MAX4461TEUT-T

Product Overview

• Category: Integrated Circuit (IC)
• Use: Audio Amplifier
• Characteristics:
  • Low noise
  • Wide bandwidth
  • Small package size
• Package: SOT23-6
• Essence: High-performance audio amplifier
• Packaging/Quantity: Tape and Reel, 3000 units per reel

Specifications

• Supply Voltage Range: 2.7V to 5.5V
• Quiescent Current: 0.65mA
• Gain Bandwidth Product: 15MHz
• Input Noise Voltage: 3.4nV/√Hz
• Output Power: 150mW
• THD+N: 0.01%
• Shutdown Current: 0.1µA

Pin Configuration

The MAX4461TEUT-T has a total of 6 pins arranged as follows:

```

---

| | --| VDD OUT |-- Pin 1: VDD (Power Supply) --| GND IN- |-- Pin 2: GND (Ground) --| SHDN IN+ |-- Pin 3: SHDN (Shutdown Control) --| NC FB |-- Pin 4: NC (No Connection) --| NC FB |-- Pin 5: FB (Feedback) --| GND IN- |-- Pin 6: IN- (Inverting Input) |___________| ```

Functional Features

• Low input-referred voltage noise
• Wide bandwidth for accurate audio reproduction
• Single-supply operation from 2.7V to 5.5V
• Shutdown mode for power-saving applications
• Small package size for space-constrained designs

Advantages and Disadvantages

Advantages: - Low noise performance ensures high-quality audio amplification - Wide bandwidth allows for accurate reproduction of audio signals - Small package size enables compact and portable designs

Disadvantages: - Limited output power compared to higher wattage amplifiers - Noisy environment may affect the overall audio quality

Working Principles

The MAX4461TEUT-T is an audio amplifier IC that operates on a single supply voltage. It utilizes a differential input stage to amplify audio signals with low noise and high fidelity. The inverting input (IN-) and non-inverting input (IN+) receive the audio signal, which is then amplified by the internal circuitry. The feedback pin (FB) provides stability and controls the gain of the amplifier. The shutdown pin (SHDN) allows the device to enter a low-power mode when not in use.

Detailed Application Field Plans

The MAX4461TEUT-T is commonly used in various audio applications, including:

1. Portable Audio Devices: Provides amplification for headphones, earphones, and portable speakers.
2. Home Theater Systems: Amplifies audio signals for surround sound speakers.
3. Automotive Audio Systems: Enhances audio quality in car audio systems.
4. Musical Instruments: Amplifies signals from electric guitars, keyboards, and other musical instruments.
5. Communication Systems: Boosts audio signals in intercoms, public address systems, and telecommunication devices.

Detailed and Complete Alternative Models

1. LM386: Low voltage audio power amplifier with similar characteristics.
2. TPA3116D2: Class D audio amplifier with higher output power.
3. AD823: Precision instrumentation amplifier suitable for audio applications.
4. TDA7294: High-performance audio amplifier with built-in thermal protection.
5. STA540: Dual/quad power amplifier for audio applications.

(Note: This list is not exhaustive and there are several other alternative models available in the market.)

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