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ADFS7124-4BBCPZ Datasheet(PDF) 30 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) 30 Page - Analog Devices

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Data Sheet
ADFS7124-4
RMS NOISE AND RESOLUTION
analog.com
Rev. 0 | 30 of 93
Table 18. Effective Resolution (Peak-to-Peak Resolution) vs. Gain and Output Data Rate (Bits), Mid 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
4
1200
300
19.8 (17.1)
19.4 (16.7)
19 (16.3)
18.3 (15.6)
17.9 (15.2)
17.5 (14.7)
16.8 (14)
16 (13.1)
2
2400
600
19 (16.1)
18.5 (15.5)
18 (15.1)
17.2 (14.2)
16.9 (14)
16.5 (13.6)
15.8 (12.9)
15 (12)
1
4800
1200
16.1 (13.3)
16 (13.2)
15.9 (12.9)
15.5 (12.6)
15.4 (12.5)
15.1 (12.2)
14.6 (11.7)
13.9 (10.9)
Sinc3
Table 19. RMS Noise (Peak-to-Peak Noise) vs. Gain and Output Data Rate (µV), Mid 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
2.34
0.78
0.64
0.25 (1.5)
0.17 (1)
0.087 (0.58) 0.065 (0.4)
0.049 (0.27)
0.034 (0.19)
0.03 (0.16)
0.022 (0.11)
960
5
1.67
1.36
0.35 (2.2)
0.23 (1.3)
0.14 (0.82)
0.1 (0.58)
0.074 (0.43)
0.053 (0.31)
0.041 (0.22)
0.034 (0.17)
480
10
3.33
2.72
0.5 (3.1)
0.31 (1.9)
0.19 (1.3)
0.14 (0.89)
0.1 (0.63)
0.075 (0.44)
0.6 (0.35)
0.049 (0.28)
320
15
5
4.08
0.6 (3.8)
0.38 (2.4)
0.24 (1.6)
0.17 (1.1)
0.13 (0.8)
0.089 (0.54)
0.076 (0.46)
0.062 (0.35)
160
30
10
8.16
0.83 (5.6)
0.54 (3.3)
0.34 (2.2)
0.24 (1.6)
0.18 (1.1)
0.13 (0.77)
0.1 (0.65)
0.088 (0.53)
96
50
16.67
13.6
1.1 (7.5)
0.72 (4.4)
0.44 (2.9)
0.31 (2)
0.24 (1.5)
0.17 (1)
0.14 (0.82)
0.11 (0.7)
80
60
20
16.32
1.2 (7.7)
0.8 (4.8)
0.48 (3.1)
0.35 (2.2)
0.25 (1.6)
0.18 (1.1)
0.15 (0.94)
0.12 (0.77)
40
120
40
32.64
1.7 (11)
1.1 (7)
0.7 (4.6)
0.47 (3.2)
0.36 (2.2)
0.26 (1.7)
0.21 (1.5)
0.18 (1.1)
20
240
80
65.28
2.5 (16)
1.6 (9.7)
0.94 (6.2)
0.7 (5)
0.53 (3.2)
0.37 (2.3)
0.31 (2.1)
0.26 (1.8)
10
480
160
130.6
3.5 (24)
2.2 (15)
1.4 (9.3)
1 (7)
0.78 (5.3)
0.56 (3.9)
0.46 (3.1)
0.38 (2.5)
5
960
320
261.1
6.7 (53)
4.1 (34)
2.5 (19)
1.8 (14)
1.2 (8.7)
0.84 (6.4)
0.67 (5)
0.57 (3.9)
3
1600
533.33
435.2
25 (170)
13 (90)
7.1 (53)
4.2 (30)
2.4 (18)
1.5 (11)
1.1 (7.8)
0.89 (6.8)
2
2400
800
652.8
110 (740)
54 (360)
27 (200)
14 (110)
7.4 (51)
3.9 (29)
2.3 (16)
1.6 (12)
1
4800
1600
1306
880 (5800)
430 (3100)
220 (1500)
110 (760)
55 (400)
27 (180)
14 (110)
7.5 (56)
Table 20. Effective Resolution (Peak-to-Peak Resolution) vs. Gain and Output Data Rate (Bits), Mid 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
2.34
0.78
24 (21.7)
23.8 (21.2)
23.6 (21)
23.2 (20.6)
22.6 (20.1)
22.1 (19.6)
21.3 (18.9)
20.7 (18.4)
960
5
1.67
23.8 (21.1)
23.4 (20.8)
23.1 (20.5)
22.6 (20)
22 (19.5)
21.5 19)
20.8 (18.4)
20.1 (17.8)
480
10
3.33
23.3 (20.6)
22.9 (20.3)
22.6 (19.9)
22.1 (19.4)
21.5 (18.9)
21 (18.4)
20.3 (17.8)
19.6 (17.1)
320
15
5
23 (20.3)
22.6 (20)
22.3 (19.6)
21.8 (19.1)
21.2 (18.6)
20.7 (18.1)
20 (17.4)
19.3 (16.8)
160
30
10
22.5 (19.8)
22.1 (19.5)
21.8 (19.1)
21.3 (18.6)
20.7 (18.1)
20.2 (17.6)
19.5 (16.9)
18.8 (16.2)
96
50
16.67
22.1 (19.4)
21.7 (19.1)
21.4 (18.7)
20.9 (18.2)
20.3 (17.7)
19.8 (17.2)
19.1 (16.5)
18.4 (15.8)
80
60
20
22 (19.3)
21.6 (19)
21.3 (18.6)
20.8 (18.1)
20.2 (17.6)
19.7 (17.1)
19.1 (16.3)
18.3 (15.6)
40
120
40
21.5 (18.8)
21.1 (18.5)
20.8 (18.1)
20.3 (17.6)
19.7 (17.1)
19.2 (16.5)
18.5 (15.7)
17.7 (15.1)
20
240
80
21 (18.3)
20.6 (18)
20.3 (17.6)
19.8 (17)
19.2 (16.6)
18.7 (16)
18 (15.2)
17.2 (14.4)
10
480
160
20.4 (17.7)
20.1 (17.3)
19.8 (17)
19.2 (16.4)
18.6 (15.9)
18.1 (15.3)
17.4 (14.6)
16.7 (13.9)
5
960
320
19.5 (16.5)
19.2 (16.2)
19 (16)
18.4 (15.4)
18 (15.1)
17.5 (14.6)
16.8 (13.9)
16.1 (13.3)
3
1600
533.33
17.6 (14.8)
17.5 (14.8)
17.4 (14.5)
17.2 (14.3)
17 (14.1)
16.7 (13.8)
16.1 (13.3)
15.4 (12.6)
2
2400
800
15.5 (12.7)
15.5 (12.7)
15.5 (12.6)
15.4 (12.6)
15.4 (12.6)
15.3 (12.4)
15 (12.3)
14.6 (11.7)
1
4800
1600
12.5 (9.7)
12.5 (9.7)
12.5 (9.7)
12.5 (9.7)
12.5 (9.6)
12.5 (9.6)
12.4 (9.5)
12.4 (9.4)



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