Introduction
LM35 Temperature Sensor
- LM35 is a temperature measuring device having an analog output voltage proportional to the temperature.
- It provides output voltage in Centigrade (Celsius). It does not require any external calibration circuitry.
- The sensitivity of LM35 is 10 mV/degree Celsius. As temperature increases, output voltage also increases.
E.g. 250 mV means 25°C.
- It is a 3-terminal sensor used to measure surrounding temperature ranging from -55 °C to 150 °C.
- LM35 gives temperature output which is more precise than thermistor output.
Pin Description
VCC: Supply Voltage (4V – 30V)
Out: It gives analog output voltage which is proportional to the temperature (in degree Celsius).
GND: Ground
Application Setup
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