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ADFS7124-4BBCPZ Datasheet(PDF) 27 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) 27 Page - Analog Devices

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Data Sheet
ADFS7124-4
RMS NOISE AND RESOLUTION
analog.com
Rev. 0 | 27 of 93
Table 8. Effective Resolution (Peak-to-Peak Resolution) vs. Gain and Output Data Rate (Bits), Full 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
2
9600
2400
19.1 (16)
18.5 (15.3)
18 (15.1)
17.2 (14.5)
16.9 (13.9)
16.5 (13.5)
15.9 (12.7)
15 (12)
1
19,200
4800
16.1 (13.3)
16 (13.2)
15.9 (13)
15.5 (12.7)
15.4 (12.4)
15.1 (12.2)
14.6 (11.5)
13.8 (10.8)
Sinc3
Table 9. RMS Noise (Peak-to-Peak Noise) vs. Gain and Output Data Rate (µV), Full 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
9.4
3.13
2.56
0.23 (1.5)
0.15 (0.89)
0.096 (0.58)
0.07 (0.38)
0.046 (0.25)
0.033 (0.16)
0.023 (0.11)
0.017 (0.09)
1920
10
3.33
2.72
0.24 (1.5)
0.15 (0.89)
0.096 (0.6)
0.07 (0.4)
0.05 (0.26)
0.034 (0.17)
0.023 (0.12)
0.018 (0.09)
1280
15
5
5.44
0.31 (1.8)
0.18 (1.2)
0.12 (0.82)
0.09 (0.55)
0.059 (0.35)
0.041 (0.24)
0.033 (0.18)
0.027 (0.14)
640
30
10
8.16
0.4 (2.6)
0.26 (1.6)
0.17 (1.2)
0.11 (0.82)
0.088 (0.52)
0.055 (0.36)
0.048 (0.27)
0.039 (0.22)
384
50
16.67
13.6
0.53 (3.3)
0.3 (2.2)
0.2 (1.6)
0.17 (1.1)
0.1 (0.75)
0.075 (0.51)
0.062 (0.39)
0.056 (0.33)
320
60
20
16.32
0.55 (3.6)
0.37 (2.4)
0.24 (1.8)
0.19 (1.3)
0.12 (0.8)
0.084 (0.54)
0.068 (0.44)
0.06 (0.37)
160
120
40
32.64
0.78 (5.1)
0.53 (3.4)
0.35 (2.3)
0.26 (1.8)
0.17 (1.1)
0.12 (0.85)
0.1 (0.66)
0.097 (0.55)
80
240
80
65.28
1.1 (7)
0.73 (4.9)
0.49 (3.2)
0.37 (2.6)
0.25 (1.6)
0.17 (1.2)
0.14 (1)
0.12 (0.78)
40
480
160
130.56
1.5 (11)
1.1 (6.8)
0.67 (4.5)
0.52 (3.7)
0.34 (2.2)
0.25 (1.7)
0.19 (1.4)
0.17 (1.2)
20
960
320
261.12
2.3 (16)
1.5 (9.8)
0.99 (6.6)
0.75 (5.1)
0.53 (3.5)
0.35 (2.4)
0.28 (2.1)
0.25 (1.8)
10
1920
640
522.24
3.2 (26)
2.2 (16)
1.5 (11)
1.1 (8.5)
0.73 (5.5)
0.49 (3.9)
0.4 (3.2)
0.35 (2.7)
6
3200
1066.67
870.4
4.9 (38)
3.2 (24)
2.1 (15)
1.6 (12)
1 (7.7)
0.68 (5.6)
0.56 (4.2)
0.48 (3.6)
3
6400
2133.33
1740.8
25 (170)
13 (89)
7.1 (54)
4.3 (35)
2.4 (18)
1.5 (11)
1.1 (8.4)
0.9 (6.7)
2
9600
3200
2611.2
110 (820)
54 (390)
28 (210)
14 (110)
7.4 (57)
3.9 (27)
2.3 (17)
1.7 (13)
1
19,200
6400
5222.4
890 (6500)
430 (3000)
220 (1500)
110 (790)
55 (390)
28 (190)
14 (100)
7.6 (56)
Table 10. Effective Resolution (Peak-to-Peak Resolution) vs. Gain and Output Data Rate, Full 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
9.4
3.13
24 (21.7)
24 (21.4)
23.6 (21)
23.1 (20.6)
22.7 (20.3)
22.2 (19.9)
21.7 (19.3)
21 (18.7)
1920
10
3.33
24 (21.7)
24 (21.4)
23.6 (21)
23.1 (20.6)
22.6 (20.2)
22.2 (19.8)
21.7 (19.3)
21 (18.7)
1280
15
5
24 (21.4)
23.7 (21)
23.2 (20.5)
22.7 (20.1)
22.3 (19.8)
21.9 (19.3)
21.2 (18.7)
20.5 (18.1)
640
30
10
23.6 (20.9)
23.2 (20.5)
22.8 (20)
22.2 (19.5)
21.8 (19.2)
21.4 (18.7)
20.6 (18.1)
19.9 (17.4)
384
50
16.67
23.2 (20.5)
22.8 (20.1)
22.4 (19.6)
21.8 (19.1)
21.4 (18.7)
21 (18.2)
20.3 (17.6)
19.4 (16.9)
320
60
20
23.1 (20.4)
22.7 (20)
22.3 (19.4)
21.7 (18.9)
21.3 (18.6)
20.8 (18.1)
20.1 (17.4)
19.3 (16.7)
160
120
40
22.6 (19.9)
22.2 (19.5)
21.8 (19)
21.2 (18.4)
20.8 (18.1)
20.3 (17.5)
19.6 (16.9)
18.7 (16.1)
80
240
80
22.1 (19.4)
21.7 (19)
21.3 (18.6)
20.7 (17.9)
20.3 (17.6)
19.8 (17)
19.1 (16.3)
18.3 (15.6)
40
480
160
21.6 (18.8)
21.2 (18.5)
20.8 (18.1)
20.2 (17.4)
19.8 (17.1)
19.3 (16.5)
18.6 (15.8)
17.8 (15)
20
960
320
21.1 (18.3)
20.7 (18)
20.3 (17.5)
19.7 (16.9)
19.2 (16.4)
18.8 (16)
18.1 (15.2)
17.3 (14.4)
10
1920
640
20.6 (17.6)
20.1 (17.2)
19.7 (16.8)
19.1 (16.2)
18.7 (15.8)
18.3 (15.3)
17.6 (14.6)
16.8 (13.8)
6
3200
1066.67
19.9 (17)
19.6 (16.6)
19.2 (16.3)
18.6 (15.6)
18.2 (15.3)
17.8 (14.8)
17.1 (14.2)
16.3 (13.4)
3
6400
2133.33
17.6 (14.8)
17.6 (14.8)
17.4 (14.5)
17.2 (14.1)
17 (14.1)
16.7 (13.8)
16.3 (13.2)
15.4 (12.5)
2
9600
3200
15.5 (12.6)
15.5 (12.6)
15.4 (12.6)
15.4 (12.5)
15.4 (12.4)
15.3 (12.5)
15 (12.2)
14.5 (11.6)
1
19,200
6400
12.5 (9.7)
12.5 (9.7)
12.5 (9.7)
12.5 (9.6)
12.5 (9.6)
12.4 (9.6
12.4 (9.6)
12.3 (9.5)



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