Datasheet

AD9269
Rev. 0 | Page 14 of 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, DCS disabled,
unless otherwise noted.
100
90
80
70
60
50
40
30
20
10
0
0 50 100 150 200
INPUT FREQUENCY (MHz)
SNR/SFDR (dBFS/dBc)
08538-057
SFDR (dBc)
SNR (dBFS)
Figure 12. AD9269-80 SNR/SFDR vs. Input Frequency (AIN)
with 2 V p-p Full Scale
100
90
80
70
30
40
50
60
20
10
0
10 20 30 40 50 60 70 80
SAMPLE RATE (MSPS)
SNR/SFDR (dBFS/dBc)
08538-055
SFDR (dBc)
SNR (dBFS)
Figure 13. AD9269-80 SNR/SFDR vs. Sample Rate with AIN = 9.7 MHz
1.5
1.0
0.5
–0.5
0
–1.0
–1.5
0 16,384 32,768 49,152 65,536
OUTPUT CODE
DNL ERROR (LSB)
08538-038
Figure 14. DNL Error with f
IN
= 9.7 MHz
120
0
20
40
60
80
100
–65 –60 0–10–20–30–40–50
INPUT AMPLITUDE (dBFS)
SNR/SFDR (dBc/dBFS)
08538-061
SNR
SNRFS
SFDR
SFDRFS
Figure 15. AD9269-80 SNR/SFDR vs. Input Amplitude (AIN) with f
IN
= 9.7 MHz
4.0M
0
500k
1.0M
1.5M
2.0M
2.5M
3.0M
3.5M
NUMBER OF HITS
OUTPUT CODE
08538-048
N + 10
N + 9 N + 8 N + 7 N + 6 N + 5 N + 4 N + 3 N + 2 N + 1
N
N – 1 N – 2 N – 3 N – 4 N – 5 N – 6 N – 7 N – 8 N – 9
N – 10 N – 11 N – 12
2.8 LSB RMS
Figure 16. Grounded Input Histogram
0
6
4
2
–2
–4
–6
0 16,384 32,768 49,152 65,536
OUTPUT CODE
INL ERROR (LSB)
08538-037
Figure 17. INL with f
IN
= 9.7 MHz