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Looking for a fast temperature sensor

Neta Sherer
Intellectual 560 points

Hi,
We are looking for a temperature sensor with relatively short response time.

The temperature range is 0-80C degrees, while the accuracy should be around 1C

Do you have any recommendation from TI?
We didn't find any response time graphs, so if if you have such, please let us know.

Thx

  • 0
    TI__Guru* 91206 points

    Dear Neta - 

    The temperature response time graphs for oil bath, still and moving air conditions are found in each of the part specific datasheets, where appropriate.

    in this case, to make the best recommendation to you, we would need to know if you prefer:

    1. Analog or digital sensor (this means that either you have ADC to connect to (for analog sensors) or MCU/MPU (i.e. I2C or SPI or single wire, for digital sensors) 

    2. Voltage input available/intended for sensor power

    3. if you need any special features like an interrupt. 

    4. size or package constraints (i.e. do you have limited board space, do you prefer leaded parts (through hole or SMD) vs. BGA/WCSP

    5. Your definition of "fast".  

    Here is a link to 44 part numbers which are within your currently listed constraints (0-80, 1C acc)

    https://www.ti.com/sensors/temperature-sensors/products.html#p1192=0;90&p2033max=0.1;1

    from here you can choose from the other parameters which you have requirements on to narrow down to shorter list and make a choice or come back and ask specific questions about any of them that interest you. 

    ===========

    For the full list, here is a link to all 175 temperature sensors we offer: https://www.ti.com/sensors/temperature-sensors/products.html 

  • 0 in reply to Josh Wyatt
    Intellectual 560 points

    Hi Josh,

    Thanks for the comprehensive feedback.

    Please note that we are still in design stages so we are open to use any voltage, as a result I would try to answer some points:

    1. Analog or digital sensor - We prefer digital and an existing of EVM may be an advantage.

    2. Voltage input - We will address any requirement.

    3. special features - No need special features.

    4. size or package constraints - no constrains on that topic.

    5. Your definition of "fast" -> less or equal to 0.25 of a second will be good.

    In addition, I'll take a look at the list.

    Thx

    Neta

  • 0 in reply to Neta Sherer
    TI__Guru* 91206 points

    Neta - 

    Thanks - to start with - could recommend the following device for you to review specs on - 

    TMP112 - this is I2C, +/-1.0C max accuracy (from -40 to 125C), +/-0.5C max from 0 to 65C. This part is available in a SOT563 package and the 1 tau step response time from 27C to 100C in the oil bath plunge test was measured at 800mSec. I saw you put 250mSec, but if you are not making such a swing, the response time would be much shorter. Other similar options would be TMP102, TMP275

    if you want to go up in accuracy performance, please look at TMP116 and TMP117