AD7147 Просмотр технического описания (PDF) - Analog Devices
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AD7147 Datasheet PDF : 71 Pages
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Data Sheet
AD7147
AVERAGE CURRENT SPECIFICATIONS
Table 2. Typical Average Current in Low Power Mode1
Low Power Decimation
Mode Delay Rate
1
2
3
200 ms
64
20.83 24.18 27.52
128
25.3 31.92 38.45
256
34.11 46.99 59.51
400 ms
64
18.17 19.86 21.55
128
20.43 23.79 27.12
256
24.9 31.53 38.06
600 ms
64
17.28 18.41 19.54
128
18.79 21.04 23.28
256
21.79 26.25 30.67
800 ms
64
16.84 17.69 18.53
128
17.97 19.66 21.35
256
20.23 23.59 26.93
Current Values of Conversion Stages (μA)
4
5
6
7
8
9
30.82 34.11 37.37 40.6 43.81 46.99
44.87 51.21 57.45 63.6 69.66 75.63
71.66 83.47 94.94 106.1 116.96 127.52
23.23 24.9 26.57 28.23 29.88 31.53
30.43 33.72 36.98 40.22 43.43 46.62
44.5 50.83 57.08 63.23 69.3 75.28
20.67 21.79 22.91 24.03 25.14 26.25
25.51 27.73 29.94 32.13 34.32 36.49
35.04 39.37 43.66 47.9 52.11 56.27
19.38 20.23 21.07 21.91 22.75 23.59
23.03 24.7 26.37 28.03 29.69 31.34
30.24 33.53 36.79 40.03 43.24 46.43
10
50.16
81.52
137.81
33.17
49.78
81.17
27.36
38.65
60.39
24.43
32.98
49.6
11
53.3
87.33
147.82
34.81
52.93
86.98
28.47
40.81
64.47
25.26
34.62
52.74
12
56.41
93.05
157.58
36.44
56.05
92.71
29.57
42.95
68.51
26.09
36.25
55.86
1 VCC = 3.3 V, TA = 25°C, load = 50 pF.
Table 3. Maximum Average Current in Low Power Mode1
Low Power Decimation
Current Values of Conversion Stages (μA)
Mode Delay Rate
1
2
3
4
5
6
7
8
9
200 ms
64
27.96 32.06 36.12 40.15 44.16 48.12 52.06 55.97 59.85
128
33.41 41.49 49.44 57.26 64.97 72.55 80.02 87.37 94.61
256
44.16 59.85 75.05 89.79 104.09 117.97 131.45 144.53 157.25
400 ms
64
24.74 26.8 28.86 30.91 32.95 34.99 37.01 39.03 41.04
128
27.49 31.59 35.66 39.7 43.71 47.68 51.62 55.53 59.41
256
32.95 41.04 49 56.83 64.54 72.12 79.6 86.96 94.2
600 ms
64
23.66 25.04 26.42 27.79 29.17 30.53 31.89 33.25 34.61
128
25.5 28.25 30.99 33.71 36.41 39.1 41.78 44.44 47.09
256
29.17 34.61 40 45.33 50.6 55.82 60.98 66.09 71.15
800 ms
64
23.12 24.16 25.19 26.23 27.26 28.29 29.32 30.34 31.36
128
24.5 26.57 28.63 30.68 32.72 34.76 36.79 38.8 40.81
256
27.26 31.36 35.44 39.47 43.48 47.46 51.4 55.31 59.19
10
63.69
101.74
169.61
43.04
63.26
101.34
35.96
49.72
76.15
32.38
42.81
63.04
11
67.51
108.77
181.63
45.03
67.08
108.37
37.31
52.34
81.1
33.4
44.81
66.86
12
71.29
115.69
193.33
47.02
70.87
115.3
38.66
54.95
86.01
34.42
46.79
70.66
1 VCC = 3.6 V, TA = −40°C to +85°C, load = 50 pF.
Rev. E | Page 5 of 70
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