OPA228U

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OPA228U

+БОМ

  • ПроизводительТехасские инструменты

  • Мфр. Часть #OPA228U

  • В наличии1896

365 Дни гарантии качества

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90-гарантия послепродажного дня

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Спецификации

Атрибут Ценность
Package / Case Bulk,Tube
Part Status Active
Amplifier Type General Purpose
Number of Circuits 1
Slew Rate 11V/µs
Gain Bandwidth Product 33 MHz
Current - Input Bias 2.5 nA
Voltage - Input Offset 5 µV
Supply Current 3.7mA
Current - Output / Channel 45 mA
Voltage - Supply Span(Min) 5 V
Voltage - Supply Span(Max) 36 V
Operating Temperature -40°C ~ 85°C
Mounting Type Surface Mount

Обзор

Description

The OPA228U is a high-precision operational amplifier developed by Texas Instruments. It is designed for applications requiring low noise, high speed, and excellent DC performance. The "U" in its name generally denotes a specific package type, commonly an SOIC (Small Outline Integrated Circuit) package, making it suitable for compact designs.
Key features of the OPA228U include:
- Low Voltage Noise: Offers low voltage noise density, which is ideal for applications requiring low-noise amplification of small signals.
- High Slew Rate: Delivers a high slew rate that supports high-speed processing, advantageous for fast data acquisition systems.
- Low Distortion: Ensures signal integrity with minimal distortion, making it suitable for audio applications and precision measurements.
- Wide Bandwidth: Provides a wide gain bandwidth, accommodating a variety of high-frequency applications.
- Precision DC Performance: Exhibits low offset voltage and drift, supporting applications needing stable and precise measurements.
Common applications include high-fidelity audio systems, precision data acquisition systems, and instrumentation. The combination of low noise and wide bandwidth makes the OPA228U a versatile choice for engineers seeking reliable performance in precision analog circuits.

Equivalent

The OPA228U is a precision operational amplifier. Equivalent products include the OPA227U which offers similar specifications. Other potential alternatives are the AD8671 from Analog Devices and the LT1007 from Analog Devices (previously Linear Technology). These alternatives offer similar performance in terms of low offset voltage, low noise, and high precision suitable for various applications. Always verify specific requirements and specifications to ensure compatibility with your application.

Features

The OPA228U is a precision operational amplifier known for its excellent performance characteristics. It provides low noise, low offset voltage, and low drift, making it ideal for precision applications. Key features include:
1. Low Noise: The amplifier offers low voltage noise density, typically around 3 nV/√Hz, which is beneficial for high-accuracy applications.
2. Low Offset Voltage: It has a low offset voltage, typically around 75 µV, which enhances precision in signal processing.
3. Low Drift: The drift over temperature is minimal, leading to stable performance across varying conditions.
4. High Slew Rate: With a slew rate of approximately 20 V/µs, it can handle fast signal changes effectively.
5. Wide Bandwidth: The device features a wide gain bandwidth product, typically 33 MHz, suitable for high-frequency applications.
6. Low Distortion: It maintains low total harmonic distortion, crucial for audio and other high-fidelity applications.
7. Wide Supply Range: The OPA228U operates over a wide supply voltage range (±2.5 V to ±18 V), providing flexibility for various power requirements.
These features make the OPA228U suitable for applications requiring high precision and stability, such as instrumentation, data acquisition, and medical equipment.

Pinout

The OPA228U is an operational amplifier (op-amp) that typically comes in an 8-pin SOIC package. Here is a brief overview of its pin configuration and functions:
1. Pin 1 (Offset Null/V+): Used for offset null adjustment or may be connected to a positive voltage supply.
2. Pin 2 (Inverting Input, -IN): The inverting input of the op-amp.
3. Pin 3 (Non-inverting Input, +IN): The non-inverting input of the op-amp.
4. Pin 4 (V-): The negative power supply pin.
5. Pin 5 (Offset Null): Used for offset null adjustment.
6. Pin 6 (Output, OUT): The output of the op-amp.
7. Pin 7 (V+): The positive power supply pin.
8. Pin 8 (NC or No Connection): Typically not connected.
The OPA228U is designed for high precision applications, featuring low noise, low distortion, and high speed, making it suitable for use in audio processing, data acquisition, and instrumentation systems.

Manufacturer

The OPA228U is manufactured by Texas Instruments (TI). Texas Instruments is a global semiconductor company that designs and manufactures a wide range of electronic components and solutions. Founded in 1930 and headquartered in Dallas, Texas, TI is known for its development of analog chips, embedded processors, and other electronic technologies that serve various industries, including automotive, industrial, personal electronics, and communications. TI is a publicly traded company and is one of the largest and most well-established semiconductor manufacturers in the world.

Application

The OPA228U is a precision operational amplifier known for its low noise, low distortion, and high-speed performance. It is commonly used in applications requiring high accuracy and stability such as:
1. Data Acquisition Systems: Enhances signal integrity with precise measurement.
2. Medical Instrumentation: Utilized in diagnostic equipment for accurate signal processing.
3. Audio Equipment: Ensures low distortion and noise for high-fidelity audio.
4. Industrial Controls: Provides stable and precise control signals.
5. Test and Measurement Devices: Used in oscilloscopes and voltmeters for accurate readings.
6. Transducer Amplifiers: Improves sensor output signal quality.
Its robust performance makes it suitable for both analog circuit designs and precision digital-to-analog/analog-to-digital converters.

Package

The OPA228U is an operational amplifier that comes in a standard SOIC-8 (Small Outline Integrated Circuit) package. This package type is commonly used for its compact size and surface-mount design, suitable for various electronic applications.

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