AD9268
1.00
100
SFDR (dBc), CHANNEL B
0.75
0.50
95
0.25
0
90
85
–0.25
–0.50
SFDR (dBc), CHANNEL A
SNR (dBFS), CHANNEL B
80
75
–0.75
–1.00
SNR (dBFS), CHANNEL A
25 35 45 55 65
SAMPLE RATE (MSPS)
0
16,384
32,768
49,152
65,536
75
85
95
105 115 125
OUTPUT CODE
Figure 50. AD9268-125 Single-Tone SNR/SFDR vs. Sample Rate (fS)
with fIN = 70.1 MHz
Figure 53. AD9268-125 DNL with fIN = 9.7 MHz
3500
100
90
2.27LSB rms
SFDR (dBc)
SNR (dBFS)
3000
2500
2000
1500
1000
500
80
70
60
50
40
30
0
0.75 0.80 0.85 0.90 0.95 1.00 1.05 1.10 1.15 1.20
INPUT COMMON-MODE VOLTAGE (V)
OUTPUT CODE
Figure 51. AD9268-125 Grounded Input Histogram
Figure 54. SNR/SFDR vs. Input Common Mode (VCM)
with fIN = 30 MHz
4
DITHER ENABLED
DITHER DISABLED
2
0
–2
–4
0
16,384
32,768
49,152
65,536
OUTPUT CODE
Figure 52. AD9268-125 INL with fIN = 9.7 MHz
Rev. A | Page 24 of 44
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