LM35DZ DATASHEET PDF

LM35DZ/NOPB Texas Instruments Board Mount Temperature Sensors PREC CENTIGRADE TEMP SENSOR datasheet, inventory, & pricing. LM35DZ Datasheet, LM35DZ National Semiconductor Precision Celcius Temperature Sensor Datasheet, buy LM35DZ. q Low self heating (°C typical) q Output impedance Ω at 1mA q Standard T package. Pin connections. Package details. Data Sheet.

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By using our site, you acknowledge that you have read and understand our Cookie PolicyPrivacy Policyand our Terms of Service. I have an LM35DZ which is temperature sensor, properly connected and reading strange values After several attempts I tried to measure voltage with multimeter on 2nd pin Vout and it was 4.

Using this code I also got 4. By mistake I ordered 5 pieces instead of one so I tried with all of them and they all give me same result both on Arduino and voltage measured. Sorry on my Bad English, Datasjeet try to explain even more what I’ve done.

As Ricardo told I’ve tried lm335dz remove Arduino out of picture and still got 4. Will buy one in local electronics shop and try with it. In spite of the low quality of your second picture, with a bit of hard work and maybe some faithI can tell that your connections are correct:.

LM35 Temperature Sensor

The LM35DZ datasheet output follows the formula below:. So, right there, there seems to be a problem with your setup. There’s got to be something in your hardware, but I don’t know what it is.

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It’s a long shot because that may already be the lm5dz, and also because the analogRead call probably does that for you. Another thing to try: If so, maybe that means the batch of LM35 you got is miscalibrated. If that’s the case, you may be able to compensate for that and calibrate them yourself, by adjusting the temperature formula in your code.

LM35DZ Datasheet(PDF) – National Semiconductor (TI)

There’s some information on how to do it in the related question, How to calibrate a temperature sensor. That’s cheating, admittedly, but who cares as long as it works? We’re Engineers, not Scientists: Finally, I would suggest you to isolate the variables: If you get the same 4. If you get something around mV, then the problem is related to your Arduino board. Bought LM35DZ in local electronics shop and everything is working as it should.

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Home Questions Tags Users Unanswered. Now I’m confused what is going on and why all of them return the same value?

LM35 Temperature Sensor

Post an actual schematic. Dstasheet pictures tell us nothing. Here’s a post of somebody with the same problem as you. As a side note, this: You don’t want to be doing unncessary division at run-time.

Of course this application is not a time-sensitive project, but increased efficiency should always be realized where possible. Do you have a scope you can look at it with to be sure it’s not noisy?

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I datasheer have an answer for your question, but I’ll write down what I could tell from your setup. In spite of the low quality of your second picture, with a bit of hard work and maybe some faithI can tell that your connections are correct: The LM35DZ datasheet output follows the formula below: D Finally, I would suggest you to isolate the variables: Ricardo 4, 14 37 AVR microcontroller pins default to input, as you have said.

I also second your recommendation – I remove the Arduino and measure the output as a function of varying lengths of time you heat the device with your hands.

I did exactly that my English is bad and I know it! I’ll buy tomorrow one LM35DZ in local electronics shop and try again. Maybe I really got miscalibrated ones. Chris Thanks for the edit!

Texas Instruments/TI LM35DZ – PDF Datasheet – Temperature Sensors In Stock |

Its funny, they are same, all markings and everything. Thanks on your help guys!

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