LM35 sensor

Discussion in 'The Projects Forum' started by abu zuhdi, Apr 1, 2008.

  1. abu zuhdi

    Thread Starter New Member

    Apr 1, 2008
    1
    0
    hello everybody
    i want some help about how to transport the output signal of the LM35
    to a microcontroller which is 10 to 13m away from the sensor what should i do, and i need a design for an amplifier to the signal
     
  2. beenthere

    Retired Moderator

    Apr 20, 2004
    15,815
    282
    How were you planning to make the connection? And what is the input impedance of the microcontroller's A to D?
     
  3. SgtWookie

    Expert

    Jul 17, 2007
    22,182
    1,728
    You should go to National's website and download their datasheet for the LM35.

    Check out the Applications section. One application deals with using an ADC IC near the LM35 to digitize the signal early, before noise gets on the analog output.

    I would not suggest trying to amplify the LM35 output, nor running it for long distances.
     
  4. mrmeval

    Distinguished Member

    Jun 30, 2006
    833
    2
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