Datasheet

AD7190 Data Sheet
Rev. C | Page 16 of 40
SINC
3
CHOP DISABLED
Table 8. 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 4.7 639.4 270 42 23 13.5 10.5 9
640 7.5 400 320 50 27 17 13 11.5
480 10 300 350 60 35 19 15 12.5
96
50
60
1000
134
86
50
35
29
80
60
50
1050
145
95
55
40
32
32 150 20 1500 225 130 80 58 50
16 300 10 1950 308 175 110 83 73
5 960 3.125 4000 590 330 200 150 133
2 2400 1.25 56,600 7000 3500 1800 900 490
1 4800 0.625 442,000 55,000 28,000 14,000 7000 3450
Table 9. 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 4.7 639.4 24 (22.5) 24 (22) 24 (22) 24 (21.5) 24 (21) 23 (20.5)
640 7.5 400 24 (22) 24 (22) 24 (21.5) 24 (21.5) 23.5 (21) 22.5 (20)
480 10 300 24 (22) 24 (21.5) 24 (21.5) 24 (21) 23.5 (20.5) 22.5 (20)
96
50
60
23.5 (20.5)
23 (20.5)
23 (20)
22.5 (20)
22 (19.5)
21.5 (18.5)
80 60 50 23 (20.5) 23 (20.5) 22.5 (20) 22.5 (19.5) 22 (19) 21 (18.5)
32 150 20 22.5 (20) 22.5 (19.5) 22 (19.5) 22 (19) 21.5 (18.5) 20.5 (18)
16 300 10 22.5 (19.5) 22 (19) 22 (19) 21.5 (18.5) 21 (18) 20 (17.5)
5 960 3.125 21.5 (18.5) 21 (18.5) 21 (18) 20.5 (18) 20 (17.5) 19 (16.5)
2
2400
1.25
17.5 (14.5)
17.5 (14.5)
17.5 (14.5)
17.5 (14.5)
17.5 (14.5)
17.5 (14.5)
1 4800 0.625 14.5 (11.5) 14.5 (11.5) 14.5 (11.5) 14.5 (11.5) 14.5 (11.5) 14.5 (11.5)
1
The output peak-to-peak (p-p) resolution is listed in parentheses.