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INA2126UA
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INA2126UA

Product Overview

  • Category: Integrated Circuit (IC)
  • Use: Amplifier
  • Characteristics: High precision, low noise, wide bandwidth
  • Package: SOIC (Small Outline Integrated Circuit)
  • Essence: Instrumentation amplifier
  • Packaging/Quantity: Tape and Reel, 2500 units per reel

Specifications

  • Supply Voltage: ±2.25V to ±18V
  • Input Offset Voltage: ±150µV (maximum)
  • Input Bias Current: ±100nA (maximum)
  • Gain Bandwidth Product: 1MHz (typical)
  • Common Mode Rejection Ratio: 100dB (typical)
  • Operating Temperature Range: -40°C to +125°C

Detailed Pin Configuration

The INA2126UA has a total of 8 pins:

  1. V+ (Positive Supply Voltage)
  2. V- (Negative Supply Voltage)
  3. REF (Reference Voltage)
  4. IN- (Inverting Input)
  5. IN+ (Non-Inverting Input)
  6. OUT (Output)
  7. RG (Gain Setting Resistor)
  8. NC (No Connection)

Functional Features

  • High accuracy amplification of differential signals
  • Low noise performance for precise measurements
  • Wide bandwidth allows for signal amplification in various applications
  • Adjustable gain through external resistor (RG)
  • High common mode rejection ratio for rejecting common noise

Advantages

  • High precision amplification for accurate signal processing
  • Low noise ensures minimal interference with the desired signal
  • Wide bandwidth enables amplification of a broad range of frequencies
  • Flexible gain adjustment for different application requirements
  • Excellent common mode rejection ratio reduces common noise effects

Disadvantages

  • Requires external gain setting resistor for adjusting amplification
  • Limited supply voltage range compared to some other amplifiers
  • Higher cost compared to basic operational amplifiers

Working Principles

The INA2126UA is an instrumentation amplifier designed to amplify small differential signals with high accuracy. It consists of three operational amplifiers and precision resistors that provide a high gain, low noise, and wide bandwidth performance. The inverting and non-inverting inputs allow for differential signal input, while the output provides the amplified signal. The gain can be adjusted by connecting an external resistor to the RG pin.

Detailed Application Field Plans

The INA2126UA is commonly used in various applications, including:

  1. Medical equipment: Amplification of bioelectric signals for monitoring and diagnosis.
  2. Industrial automation: Signal conditioning and amplification in control systems.
  3. Test and measurement: Precise signal amplification for accurate measurements.
  4. Audio equipment: Amplification of audio signals for improved sound quality.
  5. Sensor interfaces: Amplification of sensor outputs for further processing.

Detailed and Complete Alternative Models

  1. AD620: Instrumentation amplifier with similar specifications and package.
  2. INA128: Precision instrumentation amplifier with higher common mode rejection ratio.
  3. AD8221: Low power instrumentation amplifier with adjustable gain.

(Note: This list is not exhaustive and there are several alternative models available in the market.)

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技術ソリューションにおける INA2126UA 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 INA2126UA in technical solutions:

  1. Q: What is INA2126UA?
    A: INA2126UA is a precision instrumentation amplifier designed for accurate amplification of low-level signals in various applications.

  2. Q: What is the input voltage range of INA2126UA?
    A: The input voltage range of INA2126UA is typically ±200mV, but it can be extended with external resistors.

  3. Q: What is the gain accuracy of INA2126UA?
    A: INA2126UA offers high gain accuracy with a typical gain error of only 0.01%.

  4. Q: Can INA2126UA operate from a single power supply?
    A: Yes, INA2126UA can operate from a single power supply ranging from 2.7V to 36V.

  5. Q: What is the common-mode rejection ratio (CMRR) of INA2126UA?
    A: INA2126UA has a high CMRR of typically 100dB, which helps reject common-mode noise.

  6. Q: Is INA2126UA suitable for low-power applications?
    A: Yes, INA2126UA has a low quiescent current of typically 500µA, making it suitable for low-power designs.

  7. Q: Can INA2126UA handle high-frequency signals?
    A: Yes, INA2126UA has a wide bandwidth of typically 1MHz, allowing it to amplify high-frequency signals accurately.

  8. Q: Does INA2126UA have built-in protection features?
    A: Yes, INA2126UA includes built-in overvoltage and reverse polarity protection, ensuring robust operation.

  9. Q: Can INA2126UA be used in temperature-sensitive applications?
    A: Yes, INA2126UA has a wide operating temperature range of -40°C to +125°C, making it suitable for temperature-sensitive applications.

  10. Q: What are some typical applications of INA2126UA?
    A: INA2126UA is commonly used in precision measurement systems, strain gauge amplifiers, medical instrumentation, and industrial control systems.

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