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AD4115 Datasheet(PDF) 20 Page - Analog Devices

Part # AD4115
Description  Single-Supply, Multichannel, 125 kSPS, 24-Bit, Sigma-Delta ADC with 짹10 V Inputs
PDF  51 Pages
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Manufacturer  AD [Analog Devices]
Direct Link  http://www.analog.com
Logo AD - Analog Devices

AD4115 Datasheet(HTML) 20 Page - Analog Devices

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AD4115
Data Sheet
Rev. 0 | Page 20 of 51
NOISE PERFORMANCE AND RESOLUTION
Table 16 to Table 17 show the rms noise, peak-to-peak noise,
effective resolution, and noise free (peak-to-peak) resolution of the
device for various ODRs. These values are typical and are
measured with an external 2.5 V reference and with the ADC
continuously converting on multiple channels. The values in
Table 16 and Table 17 are generated for the ±10 V voltage input
range, with a differential input voltage of 0 V. Note that the
peak-to-peak resolution is calculated based on the peak-to-peak
noise. The peak-to-peak resolution represents the resolution for
which there is no code flicker.
Table 16. ±10 V Voltage Input RMS Noise Resolution vs. ODR Using a Sinc5 + Sinc1 Filter
Default Output Data Rate
(SPS), SING_CYC = 0 and
Single Channel Enabled
Output Data Rate (SPS per
Channel), SING_CYC = 1 or
Multiple Channels Enabled
Settling
Time1
Notch
Frequency
(Hz)
Noise
(μV rms)2
Effective
Resolution
(Bits)
Noise
(μV p-p)
Peak-to-Peak
Resolution
(Bits)
125,000
24,845
40.25 μs
125,000
140.36
17.12
926.38
14.40
62,500
20,725
48.25 μs
62,500
124.42
17.29
821.17
14.57
31,250
15,564
64.25 μs
31,250
99.14
17.62
654.32
14.90
25,000
13,841
72.25 μs
25,000
89.57
17.77
591.16
15.05
15,625
10,390
96.25 μs
15,625
72.94
18.06
481.40
15.34
10,390
10,390
96.25 μs
15,625
71.01
18.10
468.67
15.38
4994
4,994
200.25 μs
5952.4
45.67
18.74
301.42
16.02
2498
2,499
400.25 μs
2717.4
32.42
19.23
213.97
16.51
1000
1,000
1 ms
1033.1
20.24
19.91
133.58
17.19
500
500
2 ms
508.1
13.88
20.46
91.61
17.74
395.5
395.26
2.53 ms
400.6
12.61
20.60
83.23
17.87
200
200
5 ms
201.3
9.702
20.98
64.03
18.25
100
100
10 ms
100.3
7.36
21.37
48.58
18.65
59.87
59.89
16.7 ms
59.98
5.38
21.83
35.51
19.10
49.92
49.92
20.03 ms
50
5.52
21.79
36.43
19.07
20
20.
50 ms
20.01
4.52
22.08
29.83
19.35
16.7
16.66
60.03 ms
16.67
4.07
22.23
26.86
19.51
10
10
100 ms
10
3.15
22.6
16.1
20.2
5
5
200 ms
5
2.92
22.7
12.1
20.7
2.5
2.5
400 ms
2.5
2.49
22.7
12
20.7
1 The settling time is rounded to the nearest microsecond, which is reflected in the output data rate and channel switching rate. Channel switching rate = 1 ÷ settling time.
2 The noise values are based on 1000 samples for data rates ≥ 395.5 SPS per channel and based on 100 samples for data rates ≤ 200 SPS per channel.
Table 17. ±10 V Voltage Input RMS Noise Resolution vs. ODR Using a Sinc3 Filter
Default Output Data
Rate (SPS), SING_CYC = 0
and Single Channel
Enabled
Output Data Rate (SPS per
Channel), SING_CYC = 1 or
Multiple Channels Enabled
Settling
Time1
Notch
Frequency
(Hz)
Noise
(μV rms)2
Effective
Resolution
(Bits)
Noise
(μV p-p)
Peak-to-Peak
Resolution
(Bits)
125,000
41,152
24.3 μs
125,000
1008
14.28
6652
11.55
62,500
20,704
48.3 μs
62,500
176.41
16.79
1164
14.07
31,250
10,384
96.3 μs
31,250
82.49
17.89
544.43
15.16
25,000
8,313
120.3 μs
25,000
73.71
18.05
486.49
15.33
15,625
5,200
192.3 μs
15,625
57.99
18.40
382.73
15.67
10,416.7
3,469
288.3 μs
10,417
46.93
18.70
309.74
15.98
5000
1,666
600.3 μs
5000
31.45
19.28
207.57
16.56
2500
833.33
1.2 ms
2500
22.83
19.74
150.68
17.02
1000
333.33
3 ms
1000
14.35
20.41
94.71
17.69
500
166.67
6 ms
500.0
10.82
20.82
71.41
18.10
400.6
133.51
7.49 ms
400.6
9.66
20.98
63.76
18.26
200
66.67
15 ms
200.0
7.30
21.39
48.18
18.66
100
33.33
30 ms
100.0
5.81
21.71
38.35
18.99
59.98
19.99
50.02 ms
59.98
4.70
22.02
31.02
19.30
50
16.67
60 ms
50.00
4.48
22.09
29.57
19.37



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