Datasheet

Signal−to−Noise Ratio+Distortion (dBFS)
Input Frequency (MHz)
80
75
70
65
60
55
50
0 8010 20 30 40 50 60 70
Internal Reference
Spurious−Free Dynamic Range (dBc)
Input Frequency (MHz)
100
95
90
85
80
75
70
0 8010 20 30 40 50 60 70
Internal Reference
SNR (dBFS, dBc)
Input Amplitude (dBFS)
80
70
60
50
40
30
20
10
0
−
60
−
50 0
dBc
dBFS
−
40
−
30
−
20
−
10
f
IN
= 10MHz
SFDR (dBFS, dBc)
Input Amplitude (dBFS)
120
100
80
60
40
20
0
−
60
−
50 0
dBc
dBFS
−
40
−
30
−
20
−
10
f
IN
= 10MHz
SINAD (dBFS, dBc)
Input Amplitude (dBFS)
80
70
60
50
40
30
20
10
0
−
60
−
50 0
dBc
dBFS
−
40
−
30
−
20
−
10
f
IN
= 10MHz
SNR (dBFS, dBc)
Input Amplitude (dBFS)
80
70
60
50
40
30
20
10
0
−
60
−
50 0
dBc
dBFS
−
40
−
30
−
20
−
10
f
IN
= 5MHz
ADS5272
SBAS324C – JUNE 2004 – REVISED JANUARY 2009 ...................................................................................................................................................... www.ti.com
TYPICAL CHARACTERISTICS (continued)
T
MIN
= – 40 ° C and T
MAX
= +85 ° C. Typical values are at T
A
= +25 ° C, clock frequency = maximum specified, 50% clock duty
cycle, AVDD = 3.3V, LVDD = 3.3V, – 1dBFS, I
SET
= 56.2k Ω , internal voltage reference, LVDS buffer current at 3.5mA per
channel, 16kFFT, and 8 averages, unless otherwise noted.
SINAD vs INPUT FREQUENCY SFDR vs INPUT FREQUENCY
Figure 13. Figure 14.
SWEPT POWER — SNR SWEPT POWER — SFDR
Figure 15. Figure 16.
SWEPT POWER — SINAD SWEPT POWER — SNR
Figure 17. Figure 18.
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