LM355 DATASHEET PDF

The LM series are precision easily-calibrated integrat- ed circuit temperature sensors Operating as a 2-terminal zener the LM has a breakdown voltage. lm are available at Mouser Electronics. Mouser offers inventory, pricing, & datasheets for lm Data sheet, LM manual, LM pdf, LM, datenblatt, Electronics LM, alldatasheet, free, datasheet, Datasheets, data sheet, datas sheets, databook. Author: Shaktijar Akik Country: Slovenia Language: English (Spanish) Genre: Software Published (Last): 19 August 2014 Pages: 141 PDF File Size: 16.96 Mb ePub File Size: 1.57 Mb ISBN: 207-2-69475-480-2 Downloads: 16366 Price: Free* [*Free Regsitration Required] Uploader: Arashilkis This output reading of The difference between an LM and LM34 and LM35 temperature sensors is the LM sensor gives out the temperature in degrees Kelvin, while the LM35 sensor gives out the temperature in degrees Celsius and the LM34 sensor gives out the temperature in degrees Fahrenheit.

LM35 Temperature Sensor

We can then easily convert this value into fahrehnheit and celsius by plugging in the appropriate conversion dtaasheet. So to get the degree value in fahrenheit, all that must be done is to take the voltage output and divide it by this give out the value degrees in fahrenheit. We attach this pin to analog pin A0 of the arduino board. In this project, we will demonstrate how to build temperature sensor circuit using a LM sensor. This translates into the circuit schematic: The output pin provides an analog voltage output that is linearly proportional to the fahrenheit temperature. The raw voltage over this value therefore represents the ratio of how much power the output pin is outputting against ml355 full range. All we must do is write this code and upload it to the arduino to convert this kelvin temperature into fahrenheit and celsius.

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Once we have this ratio, we then multiply it by to give the millivolt datashete. Pin 2 is the output pin. This is because there is millvolts in 5 volts. This datawheet so that we can hook our arduino to a computer and send it code that it can run to display to us the temperature. This is ideal because the arduino’s power pin gives out 5V of power. Now the computer is connected to the arduino. Temperature Sensor Circuit The temperature sensor circuit we will build is shown below: Below is the pinout of the LM IC: The type B side of the connector goes into the arduino and the type A side into the USB port of the computer. This will be the raw value divided by times Once we obtain this Lm3555 value, we datsheet convert into Fahrenheit with the following equation: You can adjust this value to meet your personal preference or program needs.

LM Datasheet pdf – Precision Temperature Sensor – National Semiconductor

We will integrate this with the arduino to measure the temperature. This allows us to calibrate the temperature sensor if we want a more precise temperature readout.

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The arduino will then read this measured value from the LM and translate into degrees kelvin, fahrenheit and celsius, which we will be able to read from the computer from the arduino serial monitor. Pin 2 gives an output of 1 millivolt per 0. So you circuit connections are: Vatasheet get the ratio of the raw value to the full span of and then multiply it by to get the millivolt value.

Pin 1 is the Adjustable Pin Adj. As a temperature sensor, the circuit will read the temperature of the surrounding environment and relay this temperature to us back in degrees Kelvin. We can now write code in the processing software to give instructions to the arduino.

National Semiconductor – datasheet pdf

Pin 3 is the ground pin and connects to the ground GND terminal of the arduino. All you have to do is take the output reading and divide it by 10 in order to get datashewt temperature output reading. All 3 are calibrated different to output the millivolt voltage reading in proportional to these different units of measurement.

The arduino, with suitable code, can then interpret this measured analog voltage and output to us the temperature in degrees Kelvin, Celsius, and Fahrenheit.