PXS20RM Datasheet, PDF (1357/1368 Pages) Freescale Semiconductor, Inc – PXS20 Microcontroller

K = -^P----¹---–-----^P----²-
C₂ – C₁
Next, calculate the bandgap voltage V_BGAP:
V_BGAP = V_P + K  V_C
Next, calculate three ratios R as follows:
Finally, calculate the device temperature:
R₁
=
P_{----1----–----}C_-----1
V_BGAP
R₂
=
P_{----2----–----}C_-----2
V_BGAP
R = ^V----^P----–-----^V----^C-
V_BGAP
T
=
–
40
+
1---5---0-----_---_--R_{------–----}R_----2--_-
R₁ – R₂
Temperature Sensor (TSENS)
Freescale Semiconductor
PXS20 Microcontroller Reference Manual, Rev. 1
50-3