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ADFS7124-8BBCPZ Datasheet(PDF) 32 Page - Analog Devices

Part # ADFS7124-8BBCPZ
Description  8-Channel, Low Noise, Low Power, 24-Bit, Sigma-Delta ADC with PGA and Reference
PDF  93 Pages
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Manufacturer  AD [Analog Devices]
Direct Link  http://www.analog.com
Logo AD - Analog Devices

ADFS7124-8BBCPZ Datasheet(HTML) 32 Page - Analog Devices

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Data Sheet
ADFS7124-8
RMS NOISE AND RESOLUTION
analog.com
Rev. 0 | 32 of 93
Table 22. Effective Resolution (Peak-to-Peak Resolution) vs. Gain and Output Data Rate (Bits), Mid Power Mode
Output Data Rate (SPS)
Gain = 1
Gain = 2
Gain = 4
Gain = 8
Gain = 16
Gain = 32
Gain = 64
Gain = 128
16.67
22.1 (19.6)
21.8 (19.2)
21.5 (18.9)
20.9 (18.3)
20.4 (17.8)
19.8 (17.3)
19.2 (16.6)
18.4 (16)
20
22.1 (19.5)
21.8 (19.2)
21.5 (18.9)
20.9 (18.2)
20.4 (17.7)
19.8 (17.3)
19 (16.6)
18.3 (15.8)
25
22 (19.2)
21.6 (19.1)
21.4 (18.8)
20.7 (18.1)
20.3 (17.6)
19.7 (17.2)
18.9 (16.4)
18.2 (15.7)
27.27
21.9 (19)
21.5 (19)
21.3 (18.8)
20.7 (18.1)
21.1 (17.6)
19.7 (17.1)
18.9 (16.3)
18.2 (15.6)
Fast Settling Filter (Sinc4 + Sinc1)
Table 23. RMS Noise (Peak-to-Peak Noise) vs. Gain and Output Data Rate (µV), Mid Power Mode (Average by 16)
Filter Word
(Dec.)
Output Data Rate
(SPS)
Gain = 1
Gain = 2
Gain = 4
Gain = 8
Gain = 16
Gain = 32
Gain = 64
Gain = 128
96
3.125
0.36 (2.4)
0.23 (1.5)
0.15 (0.82)
0.1 (0.71)
0.078 (0.44)
0.056 (0.35)
0.045 (0.26)
0.038 (0.21)
30
10
0.67 (4.2)
0.44 (2.7)
0.26 (1.6)
0.18 (1.1)
0.14 (0.8)
0.1 (0.54)
0.08 (0.48)
0.067 (0.41)
6
50
1.5 (9)
0.96 (6.1)
0.57 (3.7)
0.42 (2.6)
0.32 (1.9)
0.22 (1.5)
0.18 (1.1)
0.15 (0.95)
5
60
1.6 (9.3)
1 (7.7)
0.62 (4)
0.46 (3)
0.33 (2)
0.24 (1.6)
0.2 (1.3)
0.17 (1.2)
2
150
2.5 (15)
1.6 (11)
1 (7.2)
0.76 (4.9)
0.57 (3.7)
0.41 (2.7)
0.32 (2.4)
0.29 (1.9)
1
300
5.2 (21)
3.1 (19)
1.8 (11)
1.4 (9.8)
0.92 (6.2)
0.62 (4.2)
0.49 (3)
0.41 (3)
Table 24. Effective Resolution (Peak-to-Peak Resolution) vs. Gain and Output Data Rate (Bits), Mid Power Mode (Average by 16)
Filter Word
(Dec.)
Output Data Rate
(SPS)
Gain = 1
Gain = 2
Gain = 4
Gain = 8
Gain = 16
Gain = 32
Gain = 64
Gain = 128
96
3.125
23.7 (21)
23.4 (20.7)
23 (20.5)
22.5 (19.8)
21.9 (19.4)
21.4 (18.8)
20.7 (18.2)
20 (17.5)
30
10
22.8 (20.2)
22.4 (19.8)
22.2 (19.5)
21.7 (19.1)
21 (18.6)
20.6 (18.1)
19.9 (17.3)
19.1 (16.5)
6
50
21.7 (19.1)
21.3 (18.6)
21.1 (18.4)
20.5 (17.9)
19.9 (17.3)
19.4 (16.7)
18.7 (16)
18 (15.2)
5
60
21.5 (19)
21.2 (18.4)
20.9 (18.2)
20.4 (17.8)
19.8 (17.2)
19.3 (16.6)
18.5 (15.9)
17.8 (15)
2
150
20.9 (18.3)
20.5 (17.8)
20.2 (17.4)
19.6 (17)
19.1 (16.4)
18.6 (15.8)
17.9 (15.2)
17.1 (14.3)
1
300
19.9 (17.3)
19.6 (17)
19.4 (16.8)
18.8 (16)
18.4 (15.6)
17.9 (15.2)
17.3 (14.7)
16.5 (13.7)
Fast Settling Filter (Sinc3 + Sinc1)
Table 25. RMS Noise (Peak-to-Peak Noise) vs. Gain and Output Data Rate (µV), Mid Power Mode (Average by 16)
Filter Word
(Dec.)
Output Data Rate
(SPS)
Gain = 1
Gain = 2
Gain = 4
Gain = 8
Gain = 16
Gain = 32
Gain = 64
Gain = 128
96
3.125
0.39 (2.4)
0.25 (1.5)
0.16 (1)
0.11 (0.67)
0.08 (0.48)
0.058 (0.31)
0.047 (0.27)
0.039 (0.23)
30
10
0.71 (4.2)
0.43 (2.5)
0.27 (1.6)
0.19 (1.1)
0.15 (1)
0.098 (0.64)
0.083 (0.47)
0.068 (0.4)
6
50
1.5 (9.5)
0.93 (6)
0.59 (3.8)
0.43 (2.6)
0.32 (2.1)
0.22 (1.5)
0.18 (1.1)
0.15 (0.98)
5
60
1.6 (11)
1 (6.9)
0.66 (4.2)
0.46 (2.8)
0.35 (2.3)
0.24 (1.6)
0.2 (1.2)
0.17 (1.1)
2
150
6 (37)
3.2 (20)
1.8 (11)
1 (7.2)
0.63 (4.5)
0.43 (3)
0.33 (2.2)
0.27 (1.8)
1
300
44 (320)
23 (160)
12 (83)
5.7 (41)
3 (20)
1.6 (9.9)
0.84 (6.4)
0.56 (3.5)
Table 26. Effective Resolution (Peak-to-Peak Resolution) vs. Gain and Output Data Rate (Bits), Mid Power Mode (Average by 16)
Filter
Word
(Dec.)
Output Data Rate
(SPS)
Gain = 1
Gain = 2
Gain = 4
Gain = 8
Gain = 16
Gain = 32
Gain = 64
Gain = 128
96
3.125
23.6 (21)
23.3 (20.7)
22.9 (20.3)
22.5 (19.8)
21.9 (19.3)
21.4 (18.9)
20.7 (18.1)
19.9 (17.4)
30
10
22.7 (20.2)
22.5 (19.9)
22.2 (19.6)
21.7 (19.1)
21 (18.3)
20.6 (17.9)
19.8 (17.3)
19.1 (16.6)
6
50
21.7 (19)
21.4 (18.7)
21 (18.3)
20.5 (17.9)
19.9 (17.2)
19.4 (16.7)
18.7 (16.1)
18 (15.3)
5
60
21.5 (18.8)
21.2 (18.5)
20.9 (18.2)
20.4 (17.8)
19.8 (17.1)
19.3 (16.6)
18.6 (16)
17.8 (15.1)
2
150
19.7 (17)
19.6 (16.9)
19.4 (16.8)
19.2 (16.4)
18.9 (16.1)
18.5 (15.7)
17.8 (15.1)
17.1 (14.4)
1
300
16.8 (13.9)
16.7 (13.9)
16.7 (13.9)
16.7 (13.9)
16.7 (13.9)
16.6 (13.9)
16.5 (13.6)
16.1 (13.4)



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