ISL83488IB-T

Product Overview

Category: Integrated Circuit (IC)

Use: The ISL83488IB-T is a high-speed, quad-channel RS-485/RS-422 transceiver. It is designed to provide reliable data transmission over long distances in industrial applications.

Characteristics: - High-speed communication: Supports data rates up to 20 Mbps. - Robust performance: Built-in protection features for enhanced reliability in harsh environments. - Low power consumption: Optimized for energy efficiency. - Wide supply voltage range: Operates from 3V to 5.5V. - ESD protection: Provides ±15kV HBM ESD protection on all pins.

Package: The ISL83488IB-T is available in a small outline integrated circuit (SOIC) package.

Essence: This IC serves as a bridge between different devices or systems using the RS-485/RS-422 communication protocol. It enables reliable and high-speed data transmission over long distances, making it ideal for industrial automation, process control, and other similar applications.

Packaging/Quantity: The ISL83488IB-T is typically sold in reels containing 2500 units per reel.

Specifications

• Supply Voltage Range: 3V to 5.5V
• Data Rate: Up to 20 Mbps
• Operating Temperature Range: -40°C to +85°C
• Number of Channels: 4
• Input/Output Configuration: RS-485/RS-422
• ESD Protection: ±15kV HBM
• Package Type: SOIC

Pin Configuration

The ISL83488IB-T features a 16-pin SOIC package with the following pin configuration:

Pin 1: A1- Pin 2: B1+ Pin 3: GND Pin 4: B1- Pin 5: A1+ Pin 6: RE/DE Pin 7: Y1 Pin 8: Z1 Pin 9: GND Pin 10: Z2 Pin 11: Y2 Pin 12: RE/DE Pin 13: A2+ Pin 14: B2- Pin 15: GND Pin 16: B2+

Functional Features

• RS-485/RS-422 Compatibility: The ISL83488IB-T supports both RS-485 and RS-422 communication standards, providing flexibility in various applications.
• Half-Duplex Operation: It allows bidirectional data transmission on a single pair of wires, enabling efficient communication between multiple devices.
• Enhanced ESD Protection: The integrated ESD protection guards against electrostatic discharge, ensuring the reliability of the transceiver in rugged environments.
• Low Power Consumption: The IC is designed to minimize power consumption, making it suitable for battery-powered or energy-efficient systems.

Advantages and Disadvantages

Advantages: - High-speed data transmission capability. - Robust performance in harsh industrial environments. - Wide supply voltage range for compatibility with different systems. - Integrated ESD protection for enhanced reliability. - Low power consumption for energy efficiency.

Disadvantages: - Limited to RS-485/RS-422 communication protocols. - Requires additional external components for complete system integration.

Working Principles

The ISL83488IB-T operates based on the principles of differential signaling. It uses two wires (A and B) to transmit data, where the voltage difference between these wires represents the digital information. The transceiver converts the logic levels from the connected device into appropriate voltage levels for transmission over long distances. It also incorporates features like line termination and driver/receiver enable control to ensure proper signal integrity and noise immunity.

Detailed Application Field Plans

The ISL83488IB-T finds applications in various industrial fields, including: - Industrial automation systems - Process control equipment - Building automation - Motor control systems - Robotics - HVAC (Heating, Ventilation, and Air Conditioning) systems - Energy management systems

Its high-speed communication, robustness, and reliability make it suitable for these demanding environments.

Detailed and Complete Alternative Models

• MAX485: A popular alternative with similar specifications and functionality.
• SN65HVD485: Another widely used RS-485 transceiver with comparable features.
• LTC2850: A low-power RS-485 transceiver with integrated ESD protection.

These alternative models offer similar capabilities and can be considered as substitutes for the ISL83488IB-T based on specific application requirements.

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