AD9268
0
–20
100
95
SNR @ –40°C
SFDR @ –40°C
SNR @ +25°C
SFDR @ +25°C
SNR @ +85°C
SFDR @ +85°C
SFDR (dBc)
90
–40
85
–60
IMD3 (dBc)
80
75
70
–80
SFDR (dBFS)
IMD3 (dBFS)
–78
–100
–120
65
–90
–66
–54
–42
–30
–18
–6
0
50
100
150
200
250
300
INPUT AMPLITUDE (dBFS)
INPUT FREQUENCY (MHz)
Figure 47. AD9268-125 Two-Tone SFDR/IMD3 vs. Input Amplitude (AIN
)
Figure 44. AD9268-125 Single-Tone SNR/SFDR vs. Input Frequency (fIN
)
with fIN1 = 169.1 MHz, fIN2 = 172.1 MHz, fS = 125 MSPS
with 2 V p-p Full Scale
0
95
90
125MSPS
29.1MHz @ –7dBFS
32.1MHz @ –7dBFS
SFDR = 89dBc (96dBFS)
–20
SFDR (dBc)
–40
85
–60
–80
80
75
70
65
SNR (dBFS)
–100
–120
–140
60
0
10
20
30
40
50
60
0
50
100
150
200
250
300
FREQUENCY (MHz)
INPUT FREQUENCY (MHz)
Figure 45. AD9268-125 Single-Tone SNR/SFDR vs. Input Frequency (fIN)
Figure 48. AD9268-125 Two-Tone FFT with fIN1 = 29.1 MHz and fIN2 = 32.1 MHz
with 1 V p-p Full Scale
0
0
125MSPS
169.1MHz @ –7dBFS
172.1MHz @ –7dBFS
–20
–20
SFDR = 81.8dBc (88.8dBFS)
SFDR (dBc)
–40
–40
–60
–80
IMD3 (dBc)
–60
–80
–100
–120
–140
SFDR (dBFS)
–100
IMD3 (dBFS)
–120
0
10
20
30
40
50
60
–90
–78
–66
–54
–42
–30
–18
–6
FREQUENCY (MHz)
INPUT AMPLITUDE (dBFS)
Figure 49. AD9268-125 Two-Tone FFT with fIN1 = 169.1 MHz and
IN2 = 172.1 MHz
Figure 46. AD9268-125 Two-Tone SFDR/IMD3 vs. Input Amplitude (AIN
)
f
with fIN1 = 29.1 MHz, fIN2 = 32.1 MHz, fS = 125 MSPS
Rev. A | Page 23 of 44
ADI [ ADI ]
