ADS5440-EP Datasheet, PDF (16/29 Pages) Texas Instruments – 13-BIT 210-MSPS ANALOG-TO-DIGITAL CONVERTER

ADS5440-EP
SGLS359 – AUGUST 2006
TYPICAL CHARACTERISTICS (continued)
AC Performance
vs
Input Amplitude
100
SFDR (dBFS)
80
SNR (dBFS)
AC Performance
vs
Input Amplitude
100
SFDR (dBFS)
80
SNR (dBFS)
60
60
40
SFDR (dBc)
SFDR (dBc)
40
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20
SNR (dBc)
0
f_S = 210 MSPS
f_IN = 100 MHz
−20
−100 −90 −80 −70 −60 −50 −40 −30 −20 −10 0
Input Amplitude − dBFS
G021
Figure 23.
Two-Tone Spurious Free Dynamic Range
vs
Input Amplitude
120
SFDR (dBFS)
100
80
60
SFDR (dBc)
40
90 dBFS Line
20
0
f_S = 210 MSPS
f₁ = 151 MHz
f₂ = 152 MHz
−20
−110−100 −90 −80 −70 −60 −50 −40 −30 −20 −10 0
Input Amplitude − dBFS
G023
Figure 25.
20
SNR (dBc)
0
f_S = 210 MSPS
f_IN = 230 MHz
−20
−100 −90 −80 −70 −60 −50 −40 −30 −20 −10 0
Input Amplitude − dBFS
G022
Figure 24.
Spurious Free Dynamic Range
vs
Clock Duty Cycle
80.0
f_S = 210 MSPS Square Wave
77.5
75.0
72.5
f_IN = 100.33 MHz
70.0
f_IN = 230.13 MHz
67.5
65.0
62.5
60.0
40
45
50
55
Duty Cycle − %
Figure 26.
60
G024
16
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