Datasheet

AD7190 Data Sheet
Rev. C | Page 18 of 40
SINC
3
CHOP ENABLED
Table 12. RMS Noise (nV) vs. Gain and Output Data Rate
Filter Word
(Decimal)
Output Data
Rate (Hz)
Settling
Time (ms) Gain of 1 Gain of 8 Gain of 16 Gain of 32 Gain of 64 Gain of 128
1023 1.56 1282 191 30 16.5 10 8 6.5
640 2.5 800 226 36 19 12 9 8.5
480 3.33 600 248 43 25 14 11 9
96 16.6 120 708 95 61 36 25 21
80 20 100 743 103 68 39 29 23
32 50 40 1061 159 92 57 41 36
16 100 20 1380 218 124 78 59 52
5 320 6.25 2829 418 234 142 106 94
2 800 2.5 40,100 4950 2475 1273 637 347
1 1600 1.25 312,550 38,540 19,800 9900 4950 2440
Table 13. Effective Resolution (Peak-to-Peak Resolution) vs. Gain and Output Data Rate
Filter Word
(Decimal)
Output Data
Rate (Hz)
Settling
Time (ms)
Gain of 1
1
Gain of 8
1
Gain of 16
1
Gain of 32
1
Gain of 64
1
Gain of 128
1
1023 1.56 1282 24 (23) 24 (22.5) 24 (22.5) 24 (22) 24 (21.5) 23.5 (21)
640 2.5 800 24 (22.5) 24 (22.5) 24 (22) 24 (22) 24 (21.5) 23 (20.5)
480 3.33 600 24 (22.5) 24 (22) 24 (22) 24 (21.5) 24 (21) 23 (20.5)
96
16.6
120
24 (21)
23.5 (21)
23.5 (20.5)
23 (20.5)
22.5 (20)
22 (19)
80 20 100 23.5 (21) 23.5 (21) 23 (20.5) 23 (20) 22.5 (19.5) 21.5 (19)
32 50 40 23 (20.5) 23 (20) 22.5 (20) 22.5 (19.5) 22 (19) 21 (18.5)
16 100 20 23 (20) 22.5 (19.5) 22.5 (19.5) 22 (19) 21.5 (18.5) 20.5 (18)
5 320 6.25 22 (19) 21.5 (19) 21.5 (18.5) 21 (18.5) 20.5 (18) 19.5 (17)
2 800 2.5 18 (15) 18 (15) 18 (15) 18 (15) 18 (15) 18 (15)
1 1600 1.25 15 (12) 15 (12.5) 15 (12) 15 (12) 15 (12) 15 (12)
1
The output peak-to-peak (p-p) resolution is listed in parentheses.