AD9446-80LVDS Datasheet, PDF (19/36 Pages) Analog Devices – 16-Bit, 80/100 MSPS ADC

95
SFDR (dBc) +85°C
90
SFDR (dBc) –40°C
SFDR (dBc) +25°C
85
SNR (dB) –40°C
80
SNR (dB) +85°C
75
SNR (dB) +25°C
70
65
60
0 20 40 60 80 100 120 140 160 180
ANALOG INPUT FREQUENCY (MHz)
Figure 30. AD9446-80 SNR/SFDR vs. Analog Input Frequency, 80 MSPS, 3.2 V p-p
AD9446
95
SFDR (dBc) –40°C
90
SFDR (dBc) +25°C
85
SNR (dB) –40°C
80
SFDR (dBc) +85°C
75 _{SNR (dB) +25°C}
SNR (dB) +85°C
70
65
60
0 20 40 60 80 100 120 140 160 180
ANALOG INPUT FREQUENCY (MHz)
Figure 33. AD9446-80 SNR/SFDR vs. Analog Input Frequency, 80 MSPS, 2.0 V p-p
95
SFDR (dBc) +25°C
90
SFDR (dBc) –40°C
SFDR (dBc) +85°C
85
80
SNR (dB) +25°C
75
SNR (dB) +85°C
SNR (dB) –40°C
70
65
60
0 20 40 60 80 100 120 140 160 180
ANALOG INPUT FREQUENCY (MHz)
Figure 31. AD9446-80 SNR/SFDR vs. Analog Input Frequency, 80 MSPS, 3.2 V p-p,
CMOS Mode
120
SFDR dBFS
100
80
SNR dBFS
60
40
SFDR dBc
20
SNR dB
0
–100 –90 –80 –70 –60 –50 –40 –30 –20 –10 0
ANALOG INPUT AMPLITUDE (dB)
Figure 32. AD9446-80 SNR/SFDR vs. Analog Input Level, 80 MSPS
90
88
SFDR dBc
86
84
82
80
SNR dB
78
76
74
72
70
2.6 2.8 3.0 3.2 3.4 3.6 3.8 4.0 4.2
ANALOG INPUT COMMON-MODE VOLTAGE
Figure 34. AD9446-80 SNR/SFDR vs. Analog Input Common Mode, 80 MSPS
120
SFDR dBFS
100
80
SNR dBFS
60
40
SFDR dBc
20
SNR dB
0
–100 –90 –80 –70 –60 –50 –40 –30 –20 –10 0
ANALOG INPUT AMPLITUDE (dB)
Figure 35. AD9446-80 SNR/SFDR vs. Analog Input Level, 80 MSPS,
CMOS Output Mode
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