C8051F320/1
5.2. Temperature Sensor
The typical temperature sensor transfer function is shown in Figure 5.2. The output voltage (VTEMP) is the positive
ADC input when the temperature sensor is selected by bits AMX0P4-0 in register AMX0P.
Figure 5.2. Typical Temperature Sensor Transfer Function
(mV)
1000
900
800
VTEMP = 2.86(TEMPC) + 776 mV
700
600
500
-50
0
50
100 (Celsius)
Note that parameters which affect ADC measurement, in particular the voltage reference value, will also affect
temperature measurement.
Rev. 1.1
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