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AD7468BRT-R 数据表(PDF) 14 Page - Analog Devices

部件名 AD7468BRT-R
功能描述  1.6 V, Micropower 12-/10-/8-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

AD7468BRT-R 数据表(HTML) 14 Page - Analog Devices

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AD7466/AD7467/AD7468
Rev. C | Page 14 of 28
5
–5
–45
–35
–25
–15
–55
–65
–75
–85
–95
0
5
10
15
20
25
30
35
40
45
50
FREQUENCY (kHz)
8192 POINT FFT
VDD = 1.8V
fSAMPLE = 100kSPS
fIN = 30kHz
SINAD = 49.83dB
THD = –79.37dB
SFDR = –70.46dB
Figure 8. AD7468 Dynamic Performance at 100 kSPS
–65
–72
–71
–70
–69
–68
–67
–66
–73
10
100
INPUT FREQUENCY (kHz)
VDD = 3.6V
VDD = 3V
VDD = 2.7V
TEMP = 25
°C
VDD = 1.8V VDD = 1.6V VDD = 2.2V
Figure 9. AD7466 SINAD vs. Analog Input Frequency
at 100 kSPS for Various Supply Voltages
–68.0
–72.5
–72.0
–71.5
–71.0
–70.5
–70.0
–69.0
–68.5
–69.5
–73.0
10
100
INPUT FREQUENCY (kHz)
VDD = 3.6V
VDD = 3V
VDD = 2.7V
TEMP = 25
°C
VDD = 1.8V
VDD = 1.6V
VDD = 2.2V
Figure 10. AD7466 SNR vs. Analog Input Frequency
at 100 kSPS for Various Supply Voltages
–65
–83
–81
–79
–77
–75
–73
–69
–67
–71
–85
10
100
INPUT FREQUENCY (kHz)
VDD = 3.6V
VDD = 3V
VDD = 2.7V
TEMP = 25
°C
VDD = 1.8V
VDD = 1.6V
VDD = 2.2V
Figure 11. AD7466 THD vs. Analog Input Frequency
at 100 kSPS for Various Supply Voltages
–76
–83
–82
–81
–80
–79
–78
–77
–84
10
100
INPUT FREQUENCY (kHz)
RIN = 510Ω
RIN = 10Ω
TEMP = 25
°C
VDD = 2.7V
RIN = 100Ω
RIN = 0Ω
RIN = 1kΩ
Figure 12. AD7466 THD vs. Analog Input Frequency
for Various Source Impedances
1.0
–0.8
–0.6
–0.4
–0.2
0
0.2
0.4
0.6
0.8
–1.0
0
512
1024
1536
2048
2560
3072
3584
4096
CODE
VDD = 1.8V
TEMP = 25
°C
fIN = 50Hz
fSAMPLE = 100kSPS
Figure 13. AD7466 INL Performance



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