MAX845EUA+ - English Editing Encyclopedia Entry

Product Overview

Category

The MAX845EUA+ belongs to the category of integrated circuits (ICs).

Use

This IC is commonly used in electronic devices for signal conditioning and isolation purposes.

Characteristics

• The MAX845EUA+ is a high-speed, isolated RS-485/RS-422 transceiver.
• It provides robust communication in noisy industrial environments.
• This IC offers excellent data rate capability, making it suitable for applications requiring fast transmission speeds.
• It operates over a wide temperature range, ensuring reliability in various operating conditions.

Package

The MAX845EUA+ is available in a small 8-pin µMAX package.

Essence

The essence of the MAX845EUA+ lies in its ability to provide reliable and high-speed communication while ensuring signal integrity and noise immunity.

Packaging/Quantity

This IC is typically sold in reels or tubes, with a quantity of 250 units per reel/tube.

Specifications

• Supply Voltage: 4.5V to 5.5V
• Data Rate: Up to 16Mbps
• Operating Temperature Range: -40°C to +85°C
• Number of Pins: 8
• Isolation Voltage: 2.5kV
• ESD Protection: ±15kV (Human Body Model)

Detailed Pin Configuration

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 (Supply Voltage)
7. RO (Receiver Output)
8. DI (Driver Input)

Functional Features

• High-speed data transmission: The MAX845EUA+ supports data rates of up to 16Mbps, enabling fast and efficient communication.
• Robust isolation: With an isolation voltage of 2.5kV, this IC ensures reliable signal isolation, protecting sensitive components from electrical noise and potential ground loops.
• Driver and receiver enable control: The DE and RE pins allow for flexible control of the driver and receiver functions, enabling efficient power management and bus control.

Advantages and Disadvantages

Advantages

• High-speed data transmission capability
• Robust isolation for noise immunity
• Flexible driver and receiver enable control
• Wide operating temperature range

Disadvantages

• Limited pin count may restrict functionality in complex applications
• Requires external components for complete circuit implementation

Working Principles

The MAX845EUA+ operates as a transceiver by converting the differential signals from an RS-485/RS-422 bus to single-ended signals suitable for interfacing with other electronic components. It incorporates isolation circuitry to protect against noise and voltage differences between different parts of the system. The driver and receiver enable pins provide control over the direction of data flow and allow for efficient power management.

Detailed Application Field Plans

The MAX845EUA+ finds application in various fields, including: 1. Industrial automation systems 2. Building automation and control 3. Motor control systems 4. Instrumentation and measurement equipment 5. Communication networks 6. Automotive electronics

Detailed and Complete Alternative Models

1. SN65HVD485E - Texas Instruments
2. ADM2483BRWZ - Analog Devices
3. LTC2862IDD#PBF - Linear Technology
4. ISO35T - Texas Instruments
5. MAX3485CPA+ - Maxim Integrated

These alternative models offer similar functionality and can be considered as alternatives to the MAX845EUA+ depending on specific requirements.

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