Data Sheet

TSYS01 Digital Temperature Sensor
TSYS01 Rev 11 www.meas-spec.com 2013-03
8/10
TEMPERATURE CALCULATION
CALIBRATION PARAMETER
Variable
Description
Command
Size / bit
Min
Max
Example
k
4
Coefficient k
4
of polynomial
0xA2
16
0
65535
28446
k
3
Coefficient k
3
of polynomial
0xA4
16
0
65535
24926
k
2
Coefficient k
2
of polynomial
0xA6
16
0
65535
36016
k
1
Coefficient k
1
of polynomial
0xA8
16
0
65535
32791
k
0
Coefficient k
0
of polynomial
0xAA
16
0
65535
40781
TEMPERATURE POLYNOMAL
ADC24: ADC value
ADC16: ADC24 / 256
T / °C = (-2) * k
4
* 10
-21
* ADC16
4
+
4 * k
3
* 10
-16
* ADC16
3
+
(-2) * k
2
* 10
-11
* ADC16
2
+
1 * k
1
* 10
-6
* ADC16 +
(-1.5) * k
0
* 10
-2
EXAMPLE
ADC24: 9378708
ADC16: 9378708 / 256 = 36636
T / °C = (-2) * 28446 * 10
-21
* 36636
4
+
4 * 24926 * 10
-16
* 36636
3
+
(-2 * 36016 * 10
-11
* 36636
2
+
1 * 32791 * 10
-6
* 36636 +
(-1.5) * 40781 * 10
-2
T / °C = 10.59