參數(shù)資料
型號: DG201BAZ/883
廠商: VISHAY SILICONIX
元件分類: 多路復(fù)用及模擬開關(guān)
英文描述: QUAD 1-CHANNEL, SGL POLE SGL THROW SWITCH, QCC20
封裝: LCC-20
文件頁數(shù): 9/10頁
文件大?。?/td> 104K
代理商: DG201BAZ/883
www.vishay.com
8
Document Number: 70037
S11-0179-Rev. I, 07-Feb-11
Vishay Siliconix
DG201B, DG202B
APPLICATIONS
Figure 6. Sample-and-Hold
LM101A
+ 15 V
- 15 V
30 pF
+ 15 V
- 15 V
V+
V-
DG201B
50 pF
1000 pF
J202
J500
J507
+ 15 V
2N4400
- 15 V
VIN
VOUT
1 k
Ω
200
Ω
5 M
Ω
5.1 M
Ω
Aquisition Time
= 25 s
Aperature Time
= 1 s
Sample to Hold Offset
= 5 mV
Droop Rate
= 5 mV/s
Logic Input
Low = Sample
High = Hold
-
+
Figure 7. Active Low Pass Filter with Digitally Selected Break Frequency
TTL
Control
150 pF
1500 pF
+ 15 V
DG201B
GND
30 pF
LM101A
+ 15 V
- 15 V
1
10
100
1K
10K
100K
1M
- 40
0
160
120
80
V
oltage
Gain
-
dB
fC4
Select
fC3
Select
fC2
Select
fC1
Select
R1 = 10 kΩ
R2 = 10 kΩ
R3 = 1 MΩ
VOUT
V1
V-
C4
C3
C2
C1
AL (Voltage Gain Below Break Frequency) =
= 100 (40 dB)
R3
R1
fC (Break Frequency) =
1
2
πR3CX
1
2
πR1CX
fL (Unity Gain Frequency) =
Max. Attenuation =
RDS(on)
10 k
Ω
- 47 dB
0.015 F
0.15 F
- 15 V
-
+
40
f - Frequency (Hz)
fL1
fL2
fL3
fL4
fC1
fC2
fC3
fC4
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