OPA211IDGKT

Product Overview

Category: Integrated Circuits (ICs)

Use: The OPA211IDGKT is a precision operational amplifier designed for high-performance audio applications. It offers low noise, low distortion, and high output current capability, making it suitable for use in audio amplifiers, headphone amplifiers, and other audio-related circuits.

Characteristics: - Low noise: The OPA211IDGKT features a low input voltage noise density, which helps maintain signal integrity in audio applications. - Low distortion: It provides low total harmonic distortion (THD) and excellent linearity, ensuring accurate reproduction of audio signals. - High output current capability: With a high output current drive, the OPA211IDGKT can deliver sufficient power to drive headphones or speakers.

Package: The OPA211IDGKT comes in a small 8-pin VSSOP package, which is compact and suitable for space-constrained designs.

Essence: The essence of the OPA211IDGKT lies in its ability to provide high-quality audio amplification with low noise and distortion.

Packaging/Quantity: The OPA211IDGKT is typically available in reels containing 2500 units.

Specifications

• Supply Voltage Range: ±2.25V to ±18V
• Input Offset Voltage: 1.5mV (maximum)
• Input Bias Current: 1nA (maximum)
• Gain Bandwidth Product: 20MHz
• Slew Rate: 13V/µs
• Output Current: 50mA
• Operating Temperature Range: -40°C to +125°C

Pin Configuration

The OPA211IDGKT has the following pin configuration:

___________ OUT | 1 8 | V+ IN+ | 2 7 | V- IN- | 3 6 | NC NC | 4 5 | NC ‾‾‾‾‾‾‾‾‾‾‾‾

Functional Features

1. Low noise and distortion: The OPA211IDGKT ensures high-fidelity audio reproduction by minimizing noise and distortion.
2. High output current capability: It can drive headphones and speakers directly without the need for additional amplification stages.
3. Wide supply voltage range: The OPA211IDGKT operates over a wide range of supply voltages, making it versatile for various applications.
4. Rail-to-rail input and output: It supports input and output signals that can swing close to the supply rails, maximizing dynamic range.

Advantages and Disadvantages

Advantages: - High-quality audio amplification with low noise and distortion. - Versatile operating voltage range. - Compact package suitable for space-constrained designs. - Directly drives headphones and speakers.

Disadvantages: - Limited output current compared to dedicated power amplifiers. - Higher cost compared to standard operational amplifiers.

Working Principles

The OPA211IDGKT is based on a precision operational amplifier architecture. It utilizes advanced circuitry to achieve low noise, low distortion, and high output current capability. The internal design includes techniques such as low-noise input transistors, precision resistors, and high-speed output stages to ensure accurate and faithful audio signal amplification.

Application Field Plans

The OPA211IDGKT finds application in various audio-related circuits, including: - Audio amplifiers - Headphone amplifiers - Active filters - Audio mixers - Audio preamplifiers

Its high performance and low noise characteristics make it suitable for professional audio equipment, high-end consumer audio systems, and other applications where accurate audio reproduction is critical.

Alternative Models

• OPA2134: A dual operational amplifier with similar performance characteristics.
• LM4562: Another high-performance audio operational amplifier.
• AD797: Precision operational amplifier with ultra-low noise and distortion.

These alternative models offer comparable features and can be considered as substitutes for the OPA211IDGKT in audio applications.

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