AD9221/AD9223/AD9220
(AVDD = +5 V, DVDD = +5 V, fSAMPLE = 10 MSPS, TA = +25؇C)
AD9220–Typical Characterization Curves
1.0
0.8
1.0
0.8
8,123,672
0.6
0.6
0.4
0.4
0.2
0.2
0.0
0.0
–0.2
–0.4
–0.6
–0.8
–1.0
–0.2
–0.4
–0.6
130,323
N+1
134,613
–0.8
–1.0
1
4095
1
4095
N–1
N
CODE
CODE
CODE
Figure 22. “Grounded-Input”
Histogram (Input Span = 2 V p-p)
Figure 20. Typical DNL
Figure 21. Typical INL
–50
–55
–60
–65
–70
–75
–80
–85
–90
80
75
70
65
60
55
50
80
75
–0.5dB
–6dB
–0.5dB
70
–6.0dB
–20dB
–6dB
65
60
–20.0dB
55
50
–20dB
–0.5dB
45
40
45
40
–95
–100
0.1
1.0
10.0
0.5
1.0
10.0
0.1
1.0
10.0
FREQUENCY – MHz
FREQUENCY – MHz
FREQUENCY – MHz
Figure 24. THD vs. Input Frequency
(Input Span = 2.0 V p-p, VCM = 2.5 V)
Figure 25. SINAD vs. Input Fre-
quency (Input Span = 5.0 V p-p,
Figure 23. SINAD vs. Input Fre-
quency (Input Span = 2.0 V p-p,
VCM = 2.5 V)
VCM = 2.5 V)
90
80
70
–50
–60
–65
–55
–60
–65
–70
–75
–80
SFDR
5V p-p
–70
–20.0dB
60
50
–75
2V p-p
SNR
–0.5dB
–80
–85
–90
–6.0dB
40
30
20
10
–85
–90
–95
–100
0
–60
–50
–40
–30
–20
–10
0.1
1.0
FREQUENCY – MHz
10.0
1
10
15
A
– dBFS
IN
SAMPLE RATE – MSPS
Figure 28. SNR/SFDR vs. AIN (Input
Amplitude) (fIN = 5.0 MHz, Input
Span = 2 V p-p, VCM = 2.5 V)
Figure 26. THD vs. Input Frequency
(Input Span = 5.0 V p-p, VCM = 2.5 V)
Figure 27. THD vs. Clock Frequency
(AIN = –0.5 dB, fIN = 1.0 MHz, VCM
2.5 V)
=
–8–
REV. D
ADI [ ADI ]
