AD12401_15 Datasheet, PDF (16/28 Pages) Analog Devices – 12-Bit, 400 MSPS A/D Converter

AD12401
0
12
–10
–20
–30
–40
–50
–60
–70
–80
–90
–100
–110
0
20 40 60 80 100 120 140 160 180 200
FREQUENCY (MHz)
Figure 12. Two-Tone Intermodulation Distortion
(172.1 MHz and 175.1 MHz; fS = 400 MSPS), SFDR = 70 dBc;
X = Image Spur, N = Interleaved Offset Spur
0.5
0.4
0.3
0.2
0.1
0
–0.1
–0.2
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10.7 35.0 59.3 83.6 108 132 157 181 205 229
FREQUENCY (MHz)
Figure 13. Interleaved Gain Flatness
100
THIRD HARMONIC
95
90
85
80
IMAGE SPUR
75
SECOND HARMONIC
70
65
60
0
10
20
30
40
50
60
70
ANALOG INPUT LEVEL (dB)
Figure 14. Second/Third Harmonics and Image Spur vs. Analog Input Level;
fS = 400 MSPS, AIN = 70 MHz
95
IMAGE SPUR
90
THIRD HARMONIC
85
80
75
SECOND HARMONIC
70
65
60
0 20 40 60 80 100 120 140 160 180
ANALOG INPUT FREQUENCY (MHz)
Figure 15. Harmonics vs. Analog Input Frequency
64.5
64.0
63.5
63.0
62.5
62.0
61.5
61.0
60.5
60.0
59.5
0
50
100
150
200
ANALOG INPUT FREQUENCY (MHz)
Figure 16. SNR vs. Analog Input Frequency
1.0
0.9
0.8
0.7
0.6
0.5
0.4
0.3
0
20 40 60 80 100 120 140 160 180 200
INPUT FREQUENCY (MHz)
Figure 17. VD Supply Current vs. AIN Frequency
Rev. A | Page 16 of 28