Texas Instruments
Obrázek může být reprezentace.
Viz Specifikace pro podrobnosti o produktu.
INA117KU/2K5G4
Zobrazit detail DataSheets

INA117KU/2K5G4

Product Overview

  • Category: Integrated Circuit (IC)
  • Use: Instrumentation Amplifier
  • Characteristics: High precision, low noise, high common-mode rejection ratio (CMRR)
  • Package: SOIC (Small Outline Integrated Circuit)
  • Essence: Amplification and filtering of small differential signals
  • Packaging/Quantity: Tape and Reel, 2500 units per reel

Specifications

  • Supply Voltage Range: ±2.25V to ±18V
  • Input Offset Voltage: 50µV (maximum)
  • Input Bias Current: 1nA (maximum)
  • Gain Bandwidth Product: 200kHz (typical)
  • Common-Mode Rejection Ratio (CMRR): 100dB (minimum)
  • Operating Temperature Range: -40°C to +85°C

Pin Configuration

The INA117KU/2K5G4 has a total of 8 pins:

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

Functional Features

  • High accuracy amplification of small differential signals
  • Excellent rejection of common-mode noise
  • Low input offset voltage and bias current for precise measurements
  • Wide supply voltage range for versatile applications
  • Internal protection against overvoltage and reverse polarity

Advantages and Disadvantages

Advantages: - High precision amplification - Low noise performance - Wide operating temperature range - Robust internal protection

Disadvantages: - Limited gain bandwidth product compared to some alternatives - Higher cost compared to basic operational amplifiers

Working Principles

The INA117KU/2K5G4 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 form a differential amplifier with high gain and high common-mode rejection ratio (CMRR). The gain can be set externally using the RG pin, allowing flexibility in signal amplification.

Detailed Application Field Plans

The INA117KU/2K5G4 is commonly used in various applications, including:

  1. Medical Equipment: ECG (Electrocardiogram) amplification, patient monitoring systems
  2. Industrial Automation: Sensor signal conditioning, process control
  3. Test and Measurement: Data acquisition systems, strain gauge amplification
  4. Communication Systems: Line receiver, audio signal amplification

Detailed and Complete Alternative Models

  1. AD620: Instrumentation Amplifier with higher gain bandwidth product
  2. INA128: Precision Instrumentation Amplifier with lower input offset voltage
  3. AD8221: Low power Instrumentation Amplifier with rail-to-rail inputs

These alternative models offer different trade-offs in terms of performance, cost, and specific application requirements.

Word count: 314 words

Seznam 10 běžných otázek a odpovědí souvisejících s aplikací INA117KU/2K5G4 v technických řešeních

  1. What is the typical application of INA117KU/2K5G4?
    - The INA117KU/2K5G4 is commonly used as a precision instrumentation amplifier in various technical solutions.

  2. What is the supply voltage range for INA117KU/2K5G4?
    - The supply voltage range for INA117KU/2K5G4 is typically ±2.25V to ±18V.

  3. Can INA117KU/2K5G4 be used in low-power applications?
    - Yes, INA117KU/2K5G4 can be used in low-power applications due to its low quiescent current.

  4. What is the input common-mode voltage range of INA117KU/2K5G4?
    - The input common-mode voltage range of INA117KU/2K5G4 is typically from V− to V+ - 1.2V.

  5. Is INA117KU/2K5G4 suitable for bridge sensor measurements?
    - Yes, INA117KU/2K5G4 is suitable for bridge sensor measurements due to its high accuracy and low offset voltage.

  6. What is the gain accuracy of INA117KU/2K5G4?
    - The gain accuracy of INA117KU/2K5G4 is typically 0.01%.

  7. Can INA117KU/2K5G4 operate in harsh environments?
    - Yes, INA117KU/2K5G4 is designed to operate in harsh environments with its wide temperature range and robust construction.

  8. What is the bandwidth of INA117KU/2K5G4?
    - The bandwidth of INA117KU/2K5G4 is typically 200kHz.

  9. Does INA117KU/2K5G4 have built-in protection features?
    - Yes, INA117KU/2K5G4 has built-in overvoltage and reverse-voltage protection.

  10. Can INA117KU/2K5G4 be used in medical instrumentation applications?
    - Yes, INA117KU/2K5G4 is suitable for medical instrumentation applications due to its high precision and reliability.