Datasheet

SNR − dBFS
70
71
72
73
74
75
LV
DD
− Supply Voltage − V
78
82
86
90
94
98
3.0 3.1 3.2 3.3 3.4 3.5 3.6
SFDR − dBc
G028
f
IN
= 70.1 MHz
AV
DD
= 3.3 V
SNR
SFDR
SNR − dBFS
70
71
72
73
74
75
76
77
78
AV
DD
− Supply Voltage − V
72
74
76
78
80
82
84
86
88
3.0 3.1 3.2 3.3 3.4 3.5 3.6
SFDR − dBc
G027
SNR
SFDR
f
IN
= 70.1 MHz
LV
DD
= 3.3 V
ADS6445, ADS6444
ADS6443, ADS6442
www.ti.com
SLAS531B MAY 2007REVISED 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)
SFDR vs INPUT FREQUENCY SNR vs INPUT FREQUENCY
Figure 28. Figure 29.
SFDR vs INPUT FREQUENCY ACROSS GAINS SINAD vs INPUT FREQUENCY ACROSS GAINS
Figure 30. Figure 31.
PERFORMANCE vs AVDD PERFORMANCE vs LVDD
Figure 32. Figure 33.
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