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AD7944BCPZ Datasheet(PDF) 11 Page - Analog Devices

Part # AD7944BCPZ
Description  15.5 mW ADC in LFCSP
PDF  29 Pages
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Manufacturer  AD [Analog Devices]
Direct Link  http://www.analog.com
Logo AD - Analog Devices

AD7944BCPZ Datasheet(HTML) 11 Page - Analog Devices

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AD7944
Data Sheet
Rev. C | Page 10 of 28
Figure 11. FFT Plot (External Reference)
Figure 12. SNR, SINAD, and ENOB vs. Reference Voltage
Figure 13. SINAD vs. Frequency
Figure 14. FFT Plot (Internal Reference)
Figure 15. THD vs. Reference Voltage
Figure 16. THD vs. Frequency
0
250
500
750
1000
1250
–180
–160
–140
–120
–100
–80
–60
–40
–20
0
FREQUENCY (kHz)
fS = 2.5MSPS
fIN = 20kHz
SNR = 84.65dB
THD = –100dB
SINAD = 84.5dB
12.0
12.5
13.0
13.5
14.0
14.5
15.0
78
79
80
81
82
83
84
2.5
3.0
3.5
4.0
4.5
5.0
REFERENCE VOLTAGE (V)
SINAD
ENOB
SNR
80.0
80.5
81.0
81.5
82.0
82.5
83.0
83.5
84.0
84.5
85.0
1
10
100
1000
FREQUENCY (kHz)
0
250
500
750
1000
1250
–180
–160
–140
–120
–100
–80
–60
–40
–20
0
FREQUENCY (kHz)
fS = 2.5MSPS
fIN = 20kHz
SNR = 84dB
THD = –102dB
SINAD = 84dB
–105
–104
–103
–102
–101
–100
2.50 2.75 3.00 3.25 3.50 3.75 4.00 4.25 4.50 4.75 5.00
REFERENCE VOLTAGE (V)
–110
–105
–100
–95
–90
–85
–80
1
10
100
1000
FREQUENCY (kHz)



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