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參數(shù)資料
| 型號： | AD9042STPCB |
| 廠商： | Analog Devices, Inc. |
| 英文描述： | 12-Bit, 41 MSPS Monolithic A/D Converter |
| 中文描述： | 12位，41 MSPS的單片機(jī)的A / D轉(zhuǎn)換器 |
| 文件頁數(shù)： | 7/24頁 |
| 文件大?。?/td> | 488K |
| 代理商： | AD9042STPCB |
N
DIGITAL
OUTPUTS
(D11–D0)
N – 1
N – 2
t
A
= –250 PS TYP
N + 1
t
OD
= 9ns TYP
ANALOG
INPUT
(AIN)
ENCODE
INPUTS
(ENCODE)
N
Figure 1. Timing Diagram
REV. A
–7–
Equivalent Circuits–AD9042
V
OFFSET
200
6pF
250
250
AV
CC
AIN
250μA
+3.5V
AV
CC
250μA
AV
CC
+1.5V
Figure 2. Analog Input Stage
AV
CC
AV
CC
TIMING
CIRCUITS
R2
8k
R2
8k
R1
17k
R1
17k
ENCODE
ENCODE
AV
CC
Figure 3. Encode Inputs
AV
CC
AV
CC
C1
(PIN 10
*
)
CURRENT
MIRROR
V
REF
AV
CC
*
AD9042AST ONLY
INTERNAL NODE ON AD9042AD
Figure 4. Compensation Pin, C1
V
REF
DV
CC
DV
CC
CURRENT
MIRROR
CURRENT
MIRROR
D0–D11
Figure 5. Digital Output Stage
V
REF
AV
CC
0.5mA
2.4V
AV
CC
Figure 6. 2.4 V Reference
4
5
8
28
17
+5V
+5V
2,12,14
10k
200kHz
SINEWAVE
TTL CLOCK OSC.
0.1μF
10
9
49.9
NOTE: ALL +5V SUPPLY PINS & V
PIN BYPASSED TO GND
WITH A 0.1μF CAPACITOR. PINS 15,16 ARE NOT CONNECTED.
NC
1,3,6,7,11,13
ENCODE
ENCODE
AIN
VOFFSET
V
REF
D11
D0
Figure 7. AD9042AD Burn-In Diagram
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| AD9042AD | 12-Bit, 41 MSPS Monolithic A/D Converter |
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