MAX981ESA

Product Overview

• Category: Integrated Circuit (IC)
• Use: Audio Amplifier
• Characteristics:
  • High gain and low noise
  • Wide frequency response
  • Small package size
  • Low power consumption
• Package: 8-pin SOIC (Small Outline Integrated Circuit)
• Essence: The MAX981ESA is a high-performance audio amplifier IC designed for various applications requiring amplification of audio signals.
• Packaging/Quantity: Available in tape and reel packaging, with 2500 units per reel.

Specifications

• Supply Voltage: 2.7V to 5.5V
• Gain Range: 20dB to 60dB
• Input Impedance: 10kΩ
• Output Impedance: 1.5kΩ
• Total Harmonic Distortion (THD): 0.01%
• Operating Temperature Range: -40°C to +85°C

Pin Configuration

The MAX981ESA features an 8-pin SOIC package with the following pin configuration:

1. VCC: Power supply voltage input
2. GND: Ground reference
3. IN+: Positive audio signal input
4. IN-: Negative audio signal input
5. BYP: Bypass capacitor connection
6. OUT: Amplified audio signal output
7. NC: No connection
8. SHDN: Shutdown control input

Functional Features

• High Gain: The MAX981ESA provides a wide range of gain options, allowing for precise amplification of audio signals.
• Low Noise: With its low noise characteristics, this IC ensures minimal interference and distortion in the amplified audio signal.
• Wide Frequency Response: The device offers a broad frequency response, enabling accurate reproduction of audio across different frequency ranges.
• Small Package Size: The compact 8-pin SOIC package makes it suitable for space-constrained applications.
• Low Power Consumption: The IC operates efficiently with low power consumption, making it ideal for battery-powered devices.

Advantages and Disadvantages

Advantages: - High gain and low noise performance - Wide frequency response for accurate audio reproduction - Compact package size for space-constrained applications - Low power consumption for energy-efficient operation

Disadvantages: - Limited pin configuration options - May require additional external components for specific applications

Working Principles

The MAX981ESA is based on a class AB amplifier architecture. It utilizes a combination of transistors and resistors to amplify the input audio signal. The gain control circuitry allows users to adjust the amplification level according to their requirements. The IC also incorporates various protection features to safeguard against overvoltage, overcurrent, and thermal issues.

Detailed Application Field Plans

The MAX981ESA finds applications in various fields, including: 1. Audio recording and playback devices 2. Communication systems 3. Musical instruments 4. Automotive audio systems 5. Home theater systems 6. Portable audio devices

Alternative Models

Other alternative models that can be considered as replacements or alternatives to the MAX981ESA include: - LM386 - TDA7052 - NJM2073 - STA540 - TPA3110

These models offer similar functionality and characteristics, providing flexibility in choosing the most suitable audio amplifier IC for specific applications.

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