AD9240 查看數據表（PDF） - Analog Devices
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AD9240 Datasheet PDF : 25 Pages
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AD9240
Typical
Differential
AC
Characterization
Curves/Plots
(AVDD = +5 V,
10 MSPS, RBIAS
DVDD = +5
= 2 k⍀, TA
V,
=
DRVDD
+25؇C,
= +5 V, fSAMPLE =
Differential Input)
90
85
80
–0.5dBFS
75
–6.0dBFS
70
65
–20.0dBFS
60
55
50
0.1
1
10 20
INPUT FREQUENCY – MHz
Figure 2. SINAD vs. Input Frequency
(Input Span = 5 V, VCM = 2.5 V)
–40
–50
–60
–20.0dBFS
–70
–6.0dBFS
–80
–90
–0.5dBFS
–100
0.1
1
10 20
INPUT FREQUENCY – MHz
Figure 3. THD vs. Input Frequency
(Input Span = 5 V, VCM = 2.5 V)
0
–10
–20
–30
–40
–50
–60
–70
–80
–90
–100
–110
–120
0
1st
2nd 3rd
9th 8th
4th
7th 6th
FREQUENCY – MHz
5th
5.0
Figure 4. Typical FFT, fIN = 1.0 MHz
(Input Span = 5 V, VCM = 2.5 V)
90
85
80
75
–0.5dBFS
70
–6.0dBFS
65
60
–20.0dBFS
55
50
0.1
1
10 20
INPUT FREQUENCY – MHz
Figure 5. SINAD vs. Input Frequency
(Input Span = 2 V, VCM = 2.5 V)
–40
–50
–60
–20.0dBFS
–70
–80
–6.0dBFS
–90
–0.5dBFS
–100
0.1
1
10 20
INPUT FREQUENCY – MHz
Figure 6. THD vs. Input Frequency
(Input Span = 2 V, VCM = 2.5 V)
0
1
–15
–30
–45
–60
–75
–90
2 46 8
3
97 5
–105
–120
–135
–150
0
5.0
FREQUENCY – MHz
Figure 7. Typical FFT, fIN = 5.0 MHz
(Input Span = 2 V, VCM = 2.5 V)
–60
–65
–70
5V SPAN
–75
–80
2V SPAN
–85
–90
–95
–100
0.1
1
10
SAMPLE RATE – MHz
Figure 8. THD vs. Sample Rate
(fIN = 5.0 MHz, AIN = –0.5 dBFS,
VCM = 2.5 V)
110
5V SPAN – dBFS
100
90
2V SPAN – dBFS
80
70 5V SPAN – dBc
60
2V SPAN – dBc
50
40
30
20
–60 –50 –40 –30 –20 –10 0
AIN – dB
Figure 9. Single Tone SFDR
(fIN = 5.0 MHz, VCM = 2.5 V)
110
105
5V SPAN – dBFS
100
95
2V SPAN – dBFS
90
85
80
75 5V SPAN – dBc
70
2V SPAN – dBc
65
60
–40 –35 –30 –25 –20 –15 –10 –5 0
INPUT POWER LEVEL (f1 = f2) – dBFS
Figure 10. Dual Tone SFDR
(f1 = 0.95 MHz, f2 = 1.04 MHz,
VCM = 2.5 V)
–6–
REV. B
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