SBAS707B June 2016 – January 2018 ADS8910B , ADS8912B , ADS8914B
PRODUCTION DATA.
This register selects the margining to be added to or subtracted from the reference buffer output; see the Reference Buffer Module section.
7 | 6 | 5 | 4 | 3 | 2 | 1 | 0 |
0 | 0 | EN_MARG | REF_OFST[4:0] | ||||
R-0b | R-0b | R/W-0b | R/W-00000b |
LEGEND: R/W = Read/Write; R = Read only; -n = value after reset |
Bit | Field | Type | Reset | Description |
---|---|---|---|---|
7-6 | 0 | R | 00b | Reserved bits. Reads return 00b. |
5 | EN_MARG | R/W | 0b | This bit enables margining feature. 0b = Margining is disabled 1b = Margining is enabled |
4-0 | REF_OFST[4:0] | R/W | 00000b | These bits select the reference offset value as per Table 20. |
REF_OFST[4:0] | ΔVREFBUFOUT (typical(1)) |
---|---|
00000b | 0 mV |
00001b | 280 µV |
00010b | 580 µV |
00011b | 840 µV |
00100b | 1.12 mV |
00101b | 1.4 mV |
00110b | 1.68 mV |
00111b | 1.96 mV |
01000b | 2.24 mV |
01001b | 2.52 mV |
01010b | 2.8 mV |
01011b | 3.08 mV |
01100b | 3.36 mV |
01101b | 3.64 mV |
01110b | 3.92 mV |
01111b | 4.2 mV |
10000b | –4.5 mV |
10001b | –4.22 mV |
10010b | –3.94 mV |
10011b | –3.66 mV |
10100b | –3.38 mV |
10101b | –3.1 mV |
10110b | –2.82 mV |
10111b | –2.54 mV |
11000b | –2.26 mV |
11001b | –1.98 mV |
11010b | –1.7 mV |
11011b | –1.42 mV |
11100b | –1.14 mV |
11101b | –860 µV |
11110b | –580 µV |
11111b | –280 µV |