Texas Instruments
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INA157UA/2K5
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INA157UA/2K5

Product Overview

  • Category: Integrated Circuit (IC)
  • Use: Amplifier
  • Characteristics: High precision, low noise, wide bandwidth
  • Package: SOIC-8
  • Essence: Instrumentation amplifier
  • Packaging/Quantity: Tape and Reel, 2500 units per reel

Specifications

  • Supply Voltage Range: ±2.25V to ±18V
  • Input Offset Voltage: ±150µV (maximum)
  • Input Bias Current: ±50nA (maximum)
  • Gain Bandwidth Product: 1MHz (typical)
  • Common Mode Rejection Ratio: 86dB (typical)
  • Operating Temperature Range: -40°C to +85°C

Detailed Pin Configuration

The INA157UA/2K5 has a total of 8 pins:

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

Functional Features

  • High common mode rejection ratio for accurate amplification of differential signals.
  • Low input offset voltage and bias current for precise signal amplification.
  • Wide supply voltage range allows for flexibility in various applications.
  • Rail-to-rail output swing enables maximum dynamic range.

Advantages and Disadvantages

Advantages: - High precision amplification of differential signals. - Low noise performance. - Wide bandwidth for versatile applications. - Small package size for space-constrained designs.

Disadvantages: - Limited output current capability. - Requires external power supply.

Working Principles

The INA157UA/2K5 is an instrumentation amplifier designed to amplify small differential signals with high accuracy. It consists of three operational amplifiers configured in a differential amplifier topology. The input stage provides high common mode rejection ratio, while the output stage ensures rail-to-rail output swing. The amplifier operates by amplifying the voltage difference between the non-inverting and inverting inputs, rejecting common mode signals.

Detailed Application Field Plans

The INA157UA/2K5 is commonly used in various applications, including:

  1. Sensor signal conditioning
  2. Medical instrumentation
  3. Audio amplification
  4. Data acquisition systems
  5. Industrial control systems

Detailed and Complete Alternative Models

  • INA116PA: Precision Instrumentation Amplifier, DIP-8 package
  • AD8221ARZ: Low Drift, Low Power Instrumentation Amplifier, SOIC-8 package
  • MCP6N11-010E/SN: Zero-Drift Instrumentation Amplifier, SOT-23 package
  • LT1167CN8: Precision Instrumentation Amplifier, PDIP-8 package
  • MAX4209ESA+: Low Noise, Low Distortion Instrumentation Amplifier, SOIC-8 package

These alternative models offer similar functionality and can be considered as substitutes for the INA157UA/2K5 in different applications.

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Seznam 10 běžných otázek a odpovědí souvisejících s aplikací INA157UA/2K5 v technických řešeních

  1. What is the typical application of INA157UA/2K5?
    - The INA157UA/2K5 is commonly used as a precision instrumentation amplifier in various technical solutions.

  2. How does INA157UA/2K5 help in signal conditioning?
    - INA157UA/2K5 provides high accuracy amplification and filtering of small signals, making it ideal for signal conditioning applications.

  3. Can INA157UA/2K5 be used in data acquisition systems?
    - Yes, INA157UA/2K5 is often integrated into data acquisition systems to accurately amplify and process sensor signals.

  4. What are the key features of INA157UA/2K5 that make it suitable for industrial applications?
    - INA157UA/2K5 offers low offset voltage, low noise, and high common-mode rejection ratio, making it well-suited for industrial measurement and control systems.

  5. Is INA157UA/2K5 suitable for medical instrumentation applications?
    - Yes, the precision and stability of INA157UA/2K5 make it a good choice for medical instrumentation requiring accurate signal amplification.

  6. Can INA157UA/2K5 operate in harsh environments?
    - INA157UA/2K5 has a wide operating temperature range and can withstand harsh environmental conditions, making it suitable for rugged applications.

  7. How does INA157UA/2K5 contribute to power monitoring systems?
    - INA157UA/2K5 can be used to accurately measure and amplify small voltage signals in power monitoring systems, ensuring precise power measurements.

  8. What are the typical input and output voltage ranges for INA157UA/2K5?
    - The input voltage range is typically ±10V, and the output voltage swing is close to the supply rails.

  9. Can INA157UA/2K5 be used in automotive electronics?
    - Yes, the high precision and reliability of INA157UA/2K5 make it suitable for automotive electronics, such as engine control and sensor interfaces.

  10. Are there any specific layout considerations when using INA157UA/2K5 in PCB designs?
    - Proper grounding and layout techniques should be followed to minimize noise and ensure stable operation of INA157UA/2K5 in PCB designs.