C8051F360DK Silicon Laboratories Inc, C8051F360DK Datasheet - Page 49
C8051F360DK
Manufacturer Part Number
C8051F360DK
Description
KIT DEV FOR C8051F360 FAMILY
Manufacturer
Silicon Laboratories Inc
Type
MCUr
Specifications of C8051F360DK
Contents
Evaluation Board, Power Supply, USB Cables, Adapter and Documentation
Processor To Be Evaluated
C8051F36x
Interface Type
USB
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
For Use With/related Products
C8051F360, F361, F362, F363, F364, F365, F366, F367, F368, F369
Lead Free Status / Rohs Status
Lead free / RoHS Compliant
Other names
336-1410
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5.2.
The typical temperature sensor transfer function is shown in Figure 5.2. The output voltage (V
positive ADC input when the temperature sensor is selected by bits AMX0P4-0 in register AMX0P.
The uncalibrated temperature sensor output is extremely linear and suitable for relative temperature mea-
surements (see Table 5.1 for linearity specifications). For absolute temperature measurements, gain and/
or offset calibration is recommended. Typically a 1-point calibration includes the following steps:
Figure 5.3 shows the typical temperature sensor error assuming a 1-point calibration at 25 °C. Note that
parameters which affect ADC measurement, in particular the voltage reference value, will also
affect temperature measurement.
Temperature Sensor
Step 1. Control/measure the ambient temperature (this temperature must be known).
Step 2. Power the device, and delay for a few seconds to allow for self-heating.
Step 3. Perform an ADC conversion with the temperature sensor selected as the positive input
Step 4. Calculate the offset and/or gain characteristics, and store these values in non-volatile
Figure 5.2. Typical Temperature Sensor Transfer Function
and GND selected as the negative input.
memory for use with subsequent temperature sensor measurements.
1200
1100
1000
(mV)
900
800
700
-50
0
C8051F360/1/2/3/4/5/6/7/8/9
Rev. 1.0
V
TEMP
= Slope*(TEMP
50
C
) +
100
Offset
(Celsius)
mV
TEMP
) is the
49
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