ADS6444IRGCT View Datasheet(PDF) - STMicroelectronics
Part Name
Description
Manufacturer
ADS6444IRGCT Datasheet PDF : 75 Pages
| |||
ADS6445, ADS6444
ADS6443, ADS6442
SLAS531 – MAY 2007
ADS6443 (Fsrated = 80 MSPS) (continued)
www.ti.com
PERFORMANCE vs CLOCK AMPLITUDE (differential)
92
78
90 fIN = 50.1 MHz
77
88
76
SFDR
86
75
84
74
82
SNR
73
80
72
78
71
76
0.5
1.0
1.5
2.0
2.5
Input Clock Amplitude − VPP
Figure 54.
70
3.0
G049
PERFORMANCE vs CLOCK DUTY CYCLE
92
76
90
SFDR
75
88
74
86
SNR
84
fIN = 20.1 MHz
82
35
40
45
50
55
60
Input Clock Duty Cycle − %
Figure 55.
73
72
71
65
G050
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
20
40
60
80
fS − Sampling Frequency − MSPS
G051
Figure 56.
OUTPUT NOISE HISTOGRAM WITH
INPUTS TIED TO COMMON-MODE
40
RMS LSB = 1.016
35
30
25
20
15
10
5
0
8180 8181 8182 8183 8184 8185 8186 8187 8188 8189
Output Code
G052
Figure 57.
PERFORMANCE IN EXTERNAL REFERENCE MODE
96
76
fIN = 50.1 MHz
External Reference Mode
94
74
SNR
92
72
90
SFDR
70
88
68
86
66
1.30 1.35 1.40 1.45 1.50 1.55 1.60 1.65 1.70
VVCM − VCM Voltage − V
G053
Figure 58.
0
−10
−20
−30
−40
−50
−60
−70
−80
−90
−100
0
CMRR vs FREQUENCY
50
100
150
200
250
300
f − Frequency − MHz
G018
Figure 59.
40
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