ADS5422 Datasheet, PDF (6/19 Pages) Texas Instruments – 14-Bit, 62MSPS Sampling ANALOG-TO-DIGITAL CONVERTER

TYPICAL CHARACTERISTICS (Cont.)
T_A = 25°C, +V_SA = +V_SD = +5V, differential input range = 1.5V to 3.5V each input (4Vp-p), sampling rate = 62MSPS, internal reference, and VDRV = 3V, unless otherwise
noted.
0
–20
–40
–60
–80
–100
–120
0
SPECTRAL PERFORMANCE (3Vp-p)
f_IN = 10MHz, –3dBFS
SFDR = 85.1dBFS
SNR = 71.9dBFS
5
10
15
20
25
30 31
Frequency (MHz)
0
–20
–40
–60
–80
–100
–120
0
2-TONE INTERMODULATION DISTORTION
f₁ = (–7dBc) = 14.5MHz
f₂ = (–7dBc) = 15.5MHz
SFDR = 89.7dB
5
10
15
20
25
30
Frequency (MHz)
1
0.8
0.6
0.4
0.2
0
–0.2
–0.4
–0.6
–0.8
–1
0
DIFFERENTIAL LINEARITY ERROR
f_IN = 1MHz
2000 4000 6000 8000 10000 12000 14000 16000
Code
5
4
3
2
1
0
–1
–2
–3
–4
–5
0
INTEGRAL LINEARITY ERROR
f_IN = 1MHz
2000 4000 6000 8000 10000 12000 14000 16000
Code
SFDR AND SNR vs INPUT FREQUENCY
100
SFDR
90
80
SNR
70
60
50
40
1.0
10
100
Frequency (MHz)
100
90
80
70
60
50
40
30
20
10
0
–60
SWEPT POWER (SFDR)
dBc
f_IN = 10MHz
dBFS
–50
–40
–30
–20
–10
0
Input Amplitude (dBFS)
6
ADS5422
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SBAS250C