OPA134PAG4 - English Editing Encyclopedia Entry

Product Overview

Category: Integrated Circuit (IC)

Use: The OPA134PAG4 is a high-performance audio operational amplifier designed for precision audio applications. It is commonly used in audio equipment such as mixers, amplifiers, and professional audio systems.

Characteristics: - High precision: The OPA134PAG4 offers excellent accuracy and low distortion, making it suitable for high-fidelity audio reproduction. - Low noise: It features a low noise floor, ensuring minimal interference and preserving the integrity of the audio signal. - Wide bandwidth: With a wide frequency response range, this operational amplifier can handle a broad spectrum of audio signals. - High output current: The OPA134PAG4 can deliver a significant amount of current, enabling it to drive various audio loads. - Stable operation: It exhibits stable performance even under challenging operating conditions.

Package: The OPA134PAG4 comes in a small outline package (SOIC) with 8 pins. This compact form factor allows for easy integration into audio circuit designs.

Essence: The OPA134PAG4 is an essential component in audio systems, providing accurate amplification and signal processing capabilities.

Packaging/Quantity: The OPA134PAG4 is typically sold in reels or tubes, containing a specific quantity of ICs per package. The exact packaging and quantity may vary depending on the supplier.

Specifications

• Supply Voltage Range: ±2.5V to ±18V
• Input Offset Voltage: 0.25mV (maximum)
• Input Bias Current: 1nA (maximum)
• Gain Bandwidth Product: 8MHz (typical)
• Slew Rate: 20V/µs (typical)
• Output Current: 40mA (maximum)
• Operating Temperature Range: -40°C to 85°C

Detailed Pin Configuration

The OPA134PAG4 features the following pin configuration:

1. OUT: Output pin
2. V-: Negative power supply pin
3. IN-: Inverting input pin
4. IN+: Non-inverting input pin
5. V+: Positive power supply pin
6. NC: No connection (unused pin)
7. BAL/NC: Balance control or no connection (unused pin)
8. N/C: No connection (unused pin)

Functional Features

• High gain: The OPA134PAG4 provides a high open-loop gain, ensuring accurate amplification of audio signals.
• Low distortion: It maintains low harmonic distortion levels, preserving the original audio quality.
• Unity-gain stable: The operational amplifier remains stable even at unity gain, allowing for various circuit configurations.
• Short-circuit protection: It incorporates internal protection mechanisms to prevent damage in case of output short circuits.

Advantages and Disadvantages

Advantages: - High precision and low distortion for accurate audio reproduction. - Wide bandwidth enables handling of diverse audio signals. - Stable operation under challenging conditions. - Internal protection against short circuits.

Disadvantages: - Limited output current compared to some specialized audio amplifiers. - Higher cost compared to lower-end audio operational amplifiers.

Working Principles

The OPA134PAG4 operates based on the principles of operational amplifiers. It utilizes differential input stages, feedback loops, and output stages to amplify and process audio signals accurately. By carefully controlling the voltage and current within the IC, it achieves high precision and low distortion amplification.

Detailed Application Field Plans

The OPA134PAG4 finds applications in various audio-related fields, including: 1. Professional audio equipment: Mixers, preamplifiers, and equalizers. 2. Hi-Fi audio systems: Amplifiers, CD players, and DACs. 3. Studio recording equipment: Microphone preamplifiers and monitor controllers. 4. Musical instruments: Guitar amplifiers and effects processors. 5. Automotive audio systems: Head units and amplifiers.

Detailed and Complete Alternative Models

1. OPA2134: A higher-performance alternative with improved specifications.
2. TL072: A general-purpose operational amplifier suitable for audio applications.
3. NE5532: A dual operational amplifier offering low noise and high output drive capability.
4. LM4562: An audio operational amplifier known for its exceptional audio performance.

These alternative models provide different trade-offs in terms of cost, performance, and specific application requirements.

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