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1 LM35

The document discusses the LM35 temperature sensor. It notes that the LM35 is a linear temperature sensor that outputs 10 millivolts for each degree Celsius, making it easy to calculate the temperature based on the sensor output voltage. The LM35 has a temperature range of -55 to 150 degrees Celsius, and it operates by connecting Vcc to 5V, ground to ground, and the output to an analog to digital converter to read the temperature.

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Mikroc Thupati Srinivs
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80 views2 pages

1 LM35

The document discusses the LM35 temperature sensor. It notes that the LM35 is a linear temperature sensor that outputs 10 millivolts for each degree Celsius, making it easy to calculate the temperature based on the sensor output voltage. The LM35 has a temperature range of -55 to 150 degrees Celsius, and it operates by connecting Vcc to 5V, ground to ground, and the output to an analog to digital converter to read the temperature.

Uploaded by

Mikroc Thupati Srinivs
Copyright
© © All Rights Reserved
We take content rights seriously. If you suspect this is your content, claim it here.
Available Formats
Download as DOC, PDF, TXT or read online on Scribd
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LM35 MikroC

LM35

LM35 Temperature sensor:

 Transducers convert physical data such as temp, light intensity, speed etc
to electrical signal.

 Depending on the transducer, the output produced in the form of voltage,


current, resistance or capacitance.

 For example: Temperature is converted in to electrical signals using a


transducer called Thermister. A thermister responds to the temperature
change by changing resistance, but its response is not linear.

 That’s why we are using linear temperature sensors like LM34 or LM35
series.

 The LM35 series are precision integrated-circuit temperature sensors,


whose output voltage is linearly proportional to the Celsius (Centigrade)
temperature.

 Its output is 10MilliVolts per degree centigrade.

 So if the output is 310 mV then temperature is 31 degree C.

 It has a range of −55 to +150°C temperature range.

 LM35 is a popular and low cost temperature sensor.


 It has three pins as follows.
LM35 MikroC
LM35

 To use the sensor simply connect the Vcc to 5V, GND to Gnd and the Out
to one of the ADC (analog to digital converter channel). The output linearly
varies with temperature.

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