ADS5481 Datasheet, PDF (26/54 Pages) Texas Instruments – 16-Bit, 80/105/135-MSPS Analog-to-Digital Converters

ADS5517
SLWS203 – DECEMBER 2007
www.ti.com
TYPICAL CHARACTERISTICS
All plots are at 25°C, AVDD = DRVDD = 3.3 V, sampling frequency = 200 MSPS, 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, DDR LVDS data
output (unless otherwise noted)
FFT for 20 MHz INPUT SIGNAL
0
SFDR = 86.68 dBc,
-20
SNR = 67.27 dBFS,
-40
SINAD = 67.19 dBFS
THD = 83.31 dBc
-60
-80
-100
-120
-140
0
10 20
30 40 50 60 70 80 90 100
f - Frequency - MHz
Figure 9.
FFT for 130 MHz INPUT SIGNAL
0
SFDR = 82.5 dBc,
-20 SNR = 66.82 dBFS,
SINAD = 66.69 dBFS
-40 THD = 81.18 dBc
-60
-80
-100
-120
-140
0
10 20
30 40 50 60 70 80 90 100
f - Frequency - MHz
Figure 11.
FFT for 430 MHz INPUT SIGNAL
0
SFDR = 66.56 dBc,
-20
SNR = 65.04 dBFS,
SINAD = 62.77 dBFS
-40
THD = 65.61 dBc
-60
-80
-100
-120
-140
0
10 20
30 40 50 60 70 80 90 100
f - Frequency - MHz
Figure 13.
FFT for 70 MHz INPUT SIGNAL
0
SFDR = 89.4 dBc,
-20 SNR = 66.91 dBFS,
SINAD = 66.84 dBFS
-40 THD = 84.11 dBc
-60
-80
-100
-120
-140
0
10 20
30 40 50 60 70 80 90 100
f - Frequency - MHz
Figure 10.
FFT for 270 MHz INPUT SIGNAL
0
SFDR = 74.46 dBc,
-20 SNR = 66.09 dBFS,
SINAD = 65.13 dBFS
-40 THD = 71.17 dBc
-60
-80
-100
-120
-140
0
10 20
30 40 50 60 70 80 90 100
f - Frequency - MHz
Figure 12.
INTERMODULATION DISTORTION (IMD) vs FREQUENCY
0
-20
f_IN1 = 185.3 MHz, -7 dBFS,
f_IN2 = 190.1 MHz, -7 dBFS,
-40
SFDR = 98 dBFS,
2-Tone IMD, 87 dBFS
-60
-80
-100
-120
-140
0 10 20 30 40 50 60 70 80 90 100
f - Frequency - MHz
Figure 14.
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