OPA4228UA

Product Overview

Category

OPA4228UA belongs to the category of operational amplifiers (op-amps).

Use

It is commonly used in electronic circuits for amplification and signal processing purposes.

Characteristics

• High gain: OPA4228UA offers a high open-loop gain, making it suitable for applications requiring precise amplification.
• Low noise: It has low input and output noise levels, ensuring accurate signal reproduction.
• Wide bandwidth: The op-amp provides a wide frequency response, allowing it to handle a broad range of signals.
• Low power consumption: OPA4228UA operates on low power, making it energy-efficient.
• Rail-to-rail inputs and outputs: It supports input and output voltage ranges that span from the negative supply rail to the positive supply rail.

Package

OPA4228UA is available in a small outline integrated circuit (SOIC) package.

Essence

The essence of OPA4228UA lies in its ability to amplify and process electrical signals accurately and efficiently.

Packaging/Quantity

OPA4228UA is typically packaged in reels or tubes, with quantities varying depending on the supplier. Common packaging options include 2500 units per reel or 50 units per tube.

Specifications

• Supply voltage: ±2.5V to ±18V
• Input offset voltage: 1mV (maximum)
• Input bias current: 10nA (maximum)
• Gain bandwidth product: 10MHz
• Slew rate: 7V/μs
• Operating temperature range: -40°C to 125°C

Detailed Pin Configuration

OPA4228UA features a dual in-line package (DIP) with eight pins. The pin configuration is as follows:

Pin 1: Non-inverting input (A+) Pin 2: Inverting input (A-) Pin 3: V- Pin 4: Output (AOUT) Pin 5: Offset null Pin 6: V+ Pin 7: Inverting input (B-) Pin 8: Non-inverting input (B+)

Functional Features

1. High precision amplification: OPA4228UA offers precise amplification of input signals, ensuring accurate output representation.
2. Low noise operation: The op-amp minimizes unwanted noise interference, resulting in clean and clear signal reproduction.
3. Wide voltage range compatibility: It supports a wide range of input and output voltages, making it versatile for various applications.
4. Stable performance: OPA4228UA exhibits excellent stability over temperature variations and load conditions.
5. Low power consumption: The op-amp consumes minimal power, making it suitable for battery-powered devices.

Advantages and Disadvantages

Advantages

• High gain and low noise enable accurate signal amplification.
• Wide bandwidth allows for handling diverse frequency ranges.
• Rail-to-rail inputs and outputs provide flexibility in voltage range compatibility.
• Stable performance ensures reliable operation.
• Low power consumption makes it energy-efficient.

Disadvantages

• Limited availability in certain package options.
• Higher cost compared to some other op-amps with similar specifications.

Working Principles

OPA4228UA operates based on the principles of differential amplification. It amplifies the voltage difference between its two input terminals, producing an output voltage proportional to this difference. By adjusting the feedback network, the gain and characteristics of the amplifier can be tailored to specific requirements.

Detailed Application Field Plans

OPA4228UA finds applications in various fields, including:

1. Audio amplification: It is used in audio equipment such as preamplifiers and headphone amplifiers to ensure accurate and high-quality sound reproduction.
2. Instrumentation: OPA4228UA is employed in precision measurement instruments, providing amplification and signal conditioning for accurate readings.
3. Communication systems: It is utilized in communication circuits to amplify weak signals and improve signal-to-noise ratio.
4. Industrial control: OPA4228UA plays a role in industrial control systems, providing amplification and signal processing capabilities for precise control of machinery and processes.

Detailed and Complete Alternative Models

1. LM324: A quad op-amp with similar characteristics and pin configuration.
2. TL072: A dual op-amp offering low noise and high gain.
3. AD822: A precision instrumentation amplifier suitable for sensor signal conditioning.

These alternative models can be considered based on specific application requirements and availability.

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