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AD7771 Datasheet(PDF) 49 Page - Analog Devices

Part # AD7771
Description  8-Channel, 24-Bit, Simultaneous Sampling ADC
PDF  99 Pages
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Manufacturer  AD [Analog Devices]
Direct Link  http://www.analog.com
Logo AD - Analog Devices

AD7771 Datasheet(HTML) 49 Page - Analog Devices

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AD7771
Data Sheet
Rev. 0 | Page 48 of 98
LOW POWER MODE
Table 26. DR and RTI for Low Power Mode
Sinc
Filter
Decimation
Rate
Output Data
Rate (SPS)
f−3dB
(Hz)
Gain = 1
Gain = 2
Gain = 4
Gain = 8
DR
(dB)
RTI
(µV rms)
DR
(dB)
RTI
(µV rms)
DR
(dB)
RTI
(µV rms)
DR
(dB)
RTI
(µV rms)
Sinc5
16
32,000
6833.54
94.3
34.2
90.9
25.04
86.5
20.5
81.3
19.43
32
16,000
3548.74
100.9
15.7
97.8
11.22
93.6
9.0
87.9
8.39
64
8,000
1906.34
106.7
83.3
104.6
5.18
100.6
4.03
96.1
3.46
512
1,000
469.24
117.1
25.2
116.8
1.29
114.4
8.41
110.7
0.67
Sinc3
64
8,000
2756.43
95.5
29.86
95.0
15.26
93.7
8.9
90.8
6.11
128
4,000
1695.23
105.4
9.47
105.1
4.95
102.7
3.21
98.7
2.51
256
2,000
1164.63
111.7
4.62
111.2
2.41
108.9
1.57
104.8
1.27
1024
500
766.68
118.6
2.1
118.2
1.07
116.2
0.7
112.5
0.54
Table 27. ENOB and ER for Low Power Mode
Sinc
Filter
Decimation
Rate
Output Data
Rate (SPS)
f−3dB
(Hz)
Gain = 1
Gain = 2
Gain = 4
Gain = 8
ENOB
(Bits)
ER
(Bits)
ENOB
(Bits)
ER
(Bits)
ENOB
(Bits)
ER
(Bits)
ENOB
(Bits)
ER
(Bits
Sinc5
16
32,000
6833.54
15.4
17.2
14.8
17.6
14.1
17.9
13.2
18.0
32
16,000
3548.74
16.5
18.3
16.0
18.8
15.3
19.1
14.3
19.2
64
8000
1906.34
17.4
15.9
17.1
19.9
16.4
20.2
15.7
20.5
512
1000
469.24
19.2
17.6
19.1
21.9
18.7
19.2
18.1
22.8
Sinc3
64
8,000
2756.43
15.6
17.4
15.5
18.3
15.3
19.1
14.8
19.6
128
4,000
1695.23
17.2
19.0
17.2
19.9
16.8
20.6
16.1
20.9
256
2,000
1164.63
18.3
20.0
18.2
21.0
17.8
21.6
17.1
21.9
1024
500
766.68
19.4
21.2
19.3
22.2
19.0
22.8
18.4
23.1



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