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AD7921AUJZ-R2 数据表(PDF) 14 Page - Analog Devices

部件名 AD7921AUJZ-R2
功能描述  2-Channel, 2.35 V to 5.25 V 250 kSPS, 10-/12-Bit ADCs
PDF  28 Pages
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制造商  AD [Analog Devices]
网页  http://www.analog.com
标志 AD - Analog Devices

AD7921AUJZ-R2 数据表(HTML) 14 Page - Analog Devices

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AD7911/AD7921
Rev. A | Page 14 of 28
1.0
–1.0
–0.8
–0.6
–0.4
–0.2
0
0.2
0.4
0.6
0.8
0
4096
3584
3072
2560
2048
1536
1024
512
CODE
VDD = 2.7V
FSAMP = 250kSPS
TEMPERATURE = 25
°C
Figure 14. AD7921 INL Performance
1.0
–1.0
–0.8
–0.6
–0.4
–0.2
0
0.2
0.4
0.6
0.8
0
4096
3584
3072
2560
2048
1536
1024
512
CODE
VDD = 2.7V
FSAMP = 250kSPS
TEMPERATURE = 25
°C
Figure 15. AD7921 DNL Performance
–95
–85
–75
–65
–55
–35
–25
–45
10
100
1k
FREQUENCY (kHz)
RIN = 1kΩ
RIN = 500Ω
RIN = 100Ω
RIN = 50Ω
RIN = 10Ω
RIN = 0Ω
VDD = 3.6V
Figure 16. THD vs. Analog Input Frequency for Various Source Impedances
–74
–76
–78
–80
–82
–84
–86
–88
10
100
1k
FREQUENCY (kHz)
VDD = 2.35V
VDD = 3.6V
VDD = 5.25V
VDD = 4.75V
VDD = 2.7V
Figure 17. THD vs. Analog Input Frequency for Various Supply Voltages
180
160
0
20
40
60
80
100
120
140
2.0
5.5
5.0
4.5
4.0
3.5
3.0
2.5
SUPPLY VOLTAGE (V)
TEMPERATURE = +25
°C
TEMPERATURE = +85
°C
TEMPERATURE = –40
°C
Figure 18. Shutdown Current vs. Supply Voltage



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