ADM4850ARZ

Product Overview

• Category: Integrated Circuit
• Use: RS-485/RS-422 Transceiver
• Characteristics: High-speed, half-duplex communication, low power consumption
• Package: SOIC (Small Outline Integrated Circuit)
• Essence: Transmits and receives data over long distances in industrial environments
• Packaging/Quantity: Tape and Reel, 2500 units per reel

Specifications

• Supply Voltage: 3.0V to 5.5V
• Data Rate: Up to 20 Mbps
• Operating Temperature Range: -40°C to +85°C
• Number of Channels: 1
• Receiver Hysteresis: 50 mV
• Driver Output Impedance: 54 Ω

Detailed Pin Configuration

The ADM4850ARZ has a total of 8 pins:

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

Functional Features

• Supports RS-485 and RS-422 standards
• Half-duplex communication mode
• Allows multiple transceivers on the bus
• Low power consumption in shutdown mode
• Enhanced ESD protection for robust operation in harsh environments

Advantages and Disadvantages

Advantages: - High-speed data transmission - Wide operating voltage range - Suitable for industrial applications - Robust design with enhanced ESD protection

Disadvantages: - Limited to half-duplex communication - Requires external components for full functionality

Working Principles

The ADM4850ARZ is a transceiver that enables bidirectional communication between a microcontroller or other digital device and an RS-485/RS-422 network. It converts the logic-level signals from the microcontroller into differential voltage signals suitable for long-distance transmission over twisted-pair cables. The transceiver also receives differential signals from the network and converts them back into logic-level signals for the microcontroller to process.

Detailed Application Field Plans

The ADM4850ARZ is commonly used in various industrial applications, including:

1. Building Automation Systems
2. Industrial Control Systems
3. Process Control Systems
4. HVAC (Heating, Ventilation, and Air Conditioning) Systems
5. Access Control Systems
6. Security Systems
7. Instrumentation and Measurement Systems

Detailed and Complete Alternative Models

1. MAX485 - Maxim Integrated
2. SN75176 - Texas Instruments
3. LTC485 - Linear Technology
4. SP3485 - Exar Corporation
5. ST485 - STMicroelectronics
6. ISL8485 - Renesas Electronics

These alternative models offer similar functionality and can be considered as substitutes for the ADM4850ARZ.

Word count: 314 words