AD7143 Analog Devices, AD7143 Datasheet - Page 4

• Manufacturer Part Number: AD7143
• Description: Programmable Controller for Capacitance Touch Sensors
• Manufacturer: Analog Devices

Specifications of AD7143

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

AD7143
Table 2. Typical Average Current in Low Power Mode, V
Low Power Mode Delay
200 ms
400 ms
600 ms
800 ms
Table 3. Maximum Average Current in Low Power Mode, V
Low Power Mode Delay
200 ms
400 ms
600 ms
800 ms
Decimation Rate
256
256
256
256
Decimation Rate
128
256
128
256
128
256
128
256
128
128
128
128
CC
1
26.4
35.6
21.3
26
19.6
22.7
18.7
21.1
1
42.2
53.2
36.1
41.8
34.1
37.9
33.1
35.9
Rev. 0 | Page 4 of 56
= 3.6 V, T = 25°C, Load of 50 pF on SRC Pin
CC
= 3.6 V, Load of 50 pF on SRC Pin
Number of Conversion Stages, Current Values Expressed in μA
Number of Conversion Stages, Current Values Expressed in μA
2
50.5
69.3
40.4
50.1
37.0
43.5
35.2
40.1
2
33.3
49.1
24.8
32.9
21.9
27.4
20.5
24.6
3
58.7
84.9
44.5
58.2
39.7
49.0
37.3
44.3
3
40.1
62.2
28.3
39.7
24.3
32
22.2
28.1
4
66.7
100.0
48.7
66.2
42.5
54.5
39.4
48.4
4
46.9
74.9
31.7
46.5
26.6
25.6
24
31.5
5
114.6
74.1
60.0
52.6
74.6
52.8
45.3
41.5
5
53.5
87.3
35.2
53.1
28.9
41.1
25.7
35
6
82.3
128.7
56.9
82.0
48.1
65.2
43.6
56.6
6
60
99.3
38.6
59.6
31.2
45.6
27.5
38.4
7
90.0
142.5
60.9
89.5
50.8
70.5
45.7
60.7
7
66.5
111
42
66.1
33.5
50
29.2
41.8
8
72.8
122.3
45.4
72.4
35.8
54.4
31
45.2
8
97.5
155.8
64.5
97.1
53.4
75.7
47.7
64.7