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AD7142 Datasheet(PDF) 4 Page - Analog Devices |
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AD7142 Datasheet(HTML) 4 Page - Analog Devices |
4 / 68 page AD7142 Rev. 0 | Page 4 of 68 Parameter Min Typ Max Unit Test Conditions/Comments POWER AVCC, DVCC 2.6 3.3 3.6 V VDRIVE 1.65 3.6 V Serial interface operating voltage ICC 0.9 1 mA In full power mode 20 μA Low power mode, converter idle, TA = 25°C 16 33 μA Low power mode, converter idle 4.5 μA Full shutdown, TA = 25°C 2.25 18 μA Full shutdown PLASTIC OVERLAY 1 CIN and CBULK are defined as follows: SENSOR BOARD CBULK CIN CAPACITIVE SENSOR Table 2. Typical Average Current in Low Power Mode, AVCC, DVCC = 3.6 V, T= 25°C, Load of 50 pF on SRC Pin, No Load on SRC Number of Conversion Stages, Current Values Expressed in μA Low Power Mode Delay Decimation Rate = 1 2 3 4 5 6 7 8 9 10 11 12 200 ms 128 26.4 33.3 40.1 46.9 53.5 60 66.5 72.8 79.1 85.2 91.3 97.3 256 35.6 49.1 62.2 74.9 87.3 99.3 111 122.3 133.4 144.2 154.7 164.9 400 ms 128 21.3 24.8 28.3 31.7 35.2 38.6 42 45.4 48.7 52 55.3 58.6 256 26 32.9 39.7 46.5 53.1 59.6 66.1 72.4 78.7 84.9 91 97 600 ms 128 19.6 21.9 24.3 26.6 28.9 31.2 33.5 35.8 38.1 40.4 42.6 44.8 256 22.7 27.4 32 36.6 41.1 45.6 50 54.4 58.8 63.1 67.4 71.6 800 ms 128 18.7 20.5 22.2 24 25.7 27.5 29.2 31 32.7 34.4 36.1 37.8 256 21.1 24.6 28.1 31.5 35 38.4 41.8 45.2 48.5 51.8 55.1 58.4 Table 3. Maximum Average Current in Low Power Mode, AVCC, DVCC = 3.6 V, Load of 50 pF on SRC Pin, No Load on SRC Number of Conversion Stages, Current Values Expressed in μA Low Power Mode Delay Decimation Rate = 1 2 3 4 5 6 7 8 9 10 11 12 200 ms 128 45.4 53.6 61.5 69.4 77.1 84.7 92.2 99.6 106.8 113.9 121 127.9 256 56.2 72 87.2 102 116.3 130.2 143.7 156.8 169.5 181.8 193.8 205.5 400 ms 128 39.5 43.6 47.7 51.8 55.8 59.8 63.7 67.6 71.5 75.4 79.2 83 256 45 53.1 61.1 68.9 76.7 84.3 91.8 99.1 106.4 113.6 120.6 127.5 600 ms 128 37.5 40.3 43 45.8 48.5 51.2 53.9 56.5 59.2 61.8 64.5 67.1 256 41.2 46.7 52.1 57.4 62.7 67.9 73.1 78.2 83.3 88.3 93.3 98.2 800 ms 128 36.5 38.6 40.7 42.7 44.8 46.8 48.8 50.9 52.9 54.9 56.9 58.9 256 39.3 43.4 47.5 51.5 55.6 59.5 63.5 67.4 71.3 75.2 79 82.8 |
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