Yes, we're using the internal reference. On a board at room temp (cool to the touch):
And I should have said 0.1 C/V.
ADC says about 5000
5000*4.096 / 65536 = 312 mV
(312-283)+25 = 54, no way!
0.1*(312-283)+25 = 27.9, about right!
Or, referring to the first post in this thread:
0.1*(262-283)+25 = 22.9 C, more reasonable than 4.5 C at room temp.
But how to explain the difference between your data and 3 users?
Is it when the internal reference is used?
I'm using "11111111001101" for the config register (unipolar, scan then temp)
Regards,
Frank