Datasheet

10 50 100
150
f -InputFrequency-MHz
IN
f -SamplingFrequency-MSPS
S
SNR-dBFS
200 250 300
400
450350 500
30
40
50
100
60
70
80
90
110
120
125
60
65
7570
M0048-13
73
73
73
71
71
71
72
72
72
70
70
70
69
69
69
68
68
68
67
67
67
66
66
66
66
65
65
65
65
64
64
64
64
63
62
74
74
74
10 50 100
150
f -InputFrequency-MHz
IN
f -SamplingFrequency-MSPS
S
SNR-dBFS
200 250 300
400
450350 500
30
40
50
100
60
70
80
90
110
120
125
60
6462 66 68 70
72
M0048-14
71
71
71
72
72
72
70
70
70
69
69
69
68
68
68
67
67
67
66
66
66
65
65
65
64
64
64
63
63
62
61
ADS6445, ADS6444
ADS6443, ADS6442
www.ti.com SLAS531B –MAY 2007–REVISED DECEMBER 2009
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)
Figure 80. SNR Contour (no gain)
Figure 81. SNR Contour (3.5dB coarse gain)
Copyright © 2007–2009, Texas Instruments Incorporated Submit Documentation Feedback 47
Product Folder Link(s): ADS6445, ADS6444 ADS6443, ADS6442