Texas Instruments
Obrázek může být reprezentace.
Viz Specifikace pro podrobnosti o produktu.
DS1489AM

DS1489AM

Product Overview

Category: Integrated Circuit (IC)

Use: The DS1489AM is a quad line receiver IC that is commonly used in communication systems for converting differential signals into logic-level signals. It is designed to receive data transmitted over long distances and is widely used in applications such as RS-232 serial communication.

Characteristics: - Quad line receiver - Converts differential signals to logic-level signals - Suitable for long-distance data transmission - Compatible with RS-232 standard

Package: The DS1489AM is available in a 14-pin dual in-line package (DIP) or a surface mount package (SMD). The package provides protection and easy integration of the IC into electronic circuits.

Essence: The DS1489AM is an essential component in communication systems, enabling the reception of data transmitted over long distances.

Packaging/Quantity: The DS1489AM is typically sold in reels or tubes containing multiple units. The exact quantity depends on the manufacturer and distributor.

Specifications

  • Supply Voltage: 4.5V to 5.5V
  • Input Voltage Range: -30V to +30V
  • Operating Temperature Range: -40°C to +85°C
  • Data Rate: Up to 120 kbps
  • Number of Channels: 4

Pin Configuration

The DS1489AM has a 14-pin configuration as follows:

  1. Channel 1 Input A
  2. Channel 1 Input B
  3. Channel 2 Input A
  4. Channel 2 Input B
  5. Channel 3 Input A
  6. Channel 3 Input B
  7. Channel 4 Input A
  8. Channel 4 Input B
  9. Ground (GND)
  10. Channel 1 Output
  11. Channel 2 Output
  12. Channel 3 Output
  13. Channel 4 Output
  14. Vcc (Supply Voltage)

Functional Features

  • Differential input with hysteresis for noise immunity
  • Wide input voltage range for compatibility with various signal levels
  • High-speed data transmission capability
  • Low power consumption
  • ESD protection on all inputs and outputs

Advantages and Disadvantages

Advantages: - Reliable reception of data over long distances - Compatibility with RS-232 standard - Robust design with ESD protection - Low power consumption

Disadvantages: - Limited to quad channel reception only - Requires external components for complete RS-232 communication

Working Principles

The DS1489AM operates by receiving differential signals on its input channels and converting them into logic-level signals. It utilizes hysteresis to provide noise immunity and ensure reliable data reception. The IC is designed to work with a wide range of input voltages, allowing it to handle different signal levels encountered in communication systems.

Detailed Application Field Plans

The DS1489AM is commonly used in various applications, including: 1. RS-232 serial communication interfaces 2. Industrial automation systems 3. Telecommunication equipment 4. Data acquisition systems 5. Networking devices

Alternative Models

There are several alternative models available that offer similar functionality to the DS1489AM. Some popular alternatives include: - MAX1489 - SN75189 - LTC1489

These alternative models may have slight differences in specifications and pin configurations, but they serve the same purpose of converting differential signals to logic-level signals.

In conclusion, the DS1489AM is a quad line receiver IC widely used in communication systems for converting differential signals to logic-level signals. Its robust design, compatibility with the RS-232 standard, and wide application field make it a popular choice in various industries.

Seznam 10 běžných otázek a odpovědí souvisejících s aplikací DS1489AM v technických řešeních

Sure! Here are 10 common questions and answers related to the application of DS1489AM in technical solutions:

  1. Q: What is DS1489AM? A: DS1489AM is a quad line receiver IC (Integrated Circuit) commonly used for converting RS-232 signals into TTL/CMOS logic levels.

  2. Q: What are the typical applications of DS1489AM? A: DS1489AM is often used in various technical solutions where RS-232 communication needs to be interfaced with microcontrollers, PLCs, or other digital devices.

  3. Q: How many RS-232 inputs can DS1489AM handle? A: DS1489AM has four independent RS-232 inputs, allowing it to receive data from up to four different RS-232 sources simultaneously.

  4. Q: Can DS1489AM also convert TTL/CMOS logic levels back to RS-232? A: No, DS1489AM is only a receiver IC and does not provide any level shifting or conversion capabilities from TTL/CMOS to RS-232.

  5. Q: What is the operating voltage range of DS1489AM? A: DS1489AM operates within a voltage range of +4.5V to +5.5V.

  6. Q: Does DS1489AM require any external components for proper operation? A: Yes, DS1489AM requires external capacitors and resistors for biasing and filtering purposes. The datasheet provides recommended values and circuit configurations.

  7. Q: What is the maximum data rate supported by DS1489AM? A: DS1489AM supports data rates up to 120 kbps (kilobits per second).

  8. Q: Can DS1489AM handle both full-duplex and half-duplex communication? A: Yes, DS1489AM supports both full-duplex and half-duplex RS-232 communication.

  9. Q: Is DS1489AM compatible with 3.3V logic levels? A: No, DS1489AM is designed for TTL/CMOS logic levels of +5V. It may not work reliably with 3.3V logic levels without additional level shifting circuitry.

  10. Q: Are there any specific ESD (Electrostatic Discharge) protection measures in DS1489AM? A: Yes, DS1489AM incorporates ESD protection on all inputs and outputs, providing robustness against electrostatic discharge events.

Please note that these answers are general and may vary depending on the specific implementation and usage scenario. Always refer to the official datasheet and consult with technical experts for accurate information.