Datasheet

AD7195
Rev. 0 | Page 15 of 44
SINC
4
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 1.175 1702 198 85 41 18 7 6
640 1.875 1067 276 92 45 22 8.5 7
480 2.5 800 332 99 46 23 10 8
96 12.5 160 707 127 61 34 23 18
80 15 133 778 141 62 35 24 21
32 37.5 53.3 990 156 85 51 38 33
16 75 26.7 1344 191 106 67 51 45
5 240 8.33 2192 325 184 120 92 78
2 600 3.33 3606 523 297 191 148 134
1 1200 1.67 9900 1345 680 368 248 200
Table 13. Peak-to-Peak 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 1.175 1702 1131 474 212 92 46 40
640 1.875 1067 1556 495 248 106 57 46
480 2.5 800 2121 530 255 134 71 50
96 12.5 160 4243 707 368 198 127 120
80 15 133 5091 849 424 212 156 134
32 37.5 53.3 5870 1061 530 290 240 219
16 75 26.7 7780 1202 707 424 311 304
5 240 8.33 14,142 2121 1273 778 573 502
2 600 3.33 22,627 3606 1980 1202 990 850
1 1200 1.67 60,800 9192 4950 2475 1697 1345
Table 14. 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 1.175 1702 24 (23.1) 24 (21.8) 24 (21.8) 24 (21.7) 24 (21.7) 23.6 (20.9)
640 1.875 1067 24 (22.6) 23.9 (21.4) 23.9 (21.4) 23.9 (21.4) 23.9 (21.4) 23.3 (20.7)
480 2.5 800 24 (22.2) 23.8 (21.3) 23.8 (21.3) 23.8 (21.3) 23.8 (21.1) 23.2 (20.6)
96 12.5 160 23.8 (21.2) 23.5 (20.9) 23.4 (20.9) 23.2 (20.6) 22.7 (20.2) 21.9 (19.3)
80 15 133 23.6 (20.9) 23.3 (20.6) 23.3 (20.5) 23 (20.5) 22.6 (19.9) 21.8 (19.1)
32 37.5 53.3 23.2 (20.7) 22.9 (20.2) 22.8 (20.2) 22.5 (20) 22 (19.3) 21.1 (18.4)
16 75 26.7 22.8 (20.3) 22.6 (20) 22.3 (19.8) 22.1 (19.5) 21.5 (18.9) 20.6 (18)
5 240 8.33 22.2 (19.4) 21.8 (19.2) 21.6 (18.9) 21.3 (18.6) 20.7 (18.1) 19.8 (17.2)
2 600 3.33 21.4 (18.8) 21.1 (18.4) 20.9 (18.2) 20.6 (18) 20 (17.3) 19.1 (16.5)
1 1200 1.67 19.9 (17.3) 19.8 (17.1) 19.8 (16.9) 19.6 (16.9) 19.3 (16.5) 18.5 (15.8)
1
The output peak-to-peak (p-p) resolution is listed in parentheses.
When ac excitation is enabled, the rms noise and resolution is the same as for chop enabled mode.