Connect with us

identify temperature IC

Discussion in 'General Electronics Discussion' started by jfk, Apr 25, 2016.

  1. jfk

    jfk

    13
    1
    Mar 28, 2016
    I've seen an temperature IC that drops the voltage out of a pin as the chip warms up.
    Is anyone familiar with what it might be?
     
  2. Arouse1973

    Arouse1973 Adam

    5,164
    1,078
    Dec 18, 2013
  3. jfk

    jfk

    13
    1
    Mar 28, 2016
    Doesn't the LM35 raise output voltage as temp rises?
     
  4. Arouse1973

    Arouse1973 Adam

    5,164
    1,078
    Dec 18, 2013
    You could use an inverting buffer to invert the signal. Don't know of an IC that goes the other way, Maxim might do one.
    Adam
     
  5. AnalogKid

    AnalogKid

    2,299
    647
    Jun 10, 2015
    There are thermometer (temperature transducer or sensor) IC's and there are thermostat ICs. All of the sensor's I've seen have a positive output coefficient - voltage goes up when temperature goes up. Thermostat ICs do not make a linear output. The output is a digital logic low or high, and it changes state when the temperature crosses a threshold. The direction of the change varies with the chip, or some chips produce both.

    Dozens on the market. Part number?????????????????????????????????????

    ak
     
  6. jfk

    jfk

    13
    1
    Mar 28, 2016
    Agreed on all that. Thanks. The circuit I saw was unusual, so just trying to figure out what they did.
     
Ask a Question
Want to reply to this thread or ask your own question?
You'll need to choose a username for the site, which only take a couple of moments (here). After that, you can post your question and our members will help you out.
Electronics Point Logo
Continue to site
Quote of the day

-