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TMP006 Minimum temperature behavior

Sean Cloghesy
Prodigy 20 points
Other Parts Discussed in Thread: TMP006

Hi,

I am going to be using the TMP006 application where temperatures of less than -45 degrees C can be experienced. I do not need accurate measurements at that temperature, but I would like to know how the output will behave. Will the readings bottom out at -40 degC? Or will the readings become unpredictable?

thanks

-Sean

  • 0
    TI__Mastermind 27715 points

    Hello Sean,

    The absolute minimum operating temperature of the TMP006 is -55°C, and the local and IR temperature sensors can function down to that temperature. However, if the ambient temperature drops lower than -55°C we can not guarantee the behavior of the device.

    Best regards,

    Ian Williams
    Linear Applications Engineer
    Precision Analog 

  • 0 in reply to Ian Williams
    Prodigy 20 points

    Thanks for your reply.

    I see in the datasheet that the minimum operational range is -55 degC, but it also states that the "Specified Range" minimum is -40 degC. How is the temperature read from the sensor affected when the object is between -40 and -55degC? Will read temperature bottom out at -40degC or will they become erratic?

    thanks again

    -Sean  

  • 0 in reply to Sean Cloghesy
    TI__Mastermind 27715 points

    Hello Sean,

    The specified range is the range over which we guarantee that the device will perform within the data sheet specifications. The absolute min/max range is the range over which the device will function without possibility of damage or erratic behavior. Therefore, when the ambient temperature is between -40°C and -55°C the TMP006 will still operate, but its performance will likely decrease. The temperature will not "bottom out" at -40°C since the ambient temperature register can support values as low as -55°C.

    Best regards,

    Ian Williams