LTC1483CS8

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LTC1483CS8

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RS-485 Interface IC LTC1483 - Ultra-Low Power RS485 Low EMI Transceiver with Shutdown

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Description

The LTC1483CS8 is a low-power RS-485 transceiver designed for data communication over long distances and in electrically noisy environments. It supports half-duplex communication and is particularly suitable for industrial applications. Operating on a single 5V supply, it features a low power consumption mode, making it ideal for battery-powered systems. The transceiver has a robust design that includes thermal shutdown protection and a fail-safe feature to prevent bus contention. With a maximum data rate of 250 kbps, it is effective for moderate-speed applications. The LTC1483CS8 is pin-compatible with industry standards, ensuring easy integration into existing RS-485 networks. Additionally, it provides a wide common-mode voltage range, enhancing its performance in demanding environments. Its compact 8-pin SOIC package allows for space-efficient PCB layouts. Overall, the LTC1483CS8 is valued for its reliability, low power operation, and compatibility with RS-485 communication protocols.

Equivalent

The LTC1483CS8 is a low power RS-485 transceiver. Equivalent products include:
1. MAX485 Produced by Maxim Integrated, offering similar low-power RS-485 transceiver capabilities.
2. SN75176: From Texas Instruments, a widely used RS-485 differential bus transceiver.
3. ADM485: By Analog Devices, providing similar RS-485 transceiver functionality.
4. SP485: Offered by Sipex, another RS-485 transceiver alternative.
Ensure compatibility by checking specific features and specifications.

Features

The LTC1483CS8 is a low power differential bus transceiver designed for RS485 and RS422 communication. Key features include:
1. Low Power Consumption: It operates with minimal power, making it suitable for battery-powered applications.
2. Wide Supply Range: The device functions efficiently within a supply voltage range of 4.75V to 5.25V.
3. High Data Rates: Capable of supporting data rates up to 250kbps.
4. Extended Common Mode Range: Operates effectively over a common mode range of -7V to 12V, ensuring reliable communication in noisy environments.
5. Low Driver Output Skew: Ensures minimal signal distortion for better data integrity.
6. Protection Features: Includes thermal shutdown protection and driver output short-circuit protection.
7. ESD Protection: Enhanced electrostatic discharge protection helps prevent damage during handling.
8. Slew Limiting: Controlled driver output slew rate minimizes electromagnetic interference (EMI).
9. Small Package: Available in a compact 8-pin SO package for space-constrained applications.
These features make the LTC1483CS8 a robust choice for reliable and efficient serial communication in various industrial and commercial applications.

Pinout

The LTC1483CS8 is an 8-pin device used for RS-485 and RS-422 communication applications. Here is a concise description of the pin count and their functions:
1. Pin 1 (RO): Receiver Output - Outputs the received data.
2. Pin 2 (RE̅): Receiver Output Enable - Enables or disables the receiver output (active low).
3. Pin 3 (DE): Driver Output Enable - Enables or disables the driver outputs (active high).
4. Pin 4 (DI): Driver Input - Inputs the data to be transmitted.
5. Pin 5 (GND): Ground - Reference point for all voltages.
6. Pin 6 (A): Non-inverting Driver Output / Receiver Input.
7. Pin 7 (B): Inverting Driver Output / Receiver Input.
8. Pin 8 (VCC): Positive Supply Voltage - Powers the device.
The LTC1483 is designed to be a low-power RS-485 transceiver, providing robust communication over long distances in industrial environments. It features fail-safe receiver inputs, which ensure a known output state when inputs are open or shorted.

Manufacturer

The LTC1483CS8 is a product originally manufactured by Linear Technology Corporation. Linear Technology, founded in 1981, was a company known for designing, manufacturing, and marketing a broad line of high-performance analog integrated circuits. These products serve a wide range of applications, including telecommunications, cellular telephones, networking products, notebook and desktop computers, computer peripherals, video/multimedia, industrial instrumentation, automotive electronics, factory automation, process control, military and space systems, and consumer electronics.
In 2017, Linear Technology was acquired by Analog Devices, Inc., a company that continues to provide a wide array of analog, mixed-signal, and digital signal processing technologies. Analog Devices serves customers in industries such as communications, computer, industrial, instrumentation, military/aerospace, automotive, and consumer electronics, focusing on creating solutions in analog technology and signal processing.

Application

The LTC1483CS8 is a low-power RS-485/RS-422 transceiver designed for high-speed data communication applications. It is commonly used in industrial automation systems, process control networks, and building automation systems for reliable data transmission over long distances. Its features make it suitable for use in telecommunications, remote meter reading, and security systems. Additionally, the LTC1483CS8's low power consumption and low electromagnetic interference (EMI) output are advantageous for battery-powered and portable devices. Its robust design, including protection against ESD and over-voltage, also makes it suitable for harsh environments where reliable communication is critical.

Package

The LTC1483CS8 is a low power RS-485 transceiver, and it comes in an 8-pin SOIC (Small Outline Integrated Circuit) package.

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