllers), sensors, and actuators.
2. Building Management Systems: It facilitates data exchange between various components of building management systems, including HVAC (Heating, Ventilation, and Air Conditioning) systems, lighting controls, and security systems.
3. Energy Management: It allows for efficient communication between energy meters, smart grid components, and monitoring systems, enabling effective energy management and control.
4. Transportation Systems: It enables communication between different subsystems in transportation systems, such as traffic control systems, railway signaling, and vehicle tracking systems.

Detailed and Complete Alternative Models

1. MAX485: This IC offers similar functionality to the LTC1348IG#PBF and is widely used in industrial applications.
2. SN75176: Another popular choice for RS485/RS422 transceivers, offering high-speed operation and robust communication capabilities.
3. ADM485: This IC provides low power consumption and ESD protection, making it suitable for demanding industrial environments.

These alternative models can