OPA2131UAG4 - English Editing Encyclopedia Entry

Product Overview

Category: Integrated Circuit (IC)

Use: The OPA2131UAG4 is a high-performance audio operational amplifier designed for use in professional audio equipment, musical instruments, and high-fidelity audio systems.

Characteristics: - High voltage gain - Low noise - Wide bandwidth - High slew rate - Low distortion

Package: The OPA2131UAG4 is available in an 8-pin SOIC (Small Outline Integrated Circuit) package.

Essence: This operational amplifier is specifically engineered to provide exceptional audio signal amplification with minimal noise and distortion, making it ideal for applications that require high-quality audio reproduction.

Packaging/Quantity: The OPA2131UAG4 is typically sold in reels or tubes containing a quantity of 250 units per package.

Specifications

• Supply Voltage Range: ±2.5V to ±18V
• Input Offset Voltage: 0.5mV (maximum)
• Input Bias Current: 5nA (maximum)
• Input Noise Voltage: 8nV/√Hz (typical)
• Gain Bandwidth Product: 8MHz (typical)
• Slew Rate: 20V/µs (typical)
• Total Harmonic Distortion: 0.00008% (typical)

Detailed Pin Configuration

The OPA2131UAG4 features the following pin configuration:

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| | --| V- OUT |-- Pin 1: Output --| V+ IN- |-- Pin 2: Non-Inverting Input --| NC IN+ |-- Pin 3: Inverting Input --| VCC NC |-- Pin 4: Not Connected --| NC NC |-- Pin 5: Not Connected --| NC NC |-- Pin 6: Not Connected --| VEE NC |-- Pin 7: Negative Power Supply --| NC NC |-- Pin 8: Not Connected |___________| ```

Functional Features

• High voltage gain allows for amplification of weak audio signals without introducing significant distortion.
• Low noise ensures that the amplified audio signal remains clean and free from unwanted background noise.
• Wide bandwidth enables accurate reproduction of high-frequency audio content.
• High slew rate allows for fast response to transient audio signals, preserving the dynamic range of the audio.
• Low distortion ensures faithful reproduction of the original audio source.

Advantages and Disadvantages

Advantages: - High-performance audio amplifier with excellent signal fidelity. - Suitable for professional audio equipment and high-fidelity audio systems. - Low noise and distortion contribute to superior audio quality. - Wide supply voltage range provides flexibility in various applications.

Disadvantages: - Limited availability in certain regions or markets. - Relatively higher cost compared to standard audio amplifiers.

Working Principles

The OPA2131UAG4 operates as a voltage amplifier, taking an input audio signal and amplifying it to a higher voltage level. It utilizes a combination of high-gain operational amplifier circuitry and precision components to achieve low noise, low distortion, and wide bandwidth characteristics. The amplifier is designed to faithfully reproduce the input audio signal with minimal alteration or degradation.

Detailed Application Field Plans

The OPA2131UAG4 is well-suited for a variety of audio applications, including: - Professional audio mixing consoles - Studio recording equipment - Musical instrument amplifiers - High-end audio preamplifiers - Audiophile-grade headphone amplifiers - Hi-Fi stereo systems

Detailed and Complete Alternative Models

• OPA2132UAG4: Similar to OPA2131UAG4, but with a dual operational amplifier configuration.
• OPA1612AID: Precision audio operational amplifier with ultra-low distortion and noise performance.
• LM4562NA/NOPB: High-performance audio operational amplifier with excellent signal fidelity.

These alternative models offer similar or enhanced features and can be considered as substitutes for the OPA2131UAG4 in various audio applications.

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