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AD7195
3
SINC
CHOP ENABLED
Table 15. RMS Noise (nV) vs. Gain and Output Data Rate
Filter Word
Output Data
(Decimal)
Rate (Hz)
1023
1.56
640
2.5
480
3.33
96
16.6
80
20
32
50
16
100
5
320
2
800
1
1600
Table 16. Peak-to-Peak Noise (nV) vs. Gain and Output Data Rate
Filter Word
Output Data
(Decimal)
Rate (Hz)
1023
1.56
640
2.5
480
3.33
96
16.6
80
20
32
50
16
100
5
320
2
800
1
1600
Table 17. Effective Resolution (Peak-to-Peak Resolution) vs. Gain and Output Data Rate
Filter Word
Output Data
(Decimal)
Rate (Hz)
1023
1.56
640
2.5
480
3.33
96
16.6
80
20
32
320
16
100
5
320
2
800
1
1600
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.
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Settling
Time (ms)
Gain of 1
Gain of 8
1282
205
88
800
332
95
600
431
103
120
778
113
100
849
120
40
1061
163
20
1379
218
6.25
2828
417
2.5
40,022
4950
1.25
312,540
38,890
Settling
Time (ms)
Gain of 1
Gain of 8
1282
1202
530
800
1697
566
600
2121
636
120
4667
686
100
4808
707
40
6293
990
20
9192
1414
6.25
17,680
2404
2.5
219,200
29,000
1.25
1,838,500
212,200
Settling
1
Time (ms)
Gain of 1
Gain of 8
1282
24 (23)
24 (21.5)
800
24 (22.5)
23.8 (21.3)
600
24 (22.5)
23.7 (21)
120
23.6 (21)
23.4 (20.8)
100
23.5 (21)
23.3 (20.6)
40
23.2 (20.5)
22.9 (20.3)
20
22.8 (20)
22.5 (19.8)
6.25
21.8 (19)
21.5 (19)
2.5
17.9 (15.4)
17.9 (15.4)
1.25
15 (12.4)
15 (12.4)
Rev. 0 | Page 16 of 44
Gain of 16
Gain of 32
37
17
40
21
41
23
61
35
67
39
92
57
124
78
233
141
2475
1273
19,800
9900
Gain of 16
Gain of 32
184
92
240
120
255
141
318
198
424
205
474
382
707
474
1556
849
15,560
8485
120,200
55,870
1
1
Gain of 16
Gain of 32
24 (21.5)
24 (21.5)
23.8 (21.3)
23.8 (21.3)
23.7 (21)
23.7 (21)
23.3 (20.8)
23.1 (20.5)
23.1 (20.5)
22.9 (20.5)
22.7 (20.2)
22.4 (19.8)
22.3 (19.8)
21.9 (19.3)
21.4 (18.6)
21.1 (18.5)
17.9 (15.3)
17.9 (15.2)
14.9 (12.3)
14.9 (12.3)
Gain of 64
Gain of 128
7.5
6.5
9
8
11.5
9
25
21
28
23
41
35
59
52
106
94
636
346
4950
2440
Gain of 64
Gain of 128
46
40
59
42
71
49
141
127
170
141
255
219
332
354
601
566
3960
2192
29,000
16,970
1
1
Gain of 64
Gain of 128
24 (21.5)
23.5 (20.9)
23.8 (21.3)
23.2 (20.8)
23.7 (21)
23.1 (20.6)
22.6 (20.1)
21.9 (19.2)
22.4 (19.8)
21.7 (19.1)
21.9 (19.2)
21.1 (18.4)
21.3 (18.8)
20.5 (17.8)
20.5 (18)
19.7 (17.1)
17.9 (15.2)
17.8 (15.1)
14.9 (12.3)
14.9 (12.2)
1
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