AD9649 Datasheet, PDF (14/32 Pages) Analog Devices – 14-Bit, 20/40/65/80 MSPS, 1.8 V Analog-to-Digital Converter

AD9649
AD9649-40
AVDD = 1.8 V; DRVDD = 1.8 V, maximum sample rate, 2 V p-p differential input, 1.0 V internal reference; AIN = −1.0 dBFS, 50% duty cycle
clock, unless otherwise noted.
0
40MSPS
9.7MHz @ –1dBFS
–15 _{SNR = 73.5dB (74.5dBFS)}
SFDR = 95.4dBc
–30
–45
–60
–75
–90
–105 ⁴
5
3
2
6
120
SFDRFS
100
80
SNRFS
60
SFDR
40
SNR
20
–120
2 4 6 8 10 12 14 16 18
FREQUENCY (MHz)
Figure 21. AD9649-40 Single-Tone FFT with fIN = 9.7 MHz
0
–90 –80
–60
–40
–20
0
INPUT AMPLITUDE (dBFS)
Figure 23. AD9649-40 SNR/SFDR vs. Input Amplitude (AIN) with fIN = 9.7 MHz
0
40MSPS
30.5MHz @ –1dBFS
–15 _{SNR = 73.2dB (74.2dBFS)}
SFDR = 95.7dBc
–30
–45
–60
–75
–90
–105
4
5
3
2
6
–120
2 4 6 8 10 12 14 16 18
FREQUENCY (MHz)
Figure 22. AD9649-40 Single-Tone FFT with fIN = 30.5 MHz
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