ADS6444IRGCT View Datasheet(PDF) - STMicroelectronics
Part Name
Description
Manufacturer
ADS6444IRGCT Datasheet PDF : 75 Pages
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www.ti.com
ADS6445 (Fsrated = 125 MSPS) (continued)
ADS6445, ADS6444
ADS6443, ADS6442
SLAS531 – MAY 2007
PERFORMANCE vs TEMPERATURE
86
77
84
76
SFDR
82
75
80
74
SNR
78
73
76
fIN = 50.1 MHz
74
−40 −20
0
20
40
60
T − Temperature − °C
Figure 16.
72
71
80
G011
PERFORMANCE vs INPUT AMPLITUDE
110
78
100
77
90 SFDR (dBFS)
76
80
75
70
SNR (dBFS)
74
60
73
50
40
30
−60
SFDR (dBc)
−50
−40
−30
72
71
fIN = 20 MHz
70
−20
−10
0
Input Amplitude − dBFS
G012
Figure 17.
PERFORMANCE vs CLOCK AMPLITUDE (differential)
86
77
fIN = 50.1 MHz
84
76
SFDR
82
75
80
74
78
73
SNR
76
72
74
71
72
0.5
1.0
1.5
2.0
2.5
Input Clock Amplitude − VPP
Figure 18.
70
3.0
G013
PERFORMANCE vs CLOCK DUTY CYCLE
90
78
SFDR
89
77
88
76
87
75
86
SNR
85
fIN = 20.1 MHz
84
35
40
45
50
55
60
Input Clock Duty Cycle − %
Figure 19.
74
73
72
65
G014
POWER DISSIPATION vs SAMPLING FREQUENCY
2.0
1.8
1.6
1.4
1.2
1.0
AVDD
0.8
0.6
0.4
LVDD
0.2
0.0
0
25
50
75
100
125
fS − Sampling Frequency − MSPS
G015
Figure 20.
OUTPUT NOISE HISTOGRAM WITH
INPUTS TIED TO COMMON-MODE
40
RMS LSB = 1.064
35
30
25
20
15
10
5
0
8187 8188 8189 8190 8191 8192 8193 8194 8195 8196
Output Code
G016
Figure 21.
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