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AD7195 temperature sensor calibration/scale

Question asked by tcachat on Sep 20, 2012
Latest reply on Sep 26, 2012 by MaryMc

At room temperature, I read raw values around 0x312cef for channel 2, the temperature sensor. It is not consistent with the formula on page 32 of the documentation. My configuration is

MODE=0x040001

CONFIG=0xC00417.

Does it depend on the gain? I have tried with gain=1 and have the same result.

 

The value do increase when I warm the device, up to 0x313804 (when I put my finger on the device for a few seconds)

 

Thank you in advance.

 

My question is related to http://ez.analog.com/message/20550, but I think it is better to start a new thread

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