AD7148 Analog Devices, AD7148 Datasheet - Page 4

• Manufacturer Part Number: AD7148
• Manufacturer: Analog Devices

Specifications of AD7148

• Resolution (bits): 16bit
• # Chan: 8
• Sample Rate: 250kSPS
• Interface: I²C/Ser 2-Wire,Ser
• Analog Input Type: SE-Uni
• Ain Range: ± 8 pF (Delta C)
• Adc Architecture: Sigma-Delta
• Pkg Type: CSP

AD7148
TYPICAL AVERAGE CURRENT IN LOW POWER MODE
V
Table 2.
Low Power Mode Delay
200 ms
400 ms
600 ms
800 ms
MAXIMUM AVERAGE CURRENT IN LOW POWER MODE
V
Table 3.
Low Power Mode Delay
200 ms
400 ms
600 ms
800 ms
CC
CC
= 3.6 V, T = 25°C, load of 50 pF, unless otherwise noted.
= 3.6 V, load of 50 pF, unless otherwise noted.
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
20.83
25.3
34.11
18.17
20.43
24.9
17.28
18.79
21.79
16.84
17.97
20.23
1
27.71
32.96
43.28
24.61
27.26
32.51
23.58
25.35
28.87
23.06
24.39
27.04
Rev. A | Page 4 of 56
2
24.18
31.92
46.99
19.86
23.79
31.53
18.41
21.04
26.25
17.69
19.66
23.59
2
31.65
40.72
58.37
26.6
31.21
40.29
24.91
27.99
34.11
24.06
26.38
30.98
Current Values of Conversion Stages (μA)
Current Values of Conversion Stages (μA)
3
35.56
48.37
72.99
28.58
35.12
47.94
26.23
30.62
39.29
25.05
28.36
34.9
3
27.52
38.45
59.51
21.55
27.12
38.06
19.54
23.28
30.67
18.53
21.35
26.93
4
39.44
55.89
87.17
30.55
39
55.47
27.55
33.24
44.41
26.05
30.33
38.78
4
30.82
44.87
71.66
23.23
30.43
44.5
20.67
25.51
35.04
19.38
23.03
30.24
5
43.28
63.3
100.92
32.51
42.85
62.88
28.87
35.84
49.48
27.04
32.29
42.64
5
34.11
51.21
83.47
24.9
33.72
50.83
21.79
27.73
39.37
20.23
24.7
33.53
6
37.37
57.45
94.94
26.57
36.98
57.08
22.91
29.94
43.66
21.07
26.37
36.79
6
47.1
70.59
114.26
34.47
46.67
70.18
30.18
38.43
54.5
28.03
34.25
46.46
7
40.6
63.6
106.1
28.23
40.22
63.23
24.03
32.13
47.9
21.91
28.03
40.03
7
50.89
77.77
127.22
36.42
50.46
77.36
31.5
41
59.46
29.02
36.2
50.25
8
54.64
139.8
38.36
54.22
84.44
32.8
43.56
30
38.14
54.01
8
43.81
69.66
116.96
29.88
43.43
69.3
25.14
34.32
52.11
22.75
29.69
43.24
84.84
64.38