MAX982ESA+ - English Editing Encyclopedia Entry

Product Overview

Category: Integrated Circuits (ICs)

Use: The MAX982ESA+ is an integrated circuit that belongs to the audio amplifier category. It is specifically designed for high-performance audio applications.

Characteristics: - High-quality audio amplification - Low distortion and noise levels - Wide frequency response range - Compact package size - Easy integration into audio systems

Package: The MAX982ESA+ is available in a small outline SOIC-8 package, which allows for easy mounting on printed circuit boards.

Essence: This audio amplifier IC provides reliable and efficient amplification of audio signals, ensuring high fidelity sound reproduction.

Packaging/Quantity: The MAX982ESA+ is typically sold in reels or tubes, with a quantity of 250 units per reel/tube.

Specifications

• Supply Voltage Range: 2.7V to 5.5V
• Output Power: Up to 1W
• Total Harmonic Distortion (THD): <0.1%
• Signal-to-Noise Ratio (SNR): >90dB
• Operating Temperature Range: -40°C to +85°C

Pin Configuration

The MAX982ESA+ features the following pin configuration:

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| | --| VDD OUT |-- Pin 1: VDD - Power supply voltage input --| GND IN- |-- Pin 2: GND - Ground reference --| IN+ IN+ |-- Pin 3: IN+ - Positive audio input --| IN- IN- |-- Pin 4: IN- - Negative audio input --| SHDN BIAS |-- Pin 5: SHDN - Shutdown control input --| BIAS BIAS |-- Pin 6: BIAS - Bias voltage output --| OUT GND |-- Pin 7: OUT - Audio output --| GND VDD |-- Pin 8: GND - Ground reference |___________| ```

Functional Features

• High gain and low noise amplification of audio signals
• Shutdown control for power-saving mode
• Bias voltage output for biasing external components
• Short-circuit and thermal protection mechanisms
• Wide supply voltage range for versatile applications

Advantages and Disadvantages

Advantages: - High-quality audio amplification with low distortion - Compact package size for space-constrained designs - Versatile supply voltage range allows for flexible integration - Shutdown control feature for power-saving applications - Built-in protection mechanisms ensure reliable operation

Disadvantages: - Limited output power compared to higher wattage amplifiers - Requires external components for complete audio system integration - Sensitive to improper grounding or noise interference

Working Principles

The MAX982ESA+ operates as a class AB audio amplifier. It amplifies the input audio signal using internal circuitry, providing a clean and amplified output signal. The bias voltage output helps in biasing external components, ensuring optimal performance. The shutdown control input allows for power-saving mode when the amplifier is not in use.

Detailed Application Field Plans

The MAX982ESA+ finds applications in various audio systems, including: 1. Portable audio devices (e.g., smartphones, MP3 players) 2. Home theater systems 3. Car audio systems 4. Professional audio equipment (e.g., mixers, amplifiers) 5. Gaming consoles and multimedia devices

Detailed and Complete Alternative Models

1. LM386 - Low Voltage Audio Power Amplifier
2. TPA3116D2 - Class D Audio Amplifier
3. NJM2073D - Dual Operational Amplifier with Mute
4. TDA7294 - Audio Power Amplifier

These alternative models offer similar functionality and can be considered as alternatives to the MAX982ESA+ based on specific requirements and design constraints.

In conclusion, the MAX982ESA+ is a high-performance audio amplifier IC that provides reliable amplification of audio signals with low distortion and noise levels. Its compact package size and versatile supply voltage range make it suitable for various audio applications. However, it has limitations in terms of output power and requires external components for complete integration.