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ADBMS1818ASWZ-R7 数据表(PDF) 63 Page - Analog Devices |
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ADBMS1818ASWZ-R7 数据表(HTML) 63 Page - Analog Devices |
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63 / 92 page  Data Sheet ADBMS1818 THEORY OF OPERATION analog.com Rev. B | 63 of 92 Table 53. Command Bit Descriptions Name Description Values MD, Bits[1:0] ADC Mode MD ADCOPT(CFGAR0, Bit 0) = 0 ADCOPT(CFGAR0, Bit 0) = 1 00 422 Hz mode 1 kHz mode 01 27 kHz mode (fast) 14 kHz mode 10 7 kHz mode (normal) 3 kHz mode 11 26 Hz mode (filtered) 2 kHz mode DCP Discharge Permitted DCP 0 Discharge Not Permitted 1 Discharge Permitted CH, Bits[2:0] Cell Selection for ADC Conversion Total Conversion Time in the 8 ADC Modes CH 27 kHz 14 kHz 7 kHz 3 kHz 2 kHz 1 kHz 422 Hz 26 Hz 000 All cells 1.1 ms 1.3 ms 2.3 ms 3.0 ms 4.4 ms 7.2 ms 12.8 ms 201 ms 001 Cells 1, 7, 13 203 μs 232 μs 407 μs 523 μs 756 μs 1.2 ms 2.2 ms 34 ms 010 Cells 2, 8, 14 203 μs 232 μs 407 μs 523 μs 756 μs 1.2 ms 2.2 ms 34 ms 011 Cells 3, 9, 15 203 μs 232 μs 407 μs 523 μs 756 μs 1.2 ms 2.2 ms 34 ms 100 Cells 4, 10, 16 203 μs 232 μs 407 μs 523 μs 756 μs 1.2 ms 2.2 ms 34 ms 101 Cells 5, 11, 17 203 μs 232 μs 407 μs 523 μs 756 μs 1.2 ms 2.2 ms 34 ms 110 Cells 6, 12, 18 203 μs 232 μs 407 μs 523 μs 756 μs 1.2 ms 2.2 ms 34 ms PUP Pull-Up/Pull- Down Current for Open Wire Conversions PUP 0 Pull-down current 1 Pull-up current Self Test Conversion Result ST, Bits[1:0] Self Test Mode Selection ST 27 kHz 14 kHz 7 kHz 3 kHz 2 kHz 1 kHz 422 Hz 26 Hz 01 Self Test 1 0x9565 0x9553 0x9555 0x9555 0x9555 0x9555 0x9555 0x9555 10 Self test 2 0x6A9A 0x6AAC 0x6AAA 0x6AAA 0x6AAA 0x6AAA 0x6AAA 0x6AAA CHG, Bits[2:0] GPIO Selection for ADC Conversion Total Conversion Time in the 8 ADC Modes CHG 27 kHz 14 kHz 7 kHz 3 kHz 2 kHz 1 kHz 422 Hz 26 Hz 000 GPIO1 to GPIO5, 2nd Reference, GPIO6 to GPIO9 1.8 ms 2.1 ms 3.9 ms 5.0ms 7.4 ms 12.0 ms 21.3 ms 335 ms 001 GPIO1 and GPIO6 380 μs 439 μs 788 μs 1.0 ms 1.5 ms 2.4 ms 4.3 ms 67.1 ms 010 GPIO2 and GPIO7 380 μs 439 μs 788 μs 1.0 ms 1.5 ms 2.4 ms 4.3 ms 67.1 ms 011 GPIO3 and GPIO8 380 μs 439 μs 788 μs 1.0 ms 1.5 ms 2.4 ms 4.3 ms 67.1 ms 100 GPIO4 and GPIO9 380 μs 439 μs 788 μs 1.0 ms 1.5 ms 2.4 ms 4.3 ms 67.1 ms 101 GPIO5 200 μs 229 μs 403 μs 520 μs 753 μs 1.2 ms 2.1 ms 34 ms 110 2nd Reference 200 μs 229 μs 403 μs 520 μs 753 μs 1.2 ms 2.1 ms 34 ms CHST, Bits[2:0]1 Status Group Selection Total Conversion Time in the 8 ADC Modes CHST 27 kHz 14 kHz 7 kHz 3 kHz 2 kHz 1 kHz 422 Hz 26 Hz 000 SC, ITMP, VA, VD 742 μs 858 μs 1.6 ms 2.0 ms 3.0 ms 4.8 ms 8.5 ms 134 ms |
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