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參數(shù)資料
| 型號： | ADS-238Q |
| 廠商： | Electronic Theatre Controls, Inc. |
| 英文描述： | 12-Bit, 20MHz, Low Power Sampling A/D Converters |
| 中文描述： | 12位，20MHz的，低功耗采樣A / D轉(zhuǎn)換器 |
| 文件頁數(shù)： | 3/7頁 |
| 文件大小： | 83K |
| 代理商： | ADS-238Q |
ADS-238Q
3
Figure 2. ADS-238QTypical Connection Diagram
Figure 3-1. ADS-238Q Transformer Coupled Input
Figure 3-2. ADS-238Q DC Coupled Single Ended Input
+3.3V
Digital
Decoupling
Cap
DGND
AGND
Interfacing
3V Logic
Ferrite Bead
EXC-ELSA35
Minicircuit
T1-6T
RF In
51
68pF
0.01μF
0.01μF
0.01μF
0.01μF
0.1μF
10μF
+
(+1.65V)
9.5μA
90μA
4.7μF
4.7μF
+
+
Ref+ In
(+2.15V)
Ref– In
(+1.15V)
+3.3V
+3.3V
CLK In
(3V Logic)
Bit 12 (LSB)
Bit 2
Bit 1(MSB)
Bit 11
NC
NC
NC
GND
Bias1
Bias2
V
CM
V
IN+
V
S
V
IN–
GND
G
C
N
V
S
V
S
V
S
V
S
V
S
V
S
V
R
V
R
GND
GND
Bit 10
Bit 9
Bit 8
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
B
B
34
1
33
44
22
23
11
12
ADS-238Q
Minicircuit
T1-6T
RF In
51
68pF
0.01μF
(+1.65V)
V
CM
V
IN+
V
IN–
INPUT
( 0.5V)
R3
R
R
R
R
R
R2
R2
R3
15pF
(R3)/2
OP191GP
OPA642
OPA642
V
CM
V
IN+
V
IN–
–
+
–
+
–
+
+
51W
51W
51W
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