Atmel Evaluation Kit for ATXMEGA384C3, 8/16-bit XMEGA C3 Microcontroller Atmel ATXMEGAC3-XPLD ATXMEGAC3-XPLD データシート
製品コード
ATXMEGAC3-XPLD
Atmel AVR1925: XMEGA-C3 Xplained Hardware User’s Guide [APPLICATION NOTE]
42053A
−AVR−02/2013
10
Table 4-7. Resistance vs. temperature (from Murata).
Temp.
[°C]
NTC resistance
[kΩ]
Temp.
[°C]
NTC resistance
[kΩ]
Temp.
[°C]
NTC resistance
[kΩ]
Temp.
[°C]
NTC resistance
[kΩ]
-30
2197.225
0
357.012
30
79.222
60
22.224
-29
2055.558
1
338.006
31
75.675
61
21.374
-28
1923.932
2
320.122
32
72.306
62
20.561
-27
1801.573
3
303.287
33
69.104
63
19.782
-26
1687.773
4
287.434
34
66.061
64
19.036
-25
1581.881
5
272.500
35
63.167
65
18.323
-24
1483.100
6
258.426
36
60.415
66
17.640
-23
1391.113
7
245.160
37
57.797
67
16.986
-22
1305.413
8
232.649
38
55.306
68
16.360
-21
1225.531
9
220.847
39
52.934
69
15.760
-20
1151.037
10
209.710
40
50.677
70
15.184
-19
1081.535
11
199.196
41
48.528
71
14.631
-18
1016.661
12
189.268
42
46.482
72
14.101
-17
956.080
13
179.890
43
44.533
73
13.592
-16
899.481
14
171.028
44
42.675
74
13.104
-15
846.579
15
162.651
45
40.904
75
12.635
-14
797.111
16
154.726
46
39.213
76
12.187
-13
750.834
17
147.232
47
37.601
77
11.757
-12
707.524
18
140.142
48
36.063
78
11.344
-11
666.972
19
133.432
49
34.595
79
10.947
-10
628.988
20
127.080
50
33.195
80
10.566
-9
593.342
21
121.066
51
31.859
81
10.200
-8
559.931
22
115.368
52
30.584
82
9.848
-7
528.602
23
109.970
53
29.366
83
9.510
-6
499.212
24
104.852
54
28.203
84
9.185
-5
471.632
25
100.000
55
27.091
85
8.873
-4
445.772
26
95.398
56
26.028
86
8.572
-3
421.480
27
91.032
57
25.013
87
8.283
-2
398.652
28
86.889
58
24.042
88
8.006
-1
377.193
29
82.956
59
23.113
89
7.738
Two common approximations can be used to model the temperature vs. resistance characteristic; these are the B
parameter and the Steinhart-Hart equations. Coefficients for both formulas can be calculated from
parameter and the Steinhart-Hart equations. Coefficients for both formulas can be calculated from
.
When the internal reference VCC/1.6 is used and the ADC is measuring in signed single ended mode the codes
in
in
can be read from the ADC at the various temperatures. The calculation is based on
.
Table 4-8. ADC codes vs. temperature (signed single ended mode with internal VCC/1.6 reference).
ADC input [V]
Temp. [°C]
ADC codes
ADC input [V]
Temp. [°C]
ADC codes
2.076
-14
2047
0.347
38
345
2.030
-13
2014
0.334
39
332
1.983
-12
1968
0.321
40
319
1.936
-11
1921
0.309
41
307
1.889
-10
1875
0.297
42
295
1.841
-9
1828
0.286
43
283