MAX4477AUA+T

Product Overview

• Category: Integrated Circuit (IC)
• Use: Amplifier
• Characteristics: Low-noise, low-distortion, rail-to-rail output, unity-gain stable
• Package: 8-pin µMAX® package
• Essence: High-performance audio amplifier
• Packaging/Quantity: Tape and Reel, 2500 units per reel

Specifications

• Supply Voltage Range: 2.5V to 5.5V
• Input Offset Voltage: ±1mV (max)
• Gain Bandwidth Product: 3MHz (typ)
• Input Bias Current: 1pA (typ)
• Output Current: 60mA (max)
• Operating Temperature Range: -40°C to +85°C

Pin Configuration

The MAX4477AUA+T has the following pin configuration:

```

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

Functional Features

• Low noise and distortion for high-quality audio applications
• Rail-to-rail output swing allows maximum utilization of the supply voltage range
• Unity-gain stable, ensuring stability in various circuit configurations
• Shutdown mode for power-saving operation

Advantages and Disadvantages

Advantages: - High performance with low noise and distortion - Wide supply voltage range for flexibility in different applications - Small package size for space-constrained designs - Shutdown mode for power-saving operation

Disadvantages: - Limited output current capability compared to some other amplifiers - Not suitable for high-power audio applications

Working Principles

The MAX4477AUA+T is a high-performance audio amplifier designed to provide low noise and distortion amplification for audio signals. It operates on a supply voltage range of 2.5V to 5.5V, making it suitable for various portable and battery-powered applications.

The amplifier has rail-to-rail output swing capability, allowing it to utilize the full supply voltage range and provide maximum signal amplitude. This feature is particularly useful in applications where the input signal swings close to the supply rails.

The MAX4477AUA+T is unity-gain stable, ensuring stability even when used in circuits with a gain of one. This makes it versatile for different circuit configurations and simplifies design considerations.

Additionally, the amplifier includes a shutdown mode, which can be activated to minimize power consumption when the amplifier is not in use.

Detailed Application Field Plans

The MAX4477AUA+T is commonly used in the following applications:

1. Portable audio devices: Provides high-quality audio amplification for smartphones, tablets, and portable media players.
2. Headphone amplifiers: Enhances the audio output quality for headphones and earphones.
3. Audio line drivers: Boosts the audio signal level for long-distance transmission or driving multiple loads.
4. Active speakers: Amplifies the audio signal for powered speakers, ensuring accurate reproduction of sound.

Detailed and Complete Alternative Models

• MAX4478AUA+T
• MAX4479AUA+T
• MAX4480AUA+T
• MAX4481AUA+T
• MAX4482AUA+T

These alternative models offer similar performance characteristics and pin configurations, providing options for different design requirements.

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