MAX488ESA-T

Product Overview

• Category: Integrated Circuits (ICs)
• Use: RS-485/RS-422 Interface IC
• Characteristics:
  • Low-power, half-duplex transceiver
  • Supports data rates up to 2.5 Mbps
  • Wide supply voltage range: 4.5V to 5.5V
  • ESD protection for RS-485 bus pins
• Package: SOIC-8
• Essence: MAXIM Integrated Products
• Packaging/Quantity: Tape & Reel (2500 pieces per reel)

Specifications

• Supply Voltage Range: 4.5V to 5.5V
• Data Rate: Up to 2.5 Mbps
• Operating Temperature Range: -40°C to +85°C
• Number of Pins: 8
• Package Type: SOIC

Pin Configuration

The MAX488ESA-T has the following pin configuration:

```

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| | --| A B Y |-- --| GND BIAS V |-- |___________| ```

• A: Driver Input A
• B: Driver Input B
• Y: Receiver Output
• GND: Ground
• BIAS: Bias Resistor
• V: Supply Voltage

Functional Features

• Half-duplex transceiver for RS-485/RS-422 communication
• Low power consumption
• ESD protection for RS-485 bus pins
• Thermal shutdown protection
• Short-circuit protection

Advantages and Disadvantages

Advantages: - Low power consumption - Wide supply voltage range - ESD protection for RS-485 bus pins - Thermal and short-circuit protection

Disadvantages: - Limited data rate compared to some other ICs in the market

Working Principles

The MAX488ESA-T is a half-duplex transceiver designed for RS-485/RS-422 communication. It allows bidirectional data transmission over a single twisted-pair cable. The driver inputs (A and B) control the direction of data flow, while the receiver output (Y) provides the received data.

The IC operates with a supply voltage range of 4.5V to 5.5V and supports data rates up to 2.5 Mbps. It features low power consumption and includes ESD protection for the RS-485 bus pins. Additionally, the MAX488ESA-T incorporates thermal shutdown and short-circuit protection mechanisms.

Detailed Application Field Plans

The MAX488ESA-T is commonly used in various applications that require reliable long-distance data communication, such as:

1. Industrial automation systems
2. Building automation and control systems
3. HVAC (Heating, Ventilation, and Air Conditioning) systems
4. Access control systems
5. Security systems
6. Instrumentation and measurement equipment
7. Data acquisition systems
8. Telecommunication equipment

Detailed and Complete Alternative Models

Some alternative models to the MAX488ESA-T include:

1. SN75176B: RS-485 Transceiver, Texas Instruments
2. LTC1480: Low Power RS-485 Transceiver, Linear Technology
3. ADM485: Half-Duplex RS-485 Transceiver, Analog Devices
4. SP3485: Half-Duplex RS-485 Transceiver, Exar Corporation
5. ST485: Low Power RS-485 Transceiver, STMicroelectronics

These alternative models offer similar functionality and can be considered based on specific application requirements.

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