MAX483MJA/883B

Product Overview

• Category: Integrated Circuit (IC)
• Use: RS-485/RS-422 Transceiver
• Characteristics: High-speed, low-power, half-duplex communication
• Package: Ceramic DIP (Dual In-line Package)
• Essence: Maxim Integrated's MAX483MJA/883B is a high-performance RS-485/RS-422 transceiver designed for industrial applications.
• Packaging/Quantity: Available in tube packaging with 25 units per tube.

Specifications

• Supply Voltage: +4.75V to +5.25V
• Data Rate: Up to 250kbps
• Operating Temperature Range: -55°C to +125°C
• Number of Pins: 8
• Interface Type: Half-Duplex
• Input Logic Level: CMOS/TTL Compatible
• Output Logic Level: RS-485/RS-422 Compatible

Detailed Pin Configuration

1. DE (Driver Enable)
2. RE (Receiver Enable)
3. A (Non-Inverting Data Line)
4. B (Inverting Data Line)
5. GND (Ground)
6. Y (Receiver Output)
7. Vcc (Power Supply)
8. Z (Driver Output)

Functional Features

• Supports RS-485 and RS-422 standards
• Allows multiple transceivers on the bus
• Enables long-distance communication up to 1200 meters
• Provides thermal shutdown protection
• Low power consumption in shutdown mode
• Receiver input impedance: 12kΩ
• Driver output impedance: 96Ω

Advantages

• High-speed data transmission
• Robust performance in harsh industrial environments
• Wide operating temperature range
• Low power consumption
• Easy integration into existing systems
• Reliable and stable communication

Disadvantages

• Limited to half-duplex communication
• Requires external components for full functionality
• Higher cost compared to some alternatives

Working Principles

The MAX483MJA/883B is a half-duplex transceiver that allows bidirectional communication over a single twisted-pair cable. It converts the logic-level signals from a microcontroller or other digital device into RS-485/RS-422 compatible signals suitable for long-distance transmission. The driver section amplifies the transmitted signals, while the receiver section detects and amplifies the incoming signals.

Detailed Application Field Plans

The MAX483MJA/883B is widely used in various industrial applications, including:

1. Building automation systems
2. Industrial control systems
3. Process control equipment
4. Factory automation
5. Instrumentation and measurement devices
6. HVAC (Heating, Ventilation, and Air Conditioning) systems
7. Robotics
8. Security systems
9. Power distribution systems
10. Communication networks

Detailed and Complete Alternative Models

1. SN75176 - Texas Instruments
2. LTC485 - Linear Technology
3. ADM485 - Analog Devices
4. SP3485 - Exar Corporation
5. ST485 - STMicroelectronics
6. ISL8485 - Renesas Electronics

These alternative models offer similar functionality and can be considered as replacements for the MAX483MJA/883B depending on specific requirements and availability.

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