AD7143ACPZ-1500RL7 datasheet(5/57 Pages) AD

Teilenummer	AD7143ACPZ-1500RL7

Bauteilbeschribung	Programmable Controller for Capacitance Touch Sensors

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AD7143

Rev. 0 | Page 4 of 56

Table 2. Typical Average Current in Low Power Mode, VCC = 3.6 V, T = 25°C, Load of 50 pF on SRC Pin

Number of Conversion Stages, Current Values Expressed in μA

Low Power Mode Delay

Decimation Rate

1

2

3

4

5

6

7

8

200 ms

128

26.4

33.3

40.1

46.9

53.5

60

66.5

72.8

256

35.6

49.1

62.2

74.9

87.3

99.3

111

122.3

400 ms

128

21.3

24.8

28.3

31.7

35.2

38.6

42

45.4

256

26

32.9

39.7

46.5

53.1

59.6

66.1

72.4

600 ms

128

19.6

21.9

24.3

26.6

28.9

31.2

33.5

35.8

256

22.7

27.4

32

25.6

41.1

45.6

50

54.4

800 ms

128

18.7

20.5

22.2

24

25.7

27.5

29.2

31

256

21.1

24.6

28.1

31.5

35

38.4

41.8

45.2

Table 3. Maximum Average Current in Low Power Mode, VCC = 3.6 V, Load of 50 pF on SRC Pin

Number of Conversion Stages, Current Values Expressed in μA

Low Power Mode Delay

Decimation Rate

1

2

3

4

5

6

7

8

200 ms

128

42.2

50.5

58.7

66.7

74.6

82.3

90.0

97.5

256

53.2

69.3

84.9

100.0

114.6

128.7

142.5

155.8

400 ms

128

36.1

40.4

44.5

48.7

52.8

56.9

60.9

64.5

256

41.8

50.1

58.2

66.2

74.1

82.0

89.5

97.1

600 ms

128

34.1

37.0

39.7

42.5

45.3

48.1

50.8

53.4

256

37.9

43.5

49.0

54.5

60.0

65.2

70.5

75.7

800 ms

128

33.1

35.2

37.3

39.4

41.5

43.6

45.7

47.7

256

35.9

40.1

44.3

48.4

52.6

56.6

60.7

64.7

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