ADS6444IRGCT View Datasheet(PDF) - STMicroelectronics
Part Name
Description
Manufacturer
ADS6444IRGCT Datasheet PDF : 75 Pages
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ADS6445, ADS6444
ADS6443, ADS6442
SLAS531 – MAY 2007
ADS6444 (Fsrated = 105 MSPS) (continued)
www.ti.com
SFDR vs INPUT FREQUENCY ACROSS GAINS
92
Input adjusted to get −1dBFS input
90
4 dB
88
5 dB
86
3 dB
84
82
6 dB
80
2 dB
78
1 dB
0 dB
76
74
10 30 50 70 90 110 130 150 170 190 210 230
Fin − Input Frequency − MHz
G025
Figure 30.
SINAD vs INPUT FREQUENCY ACROSS GAINS
75
74
0 dB 3.5 dB
73
1 dB
72
2 dB
71
3 dB
70
69
68
67
66
65
20
4 dB 5 dB 6 dB
40 60 80 100 120 140 160 180 200 220
Fin − Input Frequency − MHz
G026
Figure 31.
PERFORMANCE vs AVDD
88
86
fIN = 70.1 MHz
LVDD = 3.3 V
84
SFDR
82
80
78
76
SNR
74
72
3.0
3.1
3.2
3.3
3.4
3.5
AVDD − Supply Voltage − V
Figure 32.
78
77
76
75
74
73
72
71
70
3.6
G027
PERFORMANCE vs LVDD
98
fIN = 70.1 MHz
AVDD = 3.3 V
94
90
SNR
86
SFDR
82
78
3.0
3.1
3.2
3.3
3.4
3.5
LVDD − Supply Voltage − V
Figure 33.
75
74
73
72
71
70
3.6
G028
PERFORMANCE vs TEMPERATURE
86
77
84
76
SFDR
82
75
80
74
SNR
78
73
76
fIN = 70.1 MHz
74
−40 −20
0
20
40
60
T − Temperature − °C
Figure 34.
72
71
80
G029
PERFORMANCE vs INPUT AMPLITUDE
110
90
100
85
90 SFDR (dBFS)
80
80
75
SNR (dBFS)
70
70
60
65
50
40
30
−60
SFDR (dBc)
−50
−40
−30
60
55
fIN = 20 MHz
50
−20
−10
0
Input Amplitude − dBFS
G030
Figure 35.
36
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