AD9268
120
110
100
90
250,000
200,000
150,000
100,000
50,000
0
2.23 LSB rms
SNRFS (DITHER ON)
SNRFS (DITHER OFF)
SFDRFS (DITHER ON)
SFDRFS (DITHER OFF)
80
70
–100 –90 –80 –70 –60 –50 –40 –30 –20 –10
0
INPUT AMPLITUDE (dBFS)
OUTPUT CODE
Figure 26. AD9268-105 Single-Tone SNR/SFDR vs. Input Amplitude (AIN
)
Figure 29. AD9268-105 Grounded Input Histogram
with fIN = 30 MHz with and without Dither Enabled
100
6
4
2
0
SNR @ –40°C
SFDR @ –40°C
SNR @ +25°C
SFDR @ +25°C
SNR @ +85°C
SFDR @ +85°C
DITHER ENABLED
DITHER DISABLED
95
90
85
80
75
70
65
–2
–4
–6
0
0
50
100
150
200
250
300
10,000
20,000
30,000 40,000
OUTPUT CODE
50,000
60,000
INPUT FREQUENCY (MHz)
Figure 27. AD9268-105 Single-Tone SNR/SFDR vs. Input Frequency (fIN
)
Figure 30. AD9268-105 INL with fIN = 9.7 MHz
with 2 V p-p Full Scale
105
1.00
SNR, CHANNEL B
SFDR, CHANNEL B
SNR, CHANNEL A
SFDR, CHANNEL A
0.75
0.50
100
95
0.25
0
90
–0.25
–0.50
85
80
75
–0.75
–1.00
25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 100 105
0
10,000
20,000
30,000 40,000
OUTPUT CODE
50,000
60,000
SAMPLE RATE (MSPS)
Figure 28. AD9268-105 Single-Tone SNR/SFDR vs. Sample Rate (fS)
with fIN = 70.1 MHz
Figure 31. AD9268-105 DNL with fIN = 9.7 MHz
Rev. A | Page 2± of 44
ADI [ ADI ]
