OPA2228U

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OPA2228U

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規格

屬性 價值
Package / Case Bulk,Tube
Part Status Active
Amplifier Type General Purpose
Number of Circuits 2
Slew Rate 11V/µs
Gain Bandwidth Product 33 MHz
Current - Input Bias 2.5 nA
Voltage - Input Offset 5 µV
Supply Current 3.7mA (x2 Channels)
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

概述

Description

The OPA2228U is a precision operational amplifier designed for high-performance applications requiring low noise and low distortion. Manufactured by Texas Instruments, it features a dual configuration, providing two op-amps in a single package, which is ideal for compact designs. The device boasts ultra-low noise levels, making it suitable for applications like audio processing, instrumentation, and medical equipment where signal integrity is crucial.
Key specifications include a low noise figure of 3 nV/√Hz and a low total harmonic distortion. The OPA2228U offers high slew rates and a wide bandwidth, ensuring fast and accurate signal processing. It operates on a wide supply voltage range, enhancing its versatility across various applications.
The OPA2228U comes in an 8-pin SOIC package, ensuring ease of integration into PCBs. With its combination of precision, low noise, and high-speed performance, the OPA2228U is a reliable choice for engineers looking to maintain signal fidelity in demanding environments.

Equivalent

The OPA2228U is a precision operational amplifier. Equivalent products include:
1. Analog Devices OP275 - A low-noise, high-performance op-amp.
2. LT1124 from Analog Devices/Linear Technology - Offers low noise and precision.
3. MAX44250 from Maxim Integrated - Features precision and low offset voltage.
4. ADA4077-2 from Analog Devices - High precision and low noise.
These alternatives provide similar functionalities and performance characteristics for applications where the OPA2228U is used. Always verify specific requirements and specifications before substituting.

Features

The OPA2228U is a high-precision operational amplifier known for its low noise and high speed. Key features include:
1. Low Noise: It has a low-voltage noise density of 3 nV/√Hz, making it suitable for applications requiring high signal fidelity.
2. High Speed: The amplifier offers a slew rate of 10 V/µs and a gain bandwidth product of 33 MHz, enabling it to handle fast signal processing tasks efficiently.
3. Low Distortion: It maintains low total harmonic distortion, which is crucial for high-quality audio and precision measurement applications.
4. Wide Supply Range: The OPA2228U operates with dual supplies ranging from ±2.5 V to ±18 V, offering flexibility across different power supply configurations.
5. Precision: With low input offset voltage and drift, it ensures high accuracy for precision applications.
6. Wide Applications: This operational amplifier is suitable for use in audio processing, medical instrumentation, data acquisition systems, and other applications requiring high precision and low noise.
These features make the OPA2228U a versatile choice for various high-performance analog signal processing tasks.

Pinout

The OPA2228U is a dual operational amplifier with an 8-pin configuration. Here’s a brief overview of its pin functions:
1. Pin 1 (Offset Null 1): Used for offset voltage nulling for the first op-amp.
2. Pin 2 (Inverting Input 1): Inverting input terminal for the first op-amp.
3. Pin 3 (Non-Inverting Input 1): Non-inverting input terminal for the first op-amp.
4. Pin 4 (V- or GND): Negative power supply voltage or ground.
5. Pin 5 (Non-Inverting Input 2): Non-inverting input terminal for the second op-amp.
6. Pin 6 (Inverting Input 2): Inverting input terminal for the second op-amp.
7. Pin 7 (Offset Null 2): Used for offset voltage nulling for the second op-amp.
8. Pin 8 (V+ or Vcc): Positive power supply voltage.
The OPA2228U is known for its low noise, high precision, and high-speed performance, making it suitable for a variety of applications such as precision data acquisition, process controls, and medical instrumentation.

Manufacturer

The OPA2228U is manufactured by Texas Instruments (TI). Texas Instruments is a multinational corporation based in the United States, known for designing and manufacturing semiconductors and various integrated circuits. They are a leader in the electronics industry, providing components essential for a wide range of electronic devices and applications, including consumer electronics, automotive, industrial automation, and communication technologies. TI is particularly known for its analog chips and embedded processors, serving a diverse set of industries with innovative solutions to meet technological demands.

Application

The OPA2228U is a precision operational amplifier known for its low noise, low distortion, and high-speed performance. It is commonly used in audio applications, including preamplifiers and audio processing equipment, due to its ability to deliver high-quality sound. Additionally, it is suitable for use in signal conditioning and data acquisition systems, where precision and accuracy are critical. Other application areas include medical instrumentation, test and measurement equipment, and sensor interfacing, where its low offset voltage and drift improve measurement reliability. Its high slew rate and wide bandwidth also make it ideal for fast and dynamic signal processing applications.

Package

The OPA2228U is an operational amplifier that comes in a surface-mount package. Specifically, it is available in an SOIC-8 (Small Outline Integrated Circuit) package type, which is a common choice for its compact size and suitability for high-density circuit board applications.

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