參數(shù)資料
型號: DG211
廠商: Intersil Corporation
英文描述: SPST 4-Channel Analog Switches
中文描述: 四路SPST、CMOS模擬開關(guān)
文件頁數(shù): 7/8頁
文件大?。?/td> 148K
代理商: DG211
DG211B/212B
Vishay Siliconix
Document Number: 70040
S-52433—Rev. G, 06-Sep-99
www.siliconix.com FaxBack 408-970-5600
7
FIGURE 6.
Sample-and-Hold
LM101A
+15 V
–15 V
30 pF
+15 V
–15 V
V–
DG211B
50 pF
1000 pF
J202
J500
J507
+15 V
2N4400
–15 V
V
IN
V
OUT
1 k
200 W
5 M
5.1 M
Aquisition Time
Aperature Time
Sample to Hold Offset
Droop Rate
= 25 s
= 1 s
= 5 mV
= 5 mV/s
Logic Input
Low = Sample
High = Hold
+
V
L
V+
+ 5 V
f
C1
f
C2
TTL
Control
150 pF
1500 pF
+15 V
DG211B
GND
30 pF
LM101A
+15 V
–15 V
Frequency – Hz
1
10
100
1 k
10 k
100 k
1 M
–40
0
160
120
80
V
f
Select
f
Select
f
Select
f
Select
R
1
= 10 k
R
2
= 10 k
R
3
= 1 M
V
OUT
V
1
V–
C
4
C
3
C
2
C
1
f
L1
f
C4
f
L2
f
L3
f
L4
A
L
(Voltage Gain Below Break Frequency) =
= 100 (40 dB)
R
3
R
1
f
C
(Break Frequency) =
1
2 R
3
C
X
1
2 R
1
C
X
f
L
(Unity Gain Frequency) =
Max Attenuation =
r
DS(on)
10 k
–47 dB
0.015 F
0.15 F
FIGURE 7.
Active Low Pass Filter with Digitally Selected Break Frequency
–15 V
+
f
C3
40
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