TYPICAL CHARACTERISTICS: AVDD = 3.3V (Cont.)
TMIN = –40°C, TMAX = +85°C, typical values are at TA = +25°C, sampling rate = 40MSPS, 50% clock duty cycle, AVDD = 3.3V, DVDD = 3.3V, VDRV = 2.5V, –1dBFS,
DCA off, internal reference voltage, and 2VPP differential input, unless otherwise noted.
SPECTRAL PERFORMANCE
(Single-Ended, 2VPP
)
TWO-TONE INTERMODULATION DISTORTION
0
−20
0
−20
fIN = 9.7MHz (−1dBFS)
SFDR = 80.2dBFS
SNR = 69.6dBFS
fIN = 9.5MHz (−7dBFS)
IN = 10.5MHz (−7dBFS)
f
SFDR = 93.3dBFS
SINAD = 69.1dBFS
−40
−40
−60
−60
−80
−80
−100
−120
−100
−120
0
2
4
6
8
10
12
14
16
18
20
0
2
4
6
8
10
Frequency (MHz)
12
14
16
18
20
Frequency (MHz)
INTEGRAL LINEARITY ERROR
EXTERNAL REFERENCE
INTEGRAL LINEARITY ERROR
1.0
0.8
1.0
0.8
fIN = 9.7MHz
fIN = 9.7MHz
0.6
0.6
0.4
0.4
0.2
0.2
0
0
–0.2
–0.4
–0.6
–0.8
–1.0
–0.2
–0.4
–0.6
–0.8
–1.0
0
1024
2048
Code
3072
4096
0
1024
2048
Code
3072
4096
DIFFERENTIAL LINEARITY ERROR
EXTERNAL REFERENCE
DIFFERENTIAL LINEARITY ERROR
1.0
0.8
1.0
0.8
f
IN = 9.7MHz
f
IN = 9.7MHz
0.6
0.6
0.4
0.4
0.2
0.2
0
0
–0.2
–0.4
–0.6
–0.8
–1.0
–0.2
–0.4
–0.6
–0.8
–1.0
0
1024
2048
Code
3072
4096
0
1024
2048
Code
3072
4096
ADS5220
SBAS261A
7
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