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ADFS7124-4BBCPZ Datasheet(PDF) 33 Page - Analog Devices

Part # ADFS7124-4BBCPZ
Description  4-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

ADFS7124-4BBCPZ Datasheet(HTML) 33 Page - Analog Devices

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Data Sheet
ADFS7124-4
RMS NOISE AND RESOLUTION
analog.com
Rev. 0 | 33 of 93
Table 28. Effective Resolution (Peak-to-Peak Resolution) vs. Gain and Output Data Rate, Low Power Mode (Continued)
Filter
Word
(Dec.)
Output
Data Rate
(SPS)
Output Data
Rate (Zero
Latency Mode)
(SPS)
Gain = 1
Gain = 2
Gain = 4
Gain = 8
Gain = 16
Gain = 32
Gain = 64
Gain = 128
30
80
20
21.4 (18.7)
21 (18.3)
20.6 (17.9)
20.1 (17.4)
19.6 (16.8)
19 (16.2)
18.3 (15.6)
17.6 (14.9)
15
160
40
20.9 (18.2)
20.4 (17.8)
20.1 (17.4)
19.5 (16.8)
19.1 (16.3)
18.5 (15.7)
17.8 (15.2)
17.1 (14.5)
8
300
75
20.4 (17.7)
19.9 (17.2)
19.6 (16.8)
19 (16.3)
18.5 (15.8)
18 (15.3)
17.3 (14.7)
16.6 (13.9)
4
600
150
19.9 (17.1)
19.3 (16.7)
18.9 (16.2)
18.2 (15.6)
17.8 (15.2)
17.3 (14.7)
16.7 (13.9)
16 (13.3)
2
1200
300
19 (16.4)
18.3 (15.7)
17.7 (15.1)
17 (14.3)
16.7 (14)
16.3 (13.8)
15.7 (13.1)
14.9 (12.3)
1
2400
600
16.1 (13.4)
16 (13.4)
15.8 (13.3)
15.3 (12.5)
15.2 (12.5)
15 (12.4)
14.5 (11.9)
13.9 (11)
Sinc3
Table 29. RMS Noise (Peak-to-Peak Noise) vs. Gain and Output Data Rate (µV), Low Power Mode
Filter
Word
(Dec.)
Output
Data
Rate
(SPS)
Output
Data Rate
(Zero
Latency
Mode)
(SPS)
f3dB
(Hz)
Gain = 1
Gain = 2
Gain = 4
Gain = 8
Gain = 16
Gain = 32
Gain = 64
Gain = 128
2047
1.17
0.39
0.32
0.26 (1.5)
0.17 (0.9)
0.099 (0.6)
0.072 (0.36)
0.055 (0.27)
0.039 (0.21)
0.032 (0.16)
0.026 (0.13)
480
5
1.67
1.36
0.51 (3.1)
0.31 (1.9)
0.2 (1.3)
0.15 (0.86)
0.11 (0.65)
0.078 (0.45)
0.063 (0.37)
0.05 (0.28)
240
10
3.33
2.72
0.75 (4.5)
0.45 (2.8)
0.29 (2)
0.21 (1.3)
0.16 (0.9)
0.11 (0.65)
0.085 (0.51)
0.071 (0.39)
160
15
5
4.08
0.88 (5.5)
0.55 (3.3)
0.3 (2.4)
0.26 (1.6)
0.19 (1.2)
0.14 (0.79)
0.1 (0.62)
0.089 (0.53)
80
30
10
8.16
1.3 (7.8)
0.77 (4.9)
0.47 (3.3)
0.36 (2.2)
0.27 (1.7)
0.19 (1.2)
0.15 (0.94)
0.12 (0.72)
48
50
16.67
13.6
1.7 (9.9)
1 (6.4)
0.63 (4.6)
0.47 (3.1)
0.36 (2.2)
0.26 (1.7)
0.2 ( 1.3)
0.16 (1)
40
60
20
16.32
1.8 (12)
1.1 (7)
0.71 (5)
0.52 (3.4)
0.39 (2.5)
0.27 (1.8)
0.21 (1.4)
0.18 (1.3)
20
120
40
32.64
2.5 (17)
1.6 (10)
0.9 (6.1)7
0.73 (5)
0.55 (3.7)
0.41 (2.5)
0.3 (1.9)
0.26 (1.6)
10
240
80
65.28
3.5 (25)
2.4 (16)
1.5 (9.9)
1.1 (7.6)
0.8 (5.3)
0.56 (3.5)
0.45 (2.8)
0.37 (2.3)
5
480
160
130.6
6.8 (48)
4.3 (32)
2.6 (19)
2 (15)
1.3 (9)
0.9 (6.5)
0.7 (4.5)
0.55 (3.3)
3
800
266.67
217.6
25 (180)
13 (98)
7.4 (53)
4.5 (34)
2.7 (18)
1.6 (11)
1.1 (7.7)
0.91 (6)
2
1200
400
326.4
110 (740)
55 (390)
28 (180)
15 (100)
7.6 (57)
4 (32)
2.4 (16)
1.6 (12)
1
2400
800
652.8
870 (5600)
430 (2900)
220 (1400)
110 (670)
56 (370)
28 (180)
14 (100)
7.6 (52)
Table 30. Effective Resolution (Peak-to-Peak Resolution) vs. Gain and Output Data Rate, Low Power Mode
Filter
Word
(Dec.)
Output Data
Rate (SPS)
Output Data
Rate (Zero
Latency
Mode) (SPS)
Gain = 1
Gain = 2
Gain = 4
Gain = 8
Gain = 16
Gain = 32
Gain = 64
Gain = 128
2047
1.17
0.39
24 (21.7)
23.8 (21.4)
23.6 (21)
23 (20.7)
22.4 (20.1)
21.9 (19.5)
21.2 (18.9)
20.5 (18.2)
480
5
1.67
23.2 (20.6)
22.9 (20.3)
22.6 (19.9)
22 (19.5)
21.4 (18.9)
20.9 (18.4)
20.2 (17.7)
19.6 (17.1)
240
10
3.33
22.7 (20.1)
22.4 (19.8)
22.1 (19.3)
21.5 (18.9)
20.9 (18.4)
20.4 (17.9)
19.8 (17.2)
19.1 (16.6)
160
15
5
22.4 (19.8)
22.1 (19.5)
21.8 (19)
21.2 (18.6)
20.6 (18)
20.1 (17.6)
19.5 (16.9)
18.8 (16.2)
80
30
10
21.9 (19.3)
21.6 (19)
21.3 (18.5)
20.7 (18.1)
20.1 (17.5)
19.6 (17)
19 (16.3)
18.3 (15.7)
48
50
16.67
21.5 (18.9)
21.2 (18.6)
20.9 (18.1)
20.3 (17.6)
19.7 (17.1)
19.2 (16.5)
18.6 (15.9)
17.9 (15.2)
40
60
20
21.4 (18.7)
21.1 (18.4)
20.8 (17.9)
20.2 (17.5)
19.6 (16.9)
19.1 (16.4)
18.5 (15.8)
17.7 (15.1)
20
120
40
20.9 (18.2)
20.6 (17.9)
20.3 (17.4)
19.7 (16.9)
19.1 (16.4)
18.6 (15.9)
18 (15.3)
17.2 (14.6)
10
120
80
20.4 (17.6)
20 (17.2)
19.7 (16.9)
19.1 (16.3)
18.6 (15.9)
18.1 (15.4)
17.4 (14.8)
16.7 (14.1)
5
480
160
19.5 (16.7)
19.2 (16.3)
18.8 (16)
18.2 (15.4)
17.9 (15.1)
17.4 (14.6)
16.8 (14.1)
16.1 (13.5)
3
800
266.67
17.6 (14.8)
17.5 (14.6)
17.4 (14.5)
17.1 (14.2)
16.8 (14.1)
16.6 (13.8)
16.1 (13.3)
15.4 (12.7)
2
1200
400
15.5 (12.7)
15.5 (12.7)
15.4 (12.7)
15.4 (12.6)
15.3 (12.4)
15.2 (12.3)
15 (12.2)
14.5 (11.6)



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