Texas Instruments
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INA125UG4
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INA125UG4

Product Overview

  • Category: Integrated Circuit (IC)
  • Use: Amplifier
  • Characteristics: High precision, low noise, low power consumption
  • 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: ±50nA (maximum)
  • Gain Bandwidth Product: 200kHz (typical)
  • Input Common Mode Voltage Range: -Vs + 1.8V to +Vs - 1.8V
  • Operating Temperature Range: -40°C to +85°C

Pin Configuration

The INA125UG4 has the following pin configuration:

  1. V+
  2. RG
  3. IN-
  4. IN+
  5. REF
  6. OUT
  7. V-
  8. NC

Functional Features

  • High common-mode rejection ratio (CMRR)
  • Low input offset voltage and bias current
  • Wide input common-mode voltage range
  • Adjustable gain through external resistor (RG)
  • Low quiescent current

Advantages and Disadvantages

Advantages: - High precision amplification - Low noise output - Wide operating temperature range - Flexible gain adjustment

Disadvantages: - Limited supply voltage range - Requires external resistor for gain adjustment

Working Principles

The INA125UG4 is an instrumentation amplifier designed to amplify small differential signals while rejecting common-mode noise. It consists of three operational amplifiers and precision resistors that provide high gain and accuracy. The input signal is amplified by a programmable gain set by the external resistor RG. The amplified output is then available at the OUT pin.

Detailed Application Field Plans

The INA125UG4 finds applications in various fields, including:

  1. Medical instrumentation
  2. Industrial process control
  3. Weigh scales and load cells
  4. Strain gauge amplification
  5. Temperature measurement systems
  6. Data acquisition systems

Detailed and Complete Alternative Models

Some alternative models to the INA125UG4 include:

  1. AD620 - Instrumentation Amplifier by Analog Devices
  2. MCP6N11 - Zero-Drift Instrumentation Amplifier by Microchip Technology
  3. LT1167 - Precision Instrumentation Amplifier by Linear Technology

These alternative models offer similar functionality and can be considered based on specific requirements and preferences.

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قم بإدراج 10 أسئلة وإجابات شائعة تتعلق بتطبيق INA125UG4 في الحلول التقنية

Sure! Here are 10 common questions and answers related to the application of INA125UG4 in technical solutions:

  1. Q: What is the INA125UG4? A: The INA125UG4 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 the INA125UG4? A: The input voltage range of the INA125UG4 is typically ±Vs/2, where Vs is the supply voltage.

  3. Q: Can the INA125UG4 be used in single-supply applications? A: Yes, the INA125UG4 can be used in both single-supply and dual-supply applications.

  4. Q: What is the gain range of the INA125UG4? A: The gain range of the INA125UG4 is adjustable from 1 to 1000 using external resistors.

  5. Q: What is the maximum output voltage swing of the INA125UG4? A: The maximum output voltage swing of the INA125UG4 is typically ±Vs - 1.2V.

  6. Q: Is the INA125UG4 suitable for low-power applications? A: Yes, the INA125UG4 has a low quiescent current consumption, making it suitable for low-power applications.

  7. Q: Can the INA125UG4 handle differential or single-ended inputs? A: The INA125UG4 can handle both differential and single-ended inputs, providing flexibility in various measurement scenarios.

  8. Q: Does the INA125UG4 have built-in protection features? A: Yes, the INA125UG4 includes built-in protection against overvoltage and reverse polarity conditions.

  9. Q: What is the temperature range of operation for the INA125UG4? A: The INA125UG4 is designed to operate within a temperature range of -40°C to +125°C.

  10. Q: What are some typical applications for the INA125UG4? A: The INA125UG4 is commonly used in applications such as strain gauge amplification, thermocouple amplification, and medical instrumentation.

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