Datasheet

AD9444
Rev. 0 | Page 16 of 40
65
66
67
68
69
70
71
72
73
74
75
0 20 40 60 80 100 120 140 160 180 200
ANALOG INPUT FREQUENCY (MHz)
(dB)
05089-018
SNR dB @ +85°C
SNR dB @ –40°C
SNR dB @ +25°C
Figure 18. SNR vs. Analog Input Frequency, 80 MSPS/LVDS Mode
05089-019
70
75
80
85
90
95
105
0 20 40 60 80 100 120 140 160 180 200
ANALOG INPUT FREQUENCY (MHz)
(dB)
SFDR dBc @ +85°C
SFDR dBc @ +25°C
100
SFDR dBc @ –40°C
Figure 19. SFDR vs. Analog Input Frequency, 80 MSPS/LVDS Mode
10
20
30
40
50
60
70
80
90
100
110
120
–100 –90 –80 –70 –60 –50 –40 –30 –20 –10 0
ANALOG INPUT AMPLITUDE (dBc)
(dB)
05089-020
THIRD –dBFS
SECOND –dBFS
SFDR –dBFS
THIRD –dBc
SECOND –dBc
SFDR –dBFS
Figure 20. Single-Tone SFDR/Second/Third vs.
Analog Input Level, 80 MSPS, A
IN
= 30.3 MHz
05089-021
65
66
67
68
69
70
71
72
73
74
75
0 20 40 60 80 100 120 140 160 180 200
ANALOG INPUT FREQUENCY (MHz)
(dB)
SNR dB @ +85°C
SNR dB @ –40°C
SNR dB @ +25°C
Figure 21. SNR vs. Analog Input Frequency, 80 MSPS/CMOS Mode
05089-022
0 20 40 60 80 100 120 140 160 180 200
ANALOG INPUT FREQUENCY (MHz)
SFDR dBc @ +25°C
SFDR dBc @ –40°C
SFDR dBc @ +85°C
70
75
80
85
90
95
100
105
(dB)
Figure 22. SFDR vs. Analog Input Frequency, 80 MSPS/CMOS Mode
05089-023
10
20
30
40
50
60
70
80
90
100
110
120
–100 –90 –80 –70 –60 –50 –40 –30 –20 –10 0
ANALOG INPUT AMPLITUDE (dBc)
(dB)
THIRD –dBFS
SECOND –dBFS
SFDR –dBFS
THIRD –dBc
SECOND –dBc
SFDR –dBFS
Figure 23. Single-Tone SFDR/Second/Third vs.
Analog Input Level 80 MSPS, A
IN
= 70.30 MHz