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ADFS7124-8BBCPZ Datasheet(PDF) 29 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) 29 Page - Analog Devices

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Data Sheet
ADFS7124-8
RMS NOISE AND RESOLUTION
analog.com
Rev. 0 | 29 of 93
Table 11. RMS Noise (Peak-to-Peak Noise) vs. Gain and Output Data Rate (µV), Full Power Mode (Continued)
Output Data Rate (SPS)
Gain = 1
Gain = 2
Gain = 4
Gain = 8
Gain = 16
Gain = 32
Gain = 64
Gain = 128
25
0.57 (3.6)
0.37 (2.2)
0.25 (1.6)
0.18 (1.2)
0.12 (0.75)
0.082 (0.47)
0.062 (0.38)
0.055 (0.31)
27.27
0.6 (3.9)
0.38 (2.2)
0.26 (1.6)
0.19 (1.2)
0.13 (0.82)
0.084 (0.55)
0.072 (0.44)
0.063 (0.43)
Table 12. Effective Resolution (Peak-to-Peak Resolution) vs. Gain and Output Data Rate (Bits), Full Power Mode
Output Data Rate (SPS)
Gain = 1
Gain = 2
Gain = 4
Gain = 8
Gain = 16
Gain = 32
Gain = 64
Gain = 128
16.67
23.2 (20.5)
22.8 (20.2)
22.5 (19.9)
21.9 (19.3)
21.5 (18.9)
21 (18.5)
20.3 (17.8)
19.5 (17)
20
23.2 (20.5)
22.7 (20.2)
22.3 (19.9)
21.7 (19.2)
21.5 (18.9)
20.9 (18.4)
20.3 (17.8)
19.5 (17)
25
23.1 (20.4)
22.7 (20.1)
22.2 (19.6)
21.7 (19)
21.3 (18.7)
20.9 (18.3)
20.3 (17.7)
19.5 (17)
27.27
23 (20.3)
22.6 (20.1)
22.2 (19.5)
21.7 (19)
21.2 (18.5)
20.8 (18.1)
20.1 (17.4)
19.2 (16.5)
Fast Settling Filter (Sinc4 + Sinc1)
Table 13. RMS Noise (Peak-to-Peak Noise) vs. Gain and Output Data Rate (µV), Full 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
384
3.125
0.19 (1.2)
0.11 (0.75)
0.077 (0.52)
0.063 (0.34)
0.036 (0.21)
0.027 (0.17)
0.021 (0.11)
0.019 (0.098)
120
10
0.32 (2.1)
0.2 (1.3)
0.13 (0.97)
0.1 (0.63)
0.067 (0.46)
0.045 (0.28)
0.039 (0.23)
0.031 (0.2)
24
50
0.69 (4.6)
0.44 (3)
0.29 (2.1)
0.23 (1.6)
0.14 (0.99)
0.1 (0.72)
0.081 (0.54)
0.07 (0.49)
20
60
0.71 (5.1)
0.49 (3.1)
0.3 (2.2)
0.25 (1.7)
0.16 (1.1)
0.11 (0.78)
0.09 (0.6)
0.082 (0.57)
2
600
2.4 (18)
1.6 (10)
1.1 (8.3)
0.87 (5.5)
0.56 (3.5)
0.47 (2.9)
0.33 (2.1)
0.3 (2)
1
1200
4.8 (35)
3 (20)
1.9 (12)
1.4 (8.8)
0.89 (5.2)
0.57 (3.7)
0.49 (3)
0.44 (3)
Table 14. Effective Resolution (Peak-to-Peak Resolution) vs. Gain and Output Data Rate (Bits), Full 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
384
3.125
24 (22)
24 (21.7)
23.9 (21.2)
23.3 (20.8)
23 (20.5)
22.5 (19.8)
21.8 (19.5)
21 (18.6)
120
10
23.9 (21.2)
23.6 (20.8)
23.3 (20.3)
22.5 (19.9)
22.2 (19.4)
21.9 (19.1)
20.9 (18.4)
20.2 (17.6)
24
50
22.8 (20)
22.4 (19.7)
22.1 (19.2)
21.4 (18.6)
21.1 (18.3)
20.5 (17.7)
19.9 (17.1)
19.1 (16.3)
20
60
22.7 (19.9)
22.3 (19.6)
22 (19.1)
21.2 (18.5)
20.9 (18.1)
20.4 (17.6)
19.7 (17)
18.9 (16.1)
2
600
21 (18.1)
20.6 (17.9)
20.2 (17.2)
19.5 (16.8)
19.1 (16.4)
18.4 (15.7)
17.8 (15.2)
17 (14.3)
1
1200
20 (17.1)
19.7 (16.9)
19.3 (16.6)
18.8 (16.1)
18.4 (15.9)
18.1 (15.4)
17.3 (14.7)
16.5 (13.7)
Fast Settling Filter (Sinc3 + Sinc1)
Table 15. RMS Noise (Peak-to-Peak Noise) vs. Gain and Output Data Rate (µV), Full 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
384
3.125
0.22 (1.4)
0.13 (0.75)
0.081 (0.44)
0.048 (0.3)
0.039 (0.24)
0.026 (0.18)
0.025 (0.13)
0.019 (0.11)
120
10
0.31 (2.1)
0.21 (1.3)
0.13 (0.89)
0.1 (0.63)
0.068 (0.47)
0.047 (0.28)
0.036 (0.25)
0.033 (0.17)
24
50
0.7 (4.8)
0.46 (3.1)
0.29 (2.1)
0.22 (1.5)
0.14 (0.95)
0.098 (0.67)
0.079 (0.56)
0.071 (0.44)
20
60
0.77 (5.2)
0.5 (3.4)
0.31 (2.3)
0.24 (1.6)
0.17 (1)
0.11 (0.73)
0.09 (0.66)
0.077 (0.48)
2
600
6.1 (46)
3.2 (23)
1.8 (12)
1.1 (7.5)
0.65 (4.3)
0.4 (2.7)
0.31 (2.2)
0.27 (2)
1
1200
44 (320)
22 (160)
11 (80)
5.7 (40)
2.9 (22)
1.5 (11)
0.83 (6.2)
0.54 (4)
Table 16. Effective Resolution (Peak-to-Peak Resolution) vs. Gain and Output Data Rate (Bits), Full 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
384
3.125
24 (21.8)
24 (21.7)
23.9 (21.4)
23.6 (21)
22.9 (20.3)
22.5 (19.8)
21.6 (19.2)
21 (18.4)
120
10
24 (21.2)
23.5 (20.9)
23.2 (20.4)
22.6 (19.9)
22.1 (19.4)
21.7 (19.1)
21 (18.3)
20.2 (17.8)



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