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SN75189N
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SN75189N

Product Overview

Category

SN75189N belongs to the category of integrated circuits (ICs).

Use

It is commonly used as a quadruple differential line receiver.

Characteristics

  • High input impedance
  • Wide common-mode voltage range
  • Low input offset voltage
  • High common-mode rejection ratio
  • Open-collector outputs
  • Compatible with TTL and CMOS logic levels

Package

SN75189N is available in a 16-pin dual-in-line package (DIP).

Essence

The essence of SN75189N lies in its ability to receive and convert differential signals into digital outputs.

Packaging/Quantity

SN75189N is typically sold in reels or tubes, with quantities varying depending on the supplier.

Specifications

  • Supply Voltage: 4.75V to 5.25V
  • Input Voltage Range: -7V to +12V
  • Operating Temperature Range: -40°C to +85°C
  • Output Current: ±20mA
  • Propagation Delay Time: 30ns (typical)
  • Input Resistance: 12kΩ (typical)

Detailed Pin Configuration

  1. A1: Differential Input A
  2. B1: Differential Input B
  3. Y1: Output Y1
  4. GND: Ground
  5. Y2: Output Y2
  6. B2: Differential Input B
  7. A2: Differential Input A
  8. VCC: Supply Voltage
  9. Y3: Output Y3
  10. GND: Ground
  11. Y4: Output Y4
  12. B4: Differential Input B
  13. A4: Differential Input A
  14. A3: Differential Input A
  15. B3: Differential Input B
  16. VCC: Supply Voltage

Functional Features

  • Differential inputs for noise immunity
  • Wide common-mode voltage range allows compatibility with various signal levels
  • High input impedance minimizes loading effects on the transmission line
  • Open-collector outputs facilitate wired-OR configurations

Advantages and Disadvantages

Advantages

  • High common-mode rejection ratio improves noise rejection
  • Compatible with both TTL and CMOS logic levels
  • Low input offset voltage enhances accuracy in signal reception

Disadvantages

  • Limited output current may restrict certain applications
  • Propagation delay time may affect real-time systems

Working Principles

SN75189N operates by receiving differential signals on its inputs (A1/B1, A2/B2, A3/B3, A4/B4) and converting them into digital outputs (Y1, Y2, Y3, Y4). The differential inputs provide noise immunity, while the wide common-mode voltage range ensures compatibility with different signal levels. The high input impedance minimizes the loading effects on the transmission line, allowing for accurate signal reception. The open-collector outputs enable flexible wired-OR configurations.

Detailed Application Field Plans

SN75189N finds applications in various fields, including: 1. Industrial automation 2. Telecommunications 3. Data communication 4. Instrumentation 5. Automotive electronics

Detailed and Complete Alternative Models

Some alternative models to SN75189N include: 1. MAX485 2. DS90LV019 3. LTC2874 4. ADM2587E 5. ISL3159E

These models offer similar functionality and can be used as substitutes depending on specific requirements.

In conclusion, SN75189N is a versatile quadruple differential line receiver IC that offers high performance, compatibility with different logic levels, and noise immunity. Its wide range of applications makes it a popular choice in various industries.

Enumere 10 preguntas y respuestas comunes relacionadas con la aplicación de SN75189N en soluciones técnicas

Sure! Here are 10 common questions and answers related to the application of SN75189N in technical solutions:

  1. Q: What is SN75189N? A: SN75189N is a quad differential line driver IC commonly used for transmitting and receiving data over long distances in various technical applications.

  2. Q: What is the operating voltage range of SN75189N? A: The operating voltage range of SN75189N is typically between 4.75V and 5.25V.

  3. Q: Can SN75189N be used for RS-232 communication? A: Yes, SN75189N can be used as an RS-232 line driver/receiver when combined with appropriate level shifters.

  4. Q: What is the maximum data rate supported by SN75189N? A: SN75189N supports data rates up to 20 Mbps, making it suitable for high-speed data transmission applications.

  5. Q: How many differential outputs does SN75189N have? A: SN75189N has four differential outputs, allowing it to drive multiple lines simultaneously.

  6. Q: Can SN75189N be used in industrial environments? A: Yes, SN75189N is designed to operate reliably in industrial environments, offering robustness and noise immunity.

  7. Q: Does SN75189N require external termination resistors? A: Yes, SN75189N requires external termination resistors to match the characteristic impedance of the transmission line being used.

  8. Q: Can SN75189N be used for half-duplex communication? A: Yes, SN75189N can be configured for half-duplex communication by using appropriate control signals.

  9. Q: Is SN75189N compatible with TTL logic levels? A: Yes, SN75189N is compatible with TTL logic levels, making it easy to interface with other TTL-compatible devices.

  10. Q: What is the typical power consumption of SN75189N? A: The typical power consumption of SN75189N is relatively low, typically around 20mW per channel.

Please note that these answers are general and may vary depending on specific application requirements and datasheet specifications.