LT1381CS

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LT1381CS

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RS-232 Interface IC LT1381 - Low Power 5V RS232 Dual Driver/Receiver with 0.1- F Capacitors

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Specifications

Attribute Value

Overview

Description

The LT1381CS is a high-speed, quad RS-232 driver/receiver integrated circuit designed by Linear Technology, now part of Analog Devices. It is intended for serial communication applications, providing the necessary voltage level conversion between the logic levels used in microcontrollers or other digital devices and the RS-232 standard used in serial ports.
Key features of the LT1381CS include:
1. High-Speed Operation: Capable of data rates up to 250 kbps, suitable for fast serial communication.
2. Low Power Consumption: Designed to minimize power usage, making it suitable for battery-operated devices.
3. Built-In ESD Protection: Enhanced protection against electrostatic discharge, ensuring reliability and durability.
4. Small Footprint: Available in a compact SO (small outline) package, facilitating space-efficient designs.
This IC is commonly used in applications such as modems, computers, and any systems requiring RS-232 communication interfaces. Its robust performance and efficiency make it a reliable choice for engineers looking to implement reliable serial communication in their designs.

Equivalent

The LT1381CS is a high-speed RS-232 transceiver. Equivalent products include:
1. MAX232: A widely used RS-232 transceiver with similar functionality.
2. SP232: Another RS-232 transceiver offering comparable features.
3. ADM232: An Analog Devices RS-232 driver/receiver with similar specs.
4. ST3232: A high-speed RS-232 transceiver from STMicroelectronics.
5. DS232: From Dallas Semiconductor, now part of Maxim Integrated, with similar capabilities.
Always verify the specifications to ensure compatibility with your application.

Features

The LT1381CS is a high-speed operational amplifier designed by Linear Technology. It features:
1. High-Speed Performance: Offers a slew rate of 450 V/µs and a gain-bandwidth product of 70 MHz, making it suitable for fast signal processing applications.
2. Wide Supply Voltage Range: Operates on a supply voltage range from ±5V to ±15V, providing flexibility for various applications.
3. Low Distortion and Noise: Designed to minimize distortion and noise, important for maintaining signal integrity in audio and high-frequency applications.
4. Output Drive Capability: Capable of driving loads such as cables and capacitive loads, which is useful in applications requiring strong output signals.
5. Rail-to-Rail Output: Provides a wide output voltage swing close to the supply rails, enhancing its dynamic range.
6. Thermal Stability: Includes features that ensure stable operation over a range of temperatures, important for reliability in diverse environments.
7. Package Type: Available in a compact SO-8 package, making it suitable for space-constrained applications.
This combination of features makes the LT1381CS ideal for applications in communications, video processing, and other high-speed analog functions.

Pinout

The LT1381CS is a dual RS232 driver/receiver integrated circuit. It typically comes in a 16-pin SOIC (Small Outline Integrated Circuit) package. The pin functions for the LT1381CS in this configuration are as follows:
1. C1+: Positive terminal for the charge pump capacitor.
2. V+: Positive voltage generated by the charge pump for the RS232 driver.
3. C1-: Negative terminal for the charge pump capacitor.
4. C2+: Positive terminal for the second charge pump capacitor.
5. C2-: Negative terminal for the second charge pump capacitor.
6. V-: Negative voltage generated by the charge pump for the RS232 driver.
7. T1OUT: RS232 driver output 1.
8. R1IN: RS232 receiver input 1.
9. R1OUT: RS232 receiver output 1.
10. T1IN: RS232 driver input 1.
11. T2IN: RS232 driver input 2.
12. R2OUT: RS232 receiver output 2.
13. R2IN: RS232 receiver input 2.
14. T2OUT: RS232 driver output 2.
15. GND: Ground.
16. VCC: Positive supply voltage.
This IC is designed for RS232 communication, providing the necessary voltage levels for reliable data transmission and reception.

Manufacturer

The LT1381CS is manufactured by Linear Technology Corporation. Linear Technology is a company that specializes in designing, manufacturing, and marketing a broad line of high-performance analog integrated circuits. Their products are used in various applications, including telecommunications, networking products, industrial instrumentation, automotive electronics, and consumer electronics. Linear Technology is known for its expertise in analog technology, and its products often focus on power management, data conversion, signal conditioning, and RF systems. In 2017, Linear Technology was acquired by Analog Devices, Inc., another major player in the analog and mixed-signal semiconductor industry.

Application

The LT1381CS is a high-speed RS232 transceiver used in communication and networking applications. Its primary application areas include:
1. Data Communication: Facilitates reliable RS232 data transmission between computers, modems, and peripherals.
2. Embedded Systems: Integrates into microcontroller-based designs for serial communication.
3. Industrial Automation: Used in control systems for equipment communication.
4. Consumer Electronics: Found in devices requiring serial port connectivity.
5. Networking Equipment: Assists in facilitating serial data transfer over network devices.
6. Medical Devices: Ensures safe and effective communication in diagnostic equipment.
Its high speed and low power operation make it suitable for portable and battery-powered applications.

Package

The LT1381CS is a high-speed RS232 driver/receiver integrated circuit and is packaged in a 16-lead plastic SOIC (Small Outline Integrated Circuit) package.