ADS5272_13 Datasheet, PDF (14/33 Pages) Texas Instruments – 8-Channel, 12-Bit, 65MSPS ADC

ADS5272
SBAS324C – JUNE 2004 – REVISED JANUARY 2009...................................................................................................................................................... www.ti.com
TYPICAL CHARACTERISTICS
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 = 56.2kΩ, internal voltage reference, LVDS buffer current at 3.5mA per
channel, 16kFFT, and 8 averages, unless otherwise noted.
0
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SPECTRAL PERFORMANCE
f_IN = 1MHz, −1dBFS
SNR = 71.2dBFS
SINAD = 71.1dBFS
SFDR = 90dBc
16 Averages
5
10
15
20
25
30 32.5
Input Frequency (MHz)
Figure 1.
SPECTRAL PERFORMANCE
f_IN = 10MHz, −1dBFS
SNR = 70.8dBFS
SINAD = 70.7dBFS
SFDR = 87dBc
16 Averages
5
10
15
20
25
30 32.5
Input Frequency (MHz)
Figure 3.
INTERMODULATION DISTORTION
f₁ = 9.5MHz
f₂ = 10.2MHz
IMD3 = 96dBFS
16 Averages
5
10
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20
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30 32.5
Input Frequency (MHz)
Figure 5.
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SPECTRAL PERFORMANCE
f_IN = 5MHz, −1dBFS
SNR = 71.1dBFS
SINAD = 70dBFS
SFDR = 88.5dBc
16 Averages
5
10
15
20
25
30 32.5
Input Frequency (MHz)
Figure 2.
SPECTRAL PERFORMANCE
0
−10 ^{fIN = 20MHz}
SNR = 70dBFS
−20 _{SINAD = 69.9dBFS}
−30 _{SFDR = 86dBc}
−40 _{16 Averages}
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Input Frequency (MHz)
Figure 4.
30 32.5
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CROSSTALK
f_IN = 5MHz
Crosstalk = 90dBFS
16 Averages
5
10
15
20
25
30 32.5
Input Frequency (MHz)
Figure 6.
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