Texas Instruments
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LM34CH/NOPB
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LM34CH/NOPB

Product Overview

Category: Integrated Circuit
Use: Temperature Sensor
Characteristics: Analog Output, Precision Measurement
Package: TO-92
Essence: Accurate temperature sensing
Packaging/Quantity: Bulk, 2000 units per reel

Specifications

  • Operating Voltage: 4V to 30V
  • Temperature Range: -50°C to 150°C
  • Output Voltage: 10mV/°F
  • Accuracy: ±0.5°F at +77°F

Detailed Pin Configuration

  1. V+ (Pin 1) - Positive Supply Voltage
  2. Vout (Pin 2) - Analog Output
  3. GND (Pin 3) - Ground

Functional Features

  • Directly calibrated in °F
  • Low self-heating
  • Linear output
  • Operates from 4V to 30V

Advantages and Disadvantages

Advantages: - Wide operating voltage range - High accuracy - Simple interfacing

Disadvantages: - Limited temperature range - Analog output requires additional processing

Working Principles

The LM34CH/NOPB operates on the principle of a precision analog-output temperature sensor. It produces an output voltage that is linearly proportional to the Fahrenheit temperature. The device does not require any external calibration or trimming to provide typical accuracies of ±1/2°F at room temperature and ±3/4°F over a full -50°F to +300°F temperature range.

Detailed Application Field Plans

The LM34CH/NOPB is suitable for various temperature measurement applications, including: - HVAC systems - Industrial process control - Environmental monitoring - Automotive systems - Medical equipment

Detailed and Complete Alternative Models

  1. LM35 - Similar functionality with Celsius output
  2. TMP36 - Low voltage operation with similar accuracy

In conclusion, the LM34CH/NOPB is a versatile temperature sensor offering high accuracy and a wide operating voltage range. Its simple interfacing and precise measurements make it suitable for a variety of applications across different industries.

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Énumérez 10 questions et réponses courantes liées à l'application de LM34CH/NOPB dans les solutions techniques

  1. What is the LM34CH/NOPB?

    • The LM34CH/NOPB is a precision Fahrenheit temperature sensor that provides an analog voltage output proportional to the temperature.

  2. What is the operating temperature range of the LM34CH/NOPB?

    • The LM34CH/NOPB operates over a temperature range of -50°F to 300°F (-45°C to 150°C).

  3. How accurate is the LM34CH/NOPB?

    • The LM34CH/NOPB has a typical accuracy of ±0.5°F at room temperature.

  4. What are the typical applications of the LM34CH/NOPB?

    • The LM34CH/NOPB is commonly used in HVAC systems, industrial control systems, and temperature monitoring applications.

  5. How do I interface with the LM34CH/NOPB?

    • The LM34CH/NOPB outputs an analog voltage that can be directly interfaced with microcontrollers, ADCs, or other analog circuitry.

  6. Does the LM34CH/NOPB require calibration?

    • The LM34CH/NOPB does not require external calibration as it is factory calibrated.

  7. Can the LM34CH/NOPB be powered from a single power supply?

    • Yes, the LM34CH/NOPB can be powered from a single power supply ranging from 4V to 30V.

  8. Is the LM34CH/NOPB suitable for outdoor applications?

    • The LM34CH/NOPB can be used in outdoor applications, but proper protection from moisture and environmental factors should be considered.

  9. What is the output voltage range of the LM34CH/NOPB?

    • The output voltage range of the LM34CH/NOPB is 10mV/°F, so at 70°F, the output voltage would be 700mV.

  10. Can the LM34CH/NOPB be used for temperature control applications?

    • While the LM34CH/NOPB itself does not provide control functionality, it can be integrated into temperature control systems to provide temperature feedback.