Datasheet

AD9203
Rev. B | Page 8 of 28
TYPICAL PERFORMANCE CHARACTERISTICS
AVDD = 3 V, DRVDD = 3 V, F
S
= 40 MSPS, 1 V Internal Reference, PWRCON = AVDD, 50% Duty Cycle, unless otherwise noted.
61
47
49
51
53
55
57
59
0 20 40 60 80 100 120
00573-004
INPUT FREQUENCY (MHz)
SNR (dB)
2V DIFFERENTIAL INPUT
1V DIFFERENTIAL INPUT
1V SINGLE-ENDED INPUT
2V SINGLE-ENDED INPUT
Figure 4. SNR vs. Input Frequency and Configuration
60
35
40
45
50
55
9.6
5.5
6.3
7.1
8.0
8.8
0 20 40 60 80 100 120
00573-005
INPUT FREQUENCY (MHz)
SINAD (dB)
ENOB
2V DIFFERENTIAL
INPUT
1V DIFFERENTIAL INPUT
1V SINGLE-
ENDED INPUT
2V SINGLE-
ENDED INPUT
Figure 5. SINAD vs. Input Frequency and Configuration
–40
–45
–50
–55
–60
–65
–70
–75
0 20406080100120
00573-006
INPUT FREQUENCY (MHz)
THD (dB)
–0.5dB
–20dB
–6.0dB
Figure 6. THD vs. Input Frequency and Amplitude
(Differential Input VREF = 0.5 V)
35
85
80
75
70
65
60
55
50
45
40
0 20406080100120
00573-007
INPUT FREQUENCY (MHz)
SFDR (dB)
2V DIFFERENTIAL
INPUT
1V DIFFERENTIAL
INPUT
1V SINGLE-
ENDED INPUT
2V SINGLE-
ENDED INPUT
Figure 7. SFDR vs. Input Frequency and Configuration
–30
–35
–40
–45
–50
–55
–60
–65
–70
–75
–80
0 20406080100120
00573-008
INPUT FREQUENCY (MHz)
THD (dB)
1V DIFFERENTIAL
INPUT
1V SINGLE-
ENDED INPUT
2V SINGLE-
ENDED INPUT
2V DIFFERENTIAL
INPUT
1V DIFFERENTIAL
INPUT
1V SINGLE-
ENDED INPUT
2V SINGLE-
ENDED INPUT
Figure 8. THD vs. Input Frequency and Configuration
–35
–75
–65
–55
–45
0 20406080100120
00573-009
INPUT FREQUENCY (MHz)
THD (dB)
–0.5dB
–20dB
–6.0dB
Figure 9. THD vs. Input Frequency and Amplitude
(Differential Input VREF = 1 V)