ADS5521 Datasheet, PDF (15/36 Pages) Burr-Brown (TI) – 12-Bit, 105MSPS Analog-toDigital Converter

ADS5521
www.ti.com ...................................................................................................................................................... SBAS309D – MAY 2004 – REVISED OCTOBER 2008
TYPICAL CHARACTERISTICS (continued)
Typical values given at T_A = 25°C, AV_DD = DRV_DD = 3.3 V, differential input amplitude = -1dBFS, sampling rate = 105MSPS,
DLL On,
and 3-V differential clock, unless otherwise noted
SPECTRAL PERFORMANCE
(FFT for 150 MHz Input Signal)
0
SFDR = 75.3dBc
−20 ^{SNR = 69.4dBFS}
THD = 75.0dBc
SINAD = 68.1dBFS
−40
−60
−80
−100
−120
0
0
−20
−40
10
20
30
40
50
f − Frequency − MHz
Figure 11.
SPECTRAL PERFORMANCE
(FFT for 300 MHz Input Signal)
SFDR = 65.6dBc
SNR = 66.6dBFS
THD = 64.9dBc
SINAD = 62.7dBFS
−60
−80
−100
−120
0
10
20
30
40
50
f − Frequency − MHz
Figure 13.
TWO-TONE
INTERMODULATION
0
f1 = 45.1MHz (−7dBFS)
−20 ^{f2 = 50.1MHz (−7dBFS)}
2−Tone IMD = 94.0dBc
−40
−60
−80
−100
−120
0
10
20
30
40
50
f − Frequency − MHz
Figure 15.
SPECTRAL PERFORMANCE
(FFT for 220 MHz Input Signal)
0
SFDR = 73.1dBc
−20
SNR = 68.2dBFS
THD = 71.9dBc
SINAD = 66.6dBFS
−40
−60
−80
−100
−120
0
0
−20
−40
10
20
30
40
50
f − Frequency − MHz
Figure 12.
TWO-TONE
INTERMODULATION
f1 = 10.1MHz (−7dBFS)
f2 = 15.1MHz (−7dBFS)
2−Tone IMD = 94.1dBFS
−60
−80
−100
−120
0
10
20
30
40
50
f − Frequency − MHz
Figure 14.
TWO-TONE
INTERMODULATION
0
f1 = 150.1MHz (−7dBFS)
−20 ^{f2 = 155.1MHz (−7dBFS)}
2−Tone IMD = 85.1dBFS
−40
−60
−80
−100
−120
0
10
20
30
40
50
f − Frequency − MHz
Figure 16.
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