Datasheet

Data Sheet AD7194
Rev. A | Page 17 of 56
FAST SETTLING
Table 12. RMS Noise (nV) vs. Gain and Output Data Rate
Filter Word
(Decimal) Average
Output Data
Rate (Hz)
Settling
Time (ms)
Gain of
1
8
16
32
64
128
96 16 2.63 380 410 87 52 33 15 12
30
16
8.4
118.75
700
140
71
43
30
21
6 16 42.10 23.75 1500 270 150 82 56 47
5 16 50.53 19.79 1600 280 160 88 61 52
2 16 126.32 7.92 2700 380 210 130 94 85
1 16 252.63 3.96 3700 540 300 190 140 120
Table 13. Peak-to-Peak Noise (nV) vs. Gain and Output Data Rate
Filter Word
(Decimal) Average
Output Data
Rate (Hz)
Settling
Time (ms)
Gain of
1 8 16 32 64 128
96 16 2.63 380 2500 450 260 180 100 70
30 16 8.4 118.75 4200 900 470 280 190 130
6
16
42.10
23.75
10,000
1800
950
540
360
300
5 16 50.53 19.79 11,000 1900 1000 580 390 330
2 16 126.32 7.92 16,000 2800 1500 850 580 510
1 16 252.63 3.96 23,000 4500 2000 1200 850 740
Table 14. Effective Resolution (Peak-to-Peak Resolution) vs. Gain and Output Data Rate
Filter Word
(Decimal) Average
Output Data
Rate (Hz)
Settling
Time (ms)
Gain of
1
1 8 16 32 64 128
96 16 2.63 380 24 (21.9) 23.8 (21.4) 23.5 (21.2) 23.2 (20.7) 23.3 (20.6) 22.6 (20.1)
30 16 8.4 118.75 23.8 (21.2) 23.1 (20.4) 23.1 (20.3) 22.8 (20.1) 22.3 (19.6) 21.8 (19.2)
6 16 42.10 23.75 22.7 (19.9) 22.1 (19.4) 22 (19.3) 21.9 (19.1) 21.4 (18.7) 20.7 (18)
5 16 50.53 19.79 22.6 (19.8) 22.1 (19.3) 21.9 (19.3) 21.8 (19) 21.3 (18.6) 20.5 (17.9)
2 16 126.32 7.92 21.8 (19.3) 21.6 (18.8) 21.5 (18.7) 21.2 (18.5) 20.7 (18) 19.8 (17.2)
1 16 252.63 3.96 21.4 (18.7) 21.1 (18.1) 21 (18.3) 20.6 (18) 20.1 (17.5) 19.3 (16.7)
1
The output peak-to-peak (p-p) resolution is listed in parentheses.