ADS5277 Datasheet, PDF (16/28 Pages) Texas Instruments – 8-Channel, 10-Bit, 65MSPS Analog-to-Digital Converter with Serial LVDS Interface

ADS5277
SBAS333C – FEBRUARY 2005 – REVISED SEPTEMBER 2005
www.ti.com
TYPICAL CHARACTERISTICS (continued)
T_MIN = –40°C and T_MAX = +85°C. Typical values are at T_A = +25°C, sampling rate = 65MSPS, 50% clock duty cycle,
AVDD = 3.3V, LVDD = 3.3V, –1dBFS, I_SET = 56.2kΩ, internal voltage reference, LVDS buffer current at 3.5mA per channel,
16kFFT, and 8 averages, unless otherwise noted.
SFDR vs INPUT FREQUENCY
95
90
85
80
75
70
65
60
0
Internal Reference
10
20
30
40
50
60
70
Input Frequency (MHz)
Figure 13.
SWEPT POWER — SFDR
90
80
dBFS
70
60
50
dBc
40
30
20
10
0
−50
f_IN = 10MHz
−40
−30
−20
−10
0
Input Amplitude (dBFS)
Figure 15.
SWEPT POWER — SNR
70
dBFS
60
50
dBc
40
30
20
10
f_IN = 5MHz
0
−60 −45 −40 −35 −30 −25 −20 −15 −10 −5 0
Input Amplitude (dBFS)
Figure 17.
70
60
50
40
30
20
10
0
−50
SWEPT POWER — SNR
dBFS
dBc
f_IN = 10MHz
−40
−30
−20
−10
0
Input Amplitude (dBFS)
Figure 14.
70
60
50
40
30
20
10
0
−50
SWEPT POWER — SINAD
dBFS
dBc
f_IN = 10MHz
−40
−30
−20
−10
0
Input Amplitude (dBFS)
Figure 16.
SWEPT POWER — SINAD
70
dBFS
60
50
dBc
40
30
20
10
f_IN = 5MHz
0
−50 −45 −40 −35 −30 −25 −20 −15 −10 −5 0
Input Amplitude (dBFS)
Figure 18.
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