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INA155E/2K5
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INA155E/2K5

Product Overview

  • Category: Integrated Circuit (IC)
  • Use: Amplifier
  • Characteristics: High precision, low noise, wide bandwidth
  • Package: SOT23-5
  • 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: 1MHz (typical)
  • Input Common Mode Range: ±12V
  • Operating Temperature Range: -40°C to +125°C

Detailed Pin Configuration

The INA155E/2K5 has a total of 5 pins:

  1. Pin 1: V-
  2. Pin 2: REF
  3. Pin 3: V+
  4. Pin 4: OUT
  5. Pin 5: NC (No Connection)

Functional Features

  • High common-mode rejection ratio (CMRR)
  • Low input offset voltage and bias current
  • Wide operating voltage range
  • Rail-to-rail output swing capability
  • Low distortion and noise

Advantages and Disadvantages

Advantages

  • High precision amplification
  • Suitable for low-level signal amplification
  • Wide temperature range operation
  • Small package size
  • Low power consumption

Disadvantages

  • Limited output current capability
  • Requires external components for proper operation
  • Relatively high cost compared to basic operational amplifiers

Working Principles

The INA155E/2K5 is an instrumentation amplifier designed to amplify small differential signals while rejecting common-mode noise. It consists of three operational amplifiers configured in a differential amplifier topology. The input signals are amplified and filtered to provide a high gain, low noise output signal.

Detailed Application Field Plans

The INA155E/2K5 is commonly used in various applications including:

  1. Medical equipment: ECG amplification, patient monitoring systems
  2. Industrial automation: Sensor signal conditioning, process control
  3. Test and measurement: Data acquisition systems, strain gauge amplification
  4. Audio equipment: Microphone preamplifiers, audio signal processing

Detailed and Complete Alternative Models

  1. INA114AP - DIP-8 package, lower cost alternative
  2. AD8221ARZ - SOIC-8 package, higher precision alternative
  3. MCP6N11-010E/SN - SOT23-5 package, lower power consumption alternative

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

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Liste 10 almindelige spørgsmål og svar relateret til anvendelsen af INA155E/2K5 i tekniske løsninger

  1. Question: What is the typical application of INA155E/2K5 in technical solutions?
    Answer: The INA155E/2K5 is commonly used for precision current sensing and monitoring in various technical solutions.

  2. Question: How does INA155E/2K5 help in achieving precision current sensing?
    Answer: INA155E/2K5 provides high accuracy and low offset voltage, making it suitable for precise current measurements.

  3. Question: Can INA155E/2K5 be used in battery management systems?
    Answer: Yes, INA155E/2K5 is often employed in battery management systems for accurate current monitoring.

  4. Question: What are the key features of INA155E/2K5 that make it suitable for technical solutions?
    Answer: INA155E/2K5 offers low offset voltage, wide input common-mode range, and high common-mode rejection ratio, making it ideal for various technical applications.

  5. Question: Is INA155E/2K5 suitable for motor control applications?
    Answer: Yes, INA155E/2K5 can be utilized in motor control applications for precise current measurement and feedback.

  6. Question: How does INA155E/2K5 contribute to power supply monitoring?
    Answer: INA155E/2K5 aids in accurate current sensing and monitoring in power supply systems, ensuring efficient operation.

  7. Question: Can INA155E/2K5 be used in industrial automation equipment?
    Answer: Yes, INA155E/2K5 is commonly integrated into industrial automation equipment for reliable current measurement.

  8. Question: What are the typical voltage and current ranges supported by INA155E/2K5?
    Answer: INA155E/2K5 supports a wide input voltage range and can accurately measure currents ranging from microamps to milliamps.

  9. Question: Does INA155E/2K5 require external calibration for accurate current sensing?
    Answer: No, INA155E/2K5 features internal calibration and compensation, ensuring accurate current measurements without the need for external calibration.

  10. Question: Are there any specific application notes or reference designs available for using INA155E/2K5 in technical solutions?
    Answer: Yes, Texas Instruments provides comprehensive application notes and reference designs for integrating INA155E/2K5 into various technical solutions.