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LM35CH
Product Overview
LM35CH belongs to the category of temperature sensors. It is commonly used to measure temperature in various electronic devices and systems. The LM35CH sensor has characteristics such as high accuracy, linear output, low self-heating, and low impedance. It is available in a TO-46 metal can package and is an essential component for temperature measurement applications. The LM35CH is typically sold in packs of 1 or more.
Specifications
- Temperature range: -55°C to 150°C
- Output voltage: 10mV/°C
- Operating voltage: 4V to 30V
- Low self-heating: 0.08°C in still air
- Accuracy: ±0.5°C at 25°C
Detailed Pin Configuration
The LM35CH has three pins: 1. VCC (Pin 1) - Connected to the positive supply voltage 2. VOUT (Pin 2) - Provides the analog output voltage proportional to the temperature 3. GND (Pin 3) - Connected to the ground
Functional Features
- Linear output: The output voltage changes linearly with temperature, making it easy to interpret the readings.
- High accuracy: The LM35CH provides precise temperature measurements, suitable for critical applications.
- Low self-heating: The sensor's low self-heating minimizes temperature errors caused by internal heating.
Advantages and Disadvantages
Advantages
- High accuracy
- Linear output
- Low self-heating
- Wide temperature range
Disadvantages
- Limited temperature range compared to some other sensors
- Requires external calibration for utmost precision
Working Principles
The LM35CH operates based on the principle of the relationship between temperature and voltage. As the temperature changes, the LM35CH produces a corresponding change in its output voltage, providing an accurate representation of the temperature.
Detailed Application Field Plans
The LM35CH is widely used in various applications, including: - HVAC systems - Automotive climate control - Industrial temperature monitoring - Medical equipment - Weather stations
Detailed and Complete Alternative Models
Some alternative models to LM35CH include: - TMP36: Offers low voltage operation and calibrated directly in Celsius - DS18B20: Digital temperature sensor with programmable resolution - MCP9808: High accuracy I2C temperature sensor with user-programmable temperature limits
In conclusion, the LM35CH is a reliable temperature sensor with high accuracy and linear output, making it suitable for a wide range of temperature measurement applications.
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What is the LM35CH temperature sensor?
- The LM35CH is a precision integrated-circuit temperature sensor that provides an output voltage linearly proportional to the Celsius temperature.
What is the operating temperature range of the LM35CH?
- The LM35CH operates over a temperature range of -55°C to 150°C.
How accurate is the LM35CH temperature sensor?
- The LM35CH has a typical accuracy of ±0.5°C at room temperature and ±3/4°C over a full -55°C to 150°C temperature range.
What is the supply voltage requirement for the LM35CH?
- The LM35CH operates from a single power supply of 4V to 30V.
Can the LM35CH be used in outdoor applications?
- Yes, the LM35CH can be used in outdoor applications as it can measure temperatures as low as -55°C.
Is the LM35CH suitable for battery-powered applications?
- Yes, the LM35CH is suitable for battery-powered applications due to its low power consumption of 60µA.
How can the output voltage of the LM35CH be converted to temperature?
- The output voltage of the LM35CH can be converted to temperature by multiplying the output voltage by 100 (for Celsius) or 180 (for Fahrenheit).
What are some common applications of the LM35CH?
- Common applications of the LM35CH include temperature monitoring in HVAC systems, automotive applications, industrial control systems, and environmental monitoring.
Does the LM35CH require calibration?
- The LM35CH does not require external calibration as it is calibrated directly in Celsius.
Can the LM35CH be interfaced with microcontrollers?
- Yes, the LM35CH can be easily interfaced with microcontrollers as it provides a linear output voltage that can be directly measured by analog-to-digital converters (ADCs).