Datasheet

10 50 100
150
f -InputFrequency-MHz
IN
f -SamplingFrequency-MSPS
S
SFDR-dBc
200 250 300
400
450350 500
30
40
50
100
60
70
80
90
110
120
125
65
70
8075 85 90
M0049-13
83
83
83
86
86
86
86
83
80
80
80
80
77
77
77
74
74
74
71
71
71
68
68
68
65
65
65
86
83
83
89
89
89
89
92
80
86
10 50 100
150
f -InputFrequency-MHz
IN
f -SamplingFrequency-MSPS
S
SFDR-dBc
200 250 300
400
450350 500
30
40
50
100
60
70
80
90
110
120
125
65
70
8075 85 90
M0049-14
88
85
88
88
88
85
82
82
82
79
82
91
79
79
79
76
76
76
76
73
73
73
70
70
70
67
94
91
91
88
85
85
91
ADS6445, ADS6444
ADS6443, ADS6442
SLAS531B –MAY 2007–REVISED DECEMBER 2009 www.ti.com
TYPICAL CHARACTERISTICS (continued)
All plots are at 25°C, AVDD = LVDD = 3.3 V, maximum rated sampling frequency, sine wave input clock, 1.5 V
PP
differential
clock amplitude, 50% clock duty cycle, –1 dBFS differential analog input, internal reference mode, 0 dB gain, 32k point FFT
(unless otherwise noted)
Contour Plots across Input and Sampling Frequencies
Figure 78. SFDR Contour (no gain)
Figure 79. SFDR Contour (3.5dB coarse gain)
46 Submit Documentation Feedback Copyright © 2007–2009, Texas Instruments Incorporated
Product Folder Link(s): ADS6445, ADS6444 ADS6443, ADS6442