DG9424/9425/9426
Vishay Siliconix
TEST CIRCUITS
V
L
V+
V
O
R
g
V
L
COM
IN
GND
V-
IN
X
V-
V
IN
= 0 - V+
V+
NO or NC
V
OUT
C
L
10 nF
OFF
ON
Q =
DV
O
x C
L
OFF
IN
X
OFF
ON
OFF
DV
O
V
g
IN
X
dependent on switch configuration Input polarity determined
by sense of switch.
FIGURE 4.
Charge Injection
C
V
L
V+
C
V+
COM
1
50
W
V
S
R
g
= 50
W
0V, 2.4 V
V
L
NO
1
IN
1
NO
2
NC
IN
2
GND
V
OUT
V
IN
COM
2
R
L
V-
C
V
OUT
0V, 2.4 V
X
TALK
Isolation = 20 log
C = RF bypass
V-
FIGURE 5.
Crosstalk
V
L
C
V
L
NO or NC
V+
V+
C
V
L
V
OUT
C
V
L
V+
V
IN
R
g
= 50
W
0V, 2.4 V
COM
C
V+
IN
R
L
50
W
GND
V-
C
0 V, 2.4 V
IN
COM
Meter
HP4192A
Impedance
Analyzer
or Equivalent
C
NO or NC
V-
GND
Off Isolation = 20 log
C = RF Bypass
V
OUT
V
IN
V-
V-
FIGURE 6.
Off Isolation
FIGURE 7.
Source/Drain Capacitances
Document Number: 71807
S-31267—Rev. C, 16-Jun-03
www.vishay.com
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