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M360 internal temperature

Question asked by gmthomas on Feb 20, 2013
Latest reply on Feb 22, 2013 by gmthomas

Hi,

 

I've had the internal temperature channel working well before now with the returned count of around 9190000 giving 25 C using the calculation and constants in the user guide.

 

Now, using a rev D chip with a 1.25V external reference we are getting values of around 12780000 which only gives correct temperatures if we assume 25 C is 59.527mV instead of 82.1mV.

 

Are the constants in the temperature calculations affected by different values for the VRef or is this another change in the rev D chip thats not in the data sheet?

 

Glyn

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