MAX9812LEXT+T

Product Overview

• Category: Integrated Circuit (IC)
• Use: Audio Amplifier
• Characteristics: Low-power, high-performance, surface-mount package
• Package: 6-pin SOT23
• Essence: The MAX9812LEXT+T is a low-power audio amplifier IC designed for various applications requiring amplification of audio signals.
• Packaging/Quantity: Available in tape and reel packaging with 3,000 units per reel.

Specifications

• Supply Voltage: 2.4V to 5.5V
• Quiescent Current: 0.8mA
• Output Power: 1.4W
• Gain: 20dB to 40dB
• Input Impedance: 10kΩ
• Output Impedance: 8Ω
• Operating Temperature Range: -40°C to +85°C

Pin Configuration

The MAX9812LEXT+T has the following pin configuration:

1. VDD: Supply voltage input
2. GND: Ground reference
3. IN+: Positive audio signal input
4. IN-: Negative audio signal input
5. SHDN: Shutdown control input
6. OUT: Amplified audio signal output

Functional Features

• Low quiescent current consumption
• Wide supply voltage range
• Adjustable gain settings
• Shutdown mode for power-saving operation
• Short-circuit and thermal protection

Advantages and Disadvantages

Advantages

• Low power consumption
• Small surface-mount package
• High-quality audio amplification
• Flexible gain adjustment

Disadvantages

• Limited output power compared to higher wattage amplifiers
• Single-channel audio amplification only

Working Principles

The MAX9812LEXT+T operates as a class AB audio amplifier. It amplifies the input audio signal using an internal gain stage and delivers the amplified signal to the output pin. The gain can be adjusted externally to suit different application requirements. The IC also features a shutdown mode, allowing it to enter a low-power state when not in use.

Detailed Application Field Plans

The MAX9812LEXT+T is suitable for various audio amplification applications, including:

1. Portable audio devices
2. Headphone amplifiers
3. Wireless speakers
4. Intercom systems
5. Public address systems

Alternative Models

Here are some alternative models that offer similar functionality:

1. MAX9814LEXT+T
2. MAX9816LEXT+T
3. MAX9818LEXT+T
4. MAX9820LEXT+T

These models provide options with different power ratings, gain ranges, and package types, allowing users to choose the most suitable option for their specific needs.

In conclusion, the MAX9812LEXT+T is a low-power audio amplifier IC that offers high-performance amplification for various audio applications. Its small package size, adjustable gain settings, and low quiescent current make it an ideal choice for portable audio devices, headphones, and other audio amplification systems.

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