MAX3087EPA+ - English Editing Encyclopedia Entry

Product Overview

• Category: Integrated Circuit (IC)
• Use: MAX3087EPA+ is a high-speed, low-power transceiver designed for RS-485 and RS-422 communication systems.
• Characteristics: It offers excellent performance with low power consumption, making it suitable for various industrial applications. The device operates over a wide temperature range and provides robust communication in noisy environments.
• Package: MAX3087EPA+ comes in an 8-pin PDIP package.
• Essence: This IC serves as a reliable interface between different devices using the RS-485 or RS-422 protocols.
• Packaging/Quantity: The MAX3087EPA+ is typically sold in reels of 2500 units.

Specifications

• Supply Voltage: 4.75V to 5.25V
• Data Rate: Up to 20Mbps
• Operating Temperature Range: -40°C to +85°C
• Number of Channels: 1
• Input Logic Levels: CMOS/TTL
• Output Logic Levels: RS-485/RS-422

Pin Configuration

The MAX3087EPA+ features the following pin configuration:

```

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| | --| VCC GND |-- Pin 1: Power Supply --| RO RE |-- Pin 2: Receiver Output / Receiver Enable --| DI DE |-- Pin 3: Driver Input / Driver Enable --| DE /RE |-- Pin 4: Driver Enable / Receiver Enable (Active Low) --| A B |-- Pin 5: Differential Line Inputs --| Y /Z |-- Pin 6: Differential Line Outputs (Active Low) --| Z /Y |-- Pin 7: Differential Line Outputs (Active Low) --| B |-- Pin 8: Ground |___________| ```

Functional Features

• High-Speed Communication: The MAX3087EPA+ supports data rates of up to 20Mbps, enabling fast and efficient communication.
• Low Power Consumption: This IC is designed to minimize power consumption, making it suitable for battery-powered applications.
• Robust Communication: It provides excellent noise immunity and fault protection, ensuring reliable communication in harsh industrial environments.
• Wide Temperature Range: The device can operate within a wide temperature range from -40°C to +85°C, making it suitable for various applications.

Advantages and Disadvantages

Advantages: - High-speed data transmission - Low power consumption - Robust communication in noisy environments - Wide temperature range operation

Disadvantages: - Limited number of channels (1 channel)

Working Principles

The MAX3087EPA+ operates as an interface between devices using the RS-485 or RS-422 protocols. It converts the CMOS/TTL logic levels of the input signals into RS-485/RS-422 compatible differential signals. The driver and receiver sections provide bidirectional communication over a twisted-pair cable, allowing reliable data transfer even in electrically noisy environments.

Detailed Application Field Plans

The MAX3087EPA+ finds applications in various fields, including: - Industrial automation systems - Building automation - Process control systems - Security systems - HVAC (Heating, Ventilation, and Air Conditioning) systems - Instrumentation and measurement equipment

Alternative Models

Here are some alternative models that offer similar functionality to the MAX3087EPA+: - SN65HVD3082E - LTC2850 - ADM2483 - SP3485

These alternatives can be considered based on specific requirements and availability.

In conclusion, the MAX3087EPA+ is a high-speed, low-power transceiver designed for RS-485 and RS-422 communication systems. It offers robust communication, low power consumption, and operates over a wide temperature range. With its excellent performance, it finds applications in various industrial fields.