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INA2128UA
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INA2128UA

Product Overview

Category

INA2128UA belongs to the category of integrated circuit (IC) amplifiers.

Use

It is primarily used for precision instrumentation applications that require accurate amplification of low-level signals.

Characteristics

  • High accuracy and precision
  • Low offset voltage and drift
  • Wide bandwidth
  • Low noise
  • High common-mode rejection ratio (CMRR)
  • Rail-to-rail output swing

Package

INA2128UA is available in a small outline package (SOIC) with 8 pins.

Essence

The essence of INA2128UA lies in its ability to provide precise amplification of low-level signals, making it suitable for various measurement and control applications.

Packaging/Quantity

This product is typically sold in reels or tubes containing multiple units. The exact quantity depends on the supplier and customer requirements.

Specifications

  • Supply Voltage: ±2.25V to ±18V
  • Input Offset Voltage: 50µV (maximum)
  • Input Bias Current: 1nA (maximum)
  • Gain Bandwidth Product: 4MHz (typical)
  • Common-Mode Rejection Ratio: 120dB (typical)
  • Output Swing: Rail-to-Rail

Detailed Pin Configuration

  1. V+
  2. V-
  3. Output
  4. NC (No Connection)
  5. NC (No Connection)
  6. NC (No Connection)
  7. NC (No Connection)
  8. V-

Functional Features

  • Precision amplification of low-level signals
  • Wide operating voltage range
  • High common-mode rejection ratio
  • Low noise and distortion
  • Rail-to-rail output swing

Advantages and Disadvantages

Advantages

  • High accuracy and precision
  • Wide bandwidth
  • Low noise
  • Rail-to-rail output swing

Disadvantages

  • Limited number of pins for additional functionalities
  • Relatively higher cost compared to some other amplifiers

Working Principles

INA2128UA is based on the operational amplifier (op-amp) architecture. It utilizes a differential input stage, followed by gain stages and output buffers. The op-amp amplifies the difference between the two input voltages, providing a high-gain output signal.

Detailed Application Field Plans

  • Precision measurement equipment
  • Data acquisition systems
  • Medical instrumentation
  • Industrial control systems
  • Audio amplification circuits

Detailed and Complete Alternative Models

  1. INA2134: Similar characteristics with additional features such as shutdown mode and adjustable gain.
  2. AD8221: Low-cost alternative with good performance in precision applications.
  3. LT1167: High-precision amplifier with low noise and low power consumption.

Note: This entry provides a brief overview of INA2128UA. For more detailed information, please refer to the product datasheet or consult the manufacturer's documentation.

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技術ソリューションにおける INA2128UA の適用に関連する 10 件の一般的な質問と回答をリストします。

Sure! Here are 10 common questions and answers related to the application of INA2128UA in technical solutions:

  1. Q: What is the INA2128UA?
    A: The INA2128UA is a precision instrumentation amplifier commonly used for amplifying small differential voltages in various technical applications.

  2. Q: What is the input voltage range of the INA2128UA?
    A: The input voltage range of the INA2128UA is typically ±200mV, but it can be extended with external resistors.

  3. Q: What is the gain accuracy of the INA2128UA?
    A: The gain accuracy of the INA2128UA is typically 0.01% or better, ensuring precise amplification of differential signals.

  4. Q: Can the INA2128UA operate from a single power supply?
    A: Yes, the INA2128UA can operate from a single power supply, typically ranging from 2.7V to 36V.

  5. Q: What is the common-mode rejection ratio (CMRR) of the INA2128UA?
    A: The CMRR of the INA2128UA is typically 100dB or more, allowing it to reject common-mode noise effectively.

  6. Q: Is the INA2128UA suitable for low-power applications?
    A: Yes, the INA2128UA has a low quiescent current of typically 750µA, making it suitable for low-power designs.

  7. Q: Can the INA2128UA handle high-frequency signals?
    A: Yes, the INA2128UA has a wide bandwidth of typically 1MHz, enabling it to amplify high-frequency signals accurately.

  8. Q: Does the INA2128UA have built-in protection features?
    A: Yes, the INA2128UA includes built-in overvoltage and reverse polarity protection, enhancing its robustness in various applications.

  9. Q: Can the INA2128UA be used in temperature-sensitive environments?
    A: Yes, the INA2128UA has a wide operating temperature range of typically -40°C to +125°C, making it suitable for harsh conditions.

  10. Q: What are some typical applications of the INA2128UA?
    A: The INA2128UA is commonly used in precision measurement systems, strain gauge amplifiers, medical equipment, and industrial control systems.

Please note that these answers are general and may vary depending on specific datasheet specifications and application requirements.