ad7147a-1acbz-r Analog Devices, Inc., ad7147a-1acbz-r Datasheet - Page 4

• Manufacturer Part Number: ad7147a-1acbz-r
• Description: Captouch Programmable Controller For Single-electrode Capacitance Sensors
• Manufacturer: Analog Devices, Inc.

AD7147A
AVERAGE CURRENT SPECIFICATIONS
Table 2. Typical Average Current in Low Power Mode
Low Power
Mode Delay
200 ms
400 ms
600 ms
800 ms
1
Table 3. Maximum Average Current in Low Power Mode
Low Power
Mode Delay
200 ms
400 ms
600 ms
800 ms
1
V
V
CC
CC
= 3.3 V, T
= 3.6 V, T
A
A
= 25°C, load = 50 pF.
= −40°C to +85°C, load = 50 pF.
Decimation
Rate
64
128
256
64
128
256
64
128
256
64
128
256
Decimation
Rate
64
128
256
64
128
256
64
128
256
64
128
256
1
32.62
39.95
54.35
28.32
32.02
39.35
26.88
29.36
34.27
26.16
28.02
31.72
1
22.27
27.95
39.15
18.89
21.76
27.45
17.76
19.68
23.49
17.20
18.63
21.50
2
38.12
50.78
75.37
31.10
37.53
50.19
28.74
33.05
41.58
27.56
30.80
37.23
2
26.53
36.37
55.53
21.04
26.03
35.88
19.20
22.54
29.16
18.28
20.79
25.78
3
43.58
61.44
95.72
33.86
42.99
60.86
30.59
36.72
48.80
28.95
33.56
42.69
3
30.77
44.66
71.44
23.19
30.27
44.18
20.63
25.39
34.78
19.35
22.93
30.02
4
48.99
71.92
115.42
36.61
48.40
71.35
32.43
40.37
55.95
30.33
36.31
48.11
1
4
34.98
52.84
86.89
25.32
34.48
52.36
22.06
28.22
40.34
20.43
25.07
34.23
1
Rev. 0 | Page 4 of 68
Current Values of Conversion Stages (μA)
Current Values of Conversion Stages (μA)
5
54.35
82.23
134.51
39.35
53.77
81.67
34.27
44.00
63.01
31.72
39.05
53.48
5
39.15
60.89
101.9
27.45
38.66
60.41
23.49
31.04
45.84
21.50
27.20
38.41
6
43.29
68.82
116.48
29.57
42.80
68.35
24.91
33.85
51.29
22.57
29.32
42.56
6
59.67
92.37
153.02
42.08
59.09
91.82
36.11
47.60
70.00
33.10
41.78
58.80
7
47.40
76.64
130.67
31.68
46.92
76.18
26.33
36.64
56.69
23.64
31.43
46.67
7
64.95
102.36
170.96
44.80
64.38
101.82
37.94
51.19
76.92
34.48
44.50
64.09
8
70.18
112.18
188.38
47.50
69.61
111.65
39.76
54.76
83.76
35.85
47.21
69.33
8
51.48
84.34
144.47
33.78.
51.00
83.89
27.75
39.42
62.03
24.71
33.53
50.76
9
55.53
91.94
157.90
35.88
55.05
91.49
29.16
42.18
67.32
25.78
35.63
54.82
9
75.37
121.85
205.28
50.19
74.81
121.33
41.58
58.31
90.52
37.23
49.90
74.53
10
59.55
99.42
170.98
37.96
59.08
98.98
30.57
44.93
72.56
26.84
37.72
58.84
10
80.52
131.27
221.70
52.88
79.96
130.86
43.39
61.84
97.21
38.60
52.59
79.68
11
63.54
106.80
183.71
40.04
63.07
106.37
31.98
47.67
77.75
27.90
39.80
62.84
11
85.63
140.74
237.65
55.55
85.07
140.24
45.20
65.35
103.83
39.96
55.26
84.80
12
67.51
114.08
196.11
42.11
67.04
113.65
33.38
50.39
82.89
28.96
41.87
66.80
12
90.69
149.97
253.15
58.21
90.14
149.47
47.00
68.84
110.39
41.33
57.92
89.87