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Original question:

TMP1075: How to calculate the response time of TI temp sensors?

TMP1075: The time until the actual temperature matches the data value

R.Fukunaga
Expert 1545 points
Part Number: TMP1075

Hi all,

When I turn on TMP1075 and measure the temperature value, the data is not accurate immediately after power on.

The standard is ±1°C, but it seems to be different by 2-3 °C.

It will become suitable after some time.

How long after the power is turned on does the actual temperature match the data value?

Best Regards,

Ryusuke

  • +1
    TI__Expert 5790 points

    Hello Ryusuke,

    From power-on reset, it recommended to to wait 0.3ms before collecting the initial data. After 0.3ms, data should be accurate. Depending on how the conversion is set within the configuration register, it takes at maximum 220ms to refresh the temperature measurement. 

    Best Regards,

    Meredith McKean