AD8397ARZ

Product Overview

• Category: Integrated Circuit (IC)
• Use: Audio Amplifier
• Characteristics: High-performance, low-distortion, wide bandwidth
• Package: SOIC (Small Outline Integrated Circuit)
• Essence: Power amplifier for audio applications
• Packaging/Quantity: Tape and Reel, 2500 units per reel

Specifications

• Supply Voltage Range: ±2.5V to ±18V
• Output Power: 1.4W (8Ω load, Vcc = ±12V)
• Total Harmonic Distortion + Noise (THD+N): 0.005% (1kHz, 8Ω load, Vcc = ±12V)
• Bandwidth: 1MHz (-3dB)
• Input Bias Current: 1.5μA (typical)
• Shutdown Current: 0.1μA (typical)

Pin Configuration

The AD8397ARZ has a total of 8 pins arranged as follows:

```

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| | --| V+ OUT |-- --| IN- GND |-- --| IN+ V- |-- --| SHDN NC |-- |___________| ```

Functional Features

• High output power capability
• Low distortion and noise
• Wide supply voltage range
• Shutdown mode for power saving
• Thermal shutdown protection

Advantages

• Excellent audio performance with low distortion
• Wide operating voltage range allows flexibility in system design
• Shutdown mode helps conserve power when not in use
• Thermal shutdown protection prevents damage due to excessive heat

Disadvantages

• Limited output power compared to some other audio amplifiers
• Requires external components for proper operation
• Higher cost compared to lower-end audio amplifiers

Working Principles

The AD8397ARZ is a class AB audio amplifier that amplifies low-level audio signals to drive speakers or headphones. It operates by receiving an input audio signal through the IN+ and IN- pins, which are then amplified and delivered to the OUT pin. The amplifier can be powered using a dual power supply ranging from ±2.5V to ±18V. The SHDN pin allows the amplifier to enter a low-power shutdown mode when not in use.

Detailed Application Field Plans

The AD8397ARZ is commonly used in various audio applications, including:

1. Portable audio devices: Provides high-quality audio amplification for portable music players, smartphones, and tablets.
2. Home audio systems: Used as a power amplifier in stereo receivers, amplifiers, and home theater systems.
3. Automotive audio systems: Amplifies audio signals in car audio systems, providing enhanced sound quality.
4. Professional audio equipment: Suitable for use in mixers, amplifiers, and audio recording equipment.

Alternative Models

1. TPA3116D2: A popular audio amplifier IC with similar performance characteristics.
2. LM386: A low-cost audio amplifier IC suitable for basic audio amplification needs.
3. MAX9744: Another high-performance audio amplifier IC with integrated volume control.

These alternative models offer different features and price points, allowing users to choose based on their specific requirements.

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