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f
IN
− Input Frequency − MHz
74
76
78
80
82
84
86
88
90
92
10 30 50 70 90 110 130 150 170 190 210 230
SFDR − dBc
G007
Input adjusted to get −1dBFS input
1 dB
6 dB
0 dB
2 dB
4 dB
3 dB
5 dB
f
IN
− Input Frequency − MHz
64
65
66
67
68
69
70
71
72
20 40 60 80 100 120 140 160 180 200 220
SINAD − dBFS
G008
2 dB
5 dB
1 dB
0 dB
3 dB
3.5 dB
4 dB
6 dB
SNR − dBFS
70
71
72
73
74
75
76
77
78
AV
DD
− Supply Voltage − V
72
74
76
78
80
82
84
86
88
3.0 3.1 3.2 3.3 3.4 3.5 3.6
SFDR − dBc
G009
SNR
SFDR
f
IN
= 70.1 MHz
LV
DD
= 3.3 V
SNR − dBFS
68
69
70
71
72
73
LV
DD
− Supply Voltage − V
78
82
86
90
94
98
3.0 3.1 3.2 3.3 3.4 3.5 3.6
SFDR − dBc
G010
f
IN
= 70.1 MHz
AV
DD
= 3.3 V
SNR
SFDR
50
55
60
65
70
75
80
85
90
Input Amplitude − dBFS
30
40
50
60
70
80
90
100
110
−40 −30 −20 −10 0
f
IN
= 20.1 MHz
SFDR − dBc, dBFS
G012
SNR − dBFS
SFDR (dBc)
SFDR (dBFS)
SNR (dBFS)
SNR − dBFS
69
70
71
72
73
74
75
T − Temperature − °C
74
76
78
80
82
84
86
−40 −20 0 20 40 60 80
SFDR − dBc
G011
f
IN
= 70.1 MHz
SNR
SFDR
ADS6424
ADS6423
ADS6422
SLAS532A – MAY 2007 – REVISED JUNE 2007
ADS6424 (F
srated
= 105 MSPS) (continued)
SFDR vs INPUT FREQUENCY ACROSS GAINS SINAD vs INPUT FREQUENCY ACROSS GAINS
Figure 12. Figure 13.
PERFORMANCE vs AVDD PERFORMANCE vs LVDD
Figure 14. Figure 15.
PERFORMANCE vs TEMPERATURE PERFORMANCE vs INPUT AMPLITUDE
Figure 16. Figure 17.
Copyright © 2007, Texas Instruments Incorporated 29
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