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參數(shù)資料
| 型號： | AD9708 |
| 廠商： | Analog Devices, Inc. |
| 英文描述： | 8-Bit, 100 MSPS TxDAC D/A Converter |
| 中文描述： | 8位，100 MSPS的TxDAC系列D / A轉(zhuǎn)換 |
| 文件頁數(shù)： | 6/16頁 |
| 文件大?。?/td> | 246K |
| 代理商： | AD9708 |
AD9708
Typical AC Characterization Curves
Single-Ended Output, I
OUTA
, I
OUTFS
= 20 mA, T
A
= +25
8
C, unless otherwise noted)
–6–
REV. B
FREQUENCY – MHz
S
70
60
40
0.1
1
100
10
50
65
55
45
THD @ 10MSPS
THD @ 50MSPS
THD
@ 100MSPS
SINAD @ 10MSPS
SINAD @ 100MSPS
SINAD @ 50MSPS
Figure 3. SINAD/THD vs. f
OUT
(AVDD
and DVDD = 5.0 V)
FREQUENCY – MHz
S
70
60
40
0.1
1
100
10
50
65
55
45
THD @ 10MSPS
THD @ 50MSPS
THD
@ 100MSPS
SINAD @ 10MSPS
SINAD @ 100MSPS
SINAD @ 50MSPS
Figure 6. SINAD/THD vs. f
OUT
(AVDD
and DVDD = 3.0 V)
f
CLOCK
= 25MSPS
f
OUT
= 7.81MHz
SFDR = +60.7dBc
AMPLITUDE = 0dBFS
0
–100
START: 0Hz
STOP: 12.5MHz
1
Figure 9. Single-Tone Spectral Plot
@ 25 MSPS
FREQUENCY – MHz
S
70
60
40
0.1
1
100
10
50
65
55
45
THD @ 10MSPS
THD @ 50MSPS
THD
@ 100MSPS
SINAD @ 10MSPS
SINAD @ 100MSPS
SINAD @ 50MSPS
Figure 4. SINAD/THD vs. f
OUT
(Differ-
ential Output, AVDD and DVDD = 5.0 V)
FREQUENCY – MHz
S
70
60
40
0.1
1
100
10
50
65
55
45
THD
@ 10MSPS
THD
@ 50MSPS
THD @ 100MSPS
SINAD @ 10MSPS
SINAD @ 100MSPS
SINAD @ 50MSPS
Figure 7. SINAD/THD vs. f
OUT
(Differ-
ential Output, AVDD and DVDD = 3.0 V)
f
CLOCK
= 125MSPS
f
OUT
= 27.0MHz
SFDR = +52.7dBc
AMPLITUDE = 0dBc
0
START: 0Hz
STOP: 62.5MHz
–100
1
Figure 10. Single-Tone Spectral
Plot @ 125 MSPS
FREQUENCY – MHz
S
55
50
301
100
10
40
45
35
I
OUTFS
= 20mA
I
OUTFS
= 10mA
I
OUTFS
= 5mA
I
OUTFS
= 2.5mA
Figure 5. SINAD vs. I
OUTFS
@ 100 MSPS
FREQUENCY – MHz
S
52
50
42
0.1
10
1
46
48
44
I
OUTFS
= 20mA
I
OUTFS
= 5mA
I
OUTFS
= 2.5mA
I
OUTFS
= 10mA
Figure 8. SINAD vs. I
OUTFS
@ 20 MSPS
TIME – 5ns/Div
V
0.5
0.4
0.3
0.2
0.1
0.0
–0.1
0.6
–0.2
Figure 11. Step Response
(AVDD = +5 V or +3 V, DVDD = +5 V or +3 V, 50
V
Doubly Terminated Load,
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