MAX3490AEGSA+T

Product Overview

• Category: Integrated Circuits (ICs)
• Use: RS-485/RS-422 Transceiver
• Characteristics: High-Speed, Low-Power, Half-Duplex, 3.3V Supply Voltage
• Package: 16-SOIC (Small Outline Integrated Circuit)
• Essence: MAX3490AEGSA+T is a high-speed transceiver designed for RS-485 and RS-422 communication protocols.
• Packaging/Quantity: Available in tape and reel packaging with 2500 units per reel.

Specifications

• Supply Voltage: 3.3V
• Data Rate: Up to 25Mbps
• Operating Temperature Range: -40°C to +85°C
• Number of Channels: 1
• Input Type: Differential
• Output Type: Differential
• Propagation Delay: 10ns (typical)
• Shutdown Current: 1µA (typical)

Detailed Pin Configuration

The MAX3490AEGSA+T has a 16-pin SOIC package with the following pin configuration:

1. DE (Driver Enable)
2. RE (Receiver Enable)
3. A (Non-Inverting Driver Output)
4. B (Inverting Driver Output)
5. GND (Ground)
6. B (Inverting Receiver Input)
7. A (Non-Inverting Receiver Input)
8. VCC (Power Supply)
9. Y (Non-Inverting Receiver Output)
10. Z (Inverting Receiver Output)
11. GND (Ground)
12. B (Inverting Driver Input)
13. A (Non-Inverting Driver Input)
14. VCC (Power Supply)
15. RE (Receiver Enable)
16. DE (Driver Enable)

Functional Features

• Supports RS-485 and RS-422 communication protocols
• Half-duplex operation
• Low power consumption
• High-speed data transmission up to 25Mbps
• Wide operating temperature range (-40°C to +85°C)
• Built-in driver and receiver enable pins for control

Advantages and Disadvantages

Advantages: - High-speed data transmission capability - Low power consumption - Wide operating temperature range - Integrated driver and receiver enable pins for easy control

Disadvantages: - Limited to half-duplex operation - Requires external components for complete functionality

Working Principles

The MAX3490AEGSA+T is designed to facilitate reliable communication using the RS-485 and RS-422 protocols. It incorporates a differential driver and receiver, allowing for noise-immune data transmission over long distances. The driver and receiver can be enabled or disabled using the DE (Driver Enable) and RE (Receiver Enable) pins, respectively.

When transmitting data, the driver amplifies the differential signals from the A and B inputs and sends them to the communication line. On the receiving end, the receiver amplifies the incoming differential signals from the communication line and provides the received data at the Y and Z outputs.

Detailed Application Field Plans

The MAX3490AEGSA+T is commonly used in various applications requiring robust and high-speed communication, such as:

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

Detailed and Complete Alternative Models

1. MAX3485EESA+T
2. MAX485ESA+T
3. SN65HVD485EDR
4. LTC2854IGN#PBF
5. ADM485ARZ-REEL7

These alternative models offer similar functionality and can be considered as replacements for the MAX3490AEGSA+T in various applications.

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