Using LM35 to measure temperature -40 to 0 degrees celcuis

[owais131]

Dear Friends,

I need help in this.. I want to make LM35 to work between my required range of -40 degrees to 0 degrees Celsius. I have another device which takes Analog input from 0 to 15volts. i want the LM35 IC to give me the voltage of 0 to 15volts with required temperature range (-40 to 0). Is is possible ?

Thanks in Advance...

 

[RCinFLA]

Use an op amp to amplify the LM35 to get the voltage range you desire.

 

[MRCecil]

Yes, it is possible. Look at National's data sheet. It has extensive applications shown for the device, so it would just be a matter calibration for the range required. You can view the data sheet here:

https://www.electro-tech-online.com/custompdfs/2010/03/LM35.pdf