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STM32C071 Do we need Vref for the internal temperature computation

Matthias32
Associate

A new question moved from this thread.

In many examples they use the Vref int for the calculation of the temperature. Do I need it for the C0 also or can it be done without?

1 REPLY 1
LCE
Principal II

I only know about some other STM32 types:

for these there's usually the info at which Vref (often VDDA) the internal temperature sensor was calibrated, so in case it's not the same it is needed.

I just see the datasheet excerpt from the other thread, there you can see the formula with VDDA in relation to 3.0
-> and the 3.0 V is probably the voltage at which the sensor was calibrated.