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AD7771 数据表(PDF) 21 Page - Analog Devices

部件名 AD7771
功能描述  8-Channel, 24-Bit, Simultaneous Sampling ADC
PDF  99 Pages
Scroll/Zoom Zoom In 100%  Zoom Out
制造商  AD [Analog Devices]
网页  http://www.analog.com
标志 AD - Analog Devices

AD7771 数据表(HTML) 21 Page - Analog Devices

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AD7771
Data Sheet
Rev. 0 | Page 20 of 98
1.6
0
CLOCK FREQUENCY (Hz)
1.0
2.0
3.0
4.0
5.0
6.0
7.0
8.0
9.0
1.0
1.1
1.2
1.3
1.4
1.5
GAIN = 1
GAIN = 2
GAIN = 4
GAIN = 8
VREF = 2.5V
VCM = (AVDD1x + AVSSx) ÷ 2
TA = 25°C
DECIMATION = 256
Figure 26. Noise vs. Clock Frequency, High Resolution Mode
160
0
140
ODR (SPS)
20
40
60
80
100
120
1000
4000
8000
16000
GAIN = 1
GAIN = 2
GAIN = 4
GAIN = 8
Figure 27. Noise vs. ODR, High Resolution Mode, Sinc3 Filter Enabled
180
0
40
80
120
160
20
60
100
140
ODR (SPS)
8000
128000
GAIN = 1
GAIN = 2
GAIN = 4
GAIN = 8
32000
64000
Figure 28. Noise vs. ODR, High Resolution Mode, Sinc5 Filter Enabled
1.80
0
CLOCK FREQUENCY (Hz)
2.00
4.00
6.00
8.00
1.00
1.20
1.40
1.60
GAIN = 1
GAIN = 2
GAIN = 4
GAIN = 8
VREF = 2.5V
VCM = (AVDD1x + AVSSx) ÷ 2
TA = 25°C
DECIMATION = 256
Figure 29. Noise vs. Clock Frequency, Low Power Mode
700
0
ODR (SPS)
500
8000
GAIN = 1
GAIN = 2
GAIN = 4
GAIN = 8
2000
4000
100
200
300
400
500
600
Figure 30. Noise vs. ODR, Low Power Mode, Sinc3 Filter Enabled
400
0
50
100
150
200
250
300
350
ODR (SPS)
1000
32000
GAIN = 1
GAIN = 2
GAIN = 4
GAIN = 8
8000
16000
Figure 31. Noise vs. ODR, Low Power Mode, Sinc5 Filter Enabled



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