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參數(shù)資料
| 型號： | AD9240AS |
| 廠商： | ANALOG DEVICES INC |
| 元件分類： | ADC |
| 英文描述： | Complete 14-Bit, 10 MSPS Monolithic A/D Converter |
| 中文描述： | 1-CH 14-BIT FLASH METHOD ADC, PARALLEL ACCESS, QFP44 |
| 封裝： | MS-022AB-1, MQFP-44 |
| 文件頁數(shù)： | 6/24頁 |
| 文件大?。?/td> | 328K |
| 代理商： | AD9240AS |
AD9240
REV. A
–6–
Typical Differential AC Characterization Curves/Plots
(AVDD = +5 V, DVDD = +5 V, DRVDD = +5 V, f
SAMPLE
=
10 MSPS, R
BIAS
= 2 k
V
, T
A
= +25
8
C, Differential Input)
INPUT FREQUENCY – MHz
90
85
0.1
1
20
10
55
50
65
60
80
70
75
S
–0.5dBFS
–6.0dBFS
–20.0dBFS
Figure 2. SINAD vs. Input Frequency
(Input Span = 5 V, V
CM
= 2.5 V)
INPUT FREQUENCY – MHz
90
85
0.1
1
20
10
55
50
65
60
80
70
75
S
–0.5dBFS
–6.0dBFS
–20.0dBFS
Figure 5. SINAD vs. Input Frequency
(Input Span = 2 V, V
CM
= 2.5 V)
SAMPLE RATE – MHz
–60
–65
0.1
1
10
–95
–100
–85
–90
–70
–80
–75
T
5V SPAN
2V SPAN
Figure 8. THD vs. Sample Rate
(f
IN
= 5.0 MHz, A
IN
= –0.5 dBFS,
V
CM
= 2.5 V)
INPUT FREQUENCY – MHz
–40
–100
0.1
1
20
10
–90
–80
–70
–50
–60
T
–0.5dBFS
–6.0dBFS
–20.0dBFS
Figure 3. THD vs. Input Frequency
(Input Span = 5 V, V
CM
= 2.5 V)
INPUT FREQUENCY – MHz
–40
–100
0.1
1
20
10
–90
–80
–70
–50
–60
T
–20.0dBFS
–6.0dBFS
–0.5dBFS
Figure 6. THD vs. Input Frequency
(Input Span = 2 V, V
CM
= 2.5 V)
AIN – dB
S
110
20
90
60
50
40
30
80
70
–60
–50
0
–40
–30
–20
–10
5V SPAN – dBc
2V SPAN – dBFS
5V SPAN – dBFS
100
2V SPAN – dBc
Figure 9. Single Tone SFDR
(f
IN
= 5.0 MHz, V
CM
= 2.5 V)
FREQUENCY – MHz
A
0
–70
–100
0
5.0
–10
–20
–60
–80
–90
–40
–50
–30
–110
–120
1st
9th
8th
2nd
3rd
7th
6th
4th
5th
Figure 4. Typical FFT, f
IN
= 1.0 MHz
(Input Span = 5 V, V
CM
= 2.5 V)
2
FREQUENCY – MHz
A
0
–15
–30
–45
–60
–75
–90
–105
–120
–135
–150
1
3
4
5
6
7
8
9
0
5.0
Figure 7. Typical FFT, f
IN
= 5.0 MHz
(Input Span = 2 V, V
CM
= 2.5 V)
INPUT POWER LEVEL (
f
1
=
f
2
) – dBFS
Figure 10. Dual Tone SFDR
(f
1
= 0.95 MHz, f
2
= 1.04 MHz,
V
CM
= 2.5 V)
W110
60
–40 –35
0
–30 –25 –20 –15 –10
–5
105
90
85
75
65
100
95
80
70
5V SPAN – dBFS
5V SPAN – dBc
2V SPAN – dBFS
2V SPAN – dBc
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