MAX982EPA

Product Overview

• Category: Integrated Circuit (IC)
• Use: Audio Amplifier
• Characteristics: High-performance, low-power, single-supply audio amplifier
• Package: 8-pin PDIP (Plastic Dual In-line Package)
• Essence: Amplifies audio signals with high fidelity and efficiency
• Packaging/Quantity: Available in tubes or reels, quantity varies

Specifications

• Supply Voltage Range: 2.7V to 5.5V
• Output Power: 1.25W (4Ω load, 5V supply)
• Total Harmonic Distortion + Noise (THD+N): 0.08% (1kHz, 1W, 8Ω load)
• Signal-to-Noise Ratio (SNR): 95dB (A-weighted)
• Shutdown Current: 0.01μA (typical)

Pin Configuration

The MAX982EPA has the following pin configuration:

1. IN-
2. IN+
3. GND
4. SHDN
5. VDD
6. OUT
7. BIAS
8. BYPASS

Functional Features

• Single-supply operation simplifies design
• Low quiescent current extends battery life
• Thermal shutdown protection prevents overheating
• Short-circuit and overcurrent protection ensures device safety
• Wide supply voltage range allows flexibility in power source selection

Advantages and Disadvantages

Advantages: - High-quality audio amplification - Low power consumption - Compact package size - Protection features for reliable operation

Disadvantages: - Limited output power compared to higher wattage amplifiers - Not suitable for high-power audio applications

Working Principles

The MAX982EPA is a class AB audio amplifier that operates on a single supply voltage. It utilizes internal circuitry to amplify audio signals with high fidelity and efficiency. The amplifier accepts differential input signals (IN+ and IN-) and produces an amplified output signal at the OUT pin. The BIAS pin provides a bias voltage for the internal circuitry, while the BYPASS pin allows for external filtering if desired. The SHDN pin controls the amplifier's shutdown mode.

Detailed Application Field Plans

The MAX982EPA is commonly used in various audio applications, including:

1. Portable audio devices: Provides high-quality audio amplification for smartphones, tablets, and portable media players.
2. Headphone amplifiers: Enhances audio performance in headphone amplifiers, delivering clear and powerful sound.
3. Multimedia systems: Amplifies audio signals in multimedia systems such as laptops, desktop computers, and gaming consoles.
4. Automotive audio systems: Used to amplify audio signals in car audio systems, ensuring optimal sound quality.

Detailed and Complete Alternative Models

• MAX98306
• LM386
• TPA3116D2
• STA540
• TDA7297

These alternative models offer similar functionality and can be considered as alternatives to the MAX982EPA based on specific requirements and design constraints.

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