dg641 Vishay, dg641 Datasheet - Page 7

• Manufacturer Part Number: dg641
• Description: Low On-resistance Wideband/video Switches
• Manufacturer: Vishay

Document Number: 70058
S-52433—Rev. E, 06-Sep-99
V
g
3 V
3 V
3 V
R
S
IN
g
GND
+15 V
V+
S
IN
GND
–3 V
V–
D
+15 V
V
V+
S
R
g
–3 V
V–
= 50
R
1 k
D
L
0V, 2.4 V
C
35 pF
L
C
1000 pF
FIGURE 3. Charge Injection
L
FIGURE 2. Switching Time
C
FIGURE 4. Off Isolation
V
IN
V
S
O
O
GND
Off Isolation = 20 log
+15 V
V+
–3 V
Switch
Output
V–
Logic
Input
D
3 V
0
C
V
V
The charge injection in coulombs is Q = C
S
O
V
IN
O
V
O
= measured voltage error due to charge injection
X
R
ON
L
90%
V
50%
O
www.vishay.com FaxBack 408-970-5600
V
t
ON
O
DG641/642/643
Vishay Siliconix
OFF
L
x V
O
t
t
r
f
t
ON
OFF
<20 ns
<20 ns
90%
4-7