Datasheet

Data Sheet AD9266
Rev. A | Page 15 of 32
AD9266-20
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, DCS disabled, unless otherwise noted.
0
–140
–120
–100
–80
–60
–40
–20
0 1 2 3 4 5 6 7 8 9 10
AMPLITUDE (dBFS)
FREQUENCY (MHz)
20MSPS
9.7MHz @ –1dBFS
SNR = 76.9dB (77.9dBFS)
SFDR = 95.6dBc
08678-024
Figure 24. AD9266-20 Single-Tone FFT with f
IN
= 9.7 MHz
0
–140
–120
–100
–80
–60
–40
–20
0 1 2 3 4 5 6 7 8 9 10
AMPLITUDE (dBFS)
FREQUENCY (MHz)
20MSPS
30.6MHz @ –1dBFS
SNR = 76.7dB (77.7dBFS)
SFDR = 90.7dBc
08678-026
Figure 25. AD9266-20 Single-Tone FFT with f
IN
= 30.6 MHz
120
100
80
60
40
20
0
–90 –80 –70 –60 –50 –40 –30 –20 –10 0
INPUT AMPLITUDE (dBFS)
SNR/SFDR (dBFS/dBc)
SFDRFS
SNRFS
SFDR (dBc)
SNR (dBc)
08678-058
Figure 26. AD9266-20 SNR/SFDR vs. Input Amplitude (AIN) with f
IN
= 9.7 MHz