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AD9648 View Datasheet(PDF) - Analog Devices

Part NameDescriptionManufacturer
AD9648 14-Bit, 125 MSPS/105 MSPS, 1.8 V Dual Analog-to-Digital Converter ADI
Analog Devices ADI
AD9648 Datasheet PDF : 44 Pages
First Prev 11 12 13 14 15 16 17 18 19 20 Next Last
AD9648
AD9648-125
AVDD = 1.8 V, DRVDD = 1.8 V, maximum sample rate, VIN = −1.0 dBFS differential input, 1.0 V internal reference, and DCS enabled, unless
otherwise noted.
0
–15
–30
–45
–60
–75
–90
–105
–120
–135
2F1 – F2
2F2 – F1
2F1 + F2
6M 12M 18M 24M 30M 36M 42M 48M 54M 60M
FREQUENCY (MHz)
Figure 14. Two-Tone FFT with fIN1 = 29 MHz and fIN2 = 32 MHz
100
95
90
SFDR (dBc)
85
80
75
SNR (dBFS)
70
65
60
55
50
0
50
100
150
200
250
ANALOG INPUT FREQUENCY (MHz)
Figure 15. SNR/SFDR vs. Input Frequency (AIN) with 2 V p-p Full Scale
120
SFDRFS
100
–10
SFDR (dBc)
–30
IMD3(dBc)
–50
–70
–90 SFDR (dBFS)
–110
IMD3 (dBFS)
90 80 70 60 50 40 30 20 10
INPUT AMPLITUDE (dBFS)
Figure 17. Two-Tone SFDR/IMD3 vs. Input Amplitude (AIN) with fIN1 = 29 MHz
and fIN2 = 32 MHz
120
SFDR (dBc)
100
80
SNR (dBFS)
60
40
20
0
5 15 25 35 45 55 65 75 85 95 105 115 125
SAMPLE RATE (MSPS)
Figure 18. SNR/SFDR vs. Sample Rate with AIN = 9.7 MHz
120
100
SFDR (dBc)
80
SNRFS
80
SNR (dBFS)
60
60
SFDR
40
40
SNR
20
20
0
–90 –80 –70 –60 –50 –40 –30 –20 –10 0
INPUT AMPLITUDE (dBFS)
Figure 16. SNR/SFDR vs. Input Amplitude (AIN) with fIN = 9.7 MHz
0
5 15 25 35 45 55 65 75 85 95 105 115 125
SAMPLE RATE (MSPS)
Figure 19. SNR/SFDR vs. Sample Rate with AIN = 70.1 MHz
Rev. 0 | Page 20 of 44
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