DG441/442
Vishay Siliconix
TEST CIRCUITS
+ 15 V
Logic
Input
D
R
L
1 kΩ
V-
Switch
Output
Note:
0V
t
ON
Logic input waveform is inverted for DG442.
3V
50 %
0V
V
O
C
L
35 pF
Switch
Input
V
S
V
O
80 %
t
OFF
80 %
50 %
t
r
< 20 ns
t
f
< 20 ns
V+
10 V
S
IN
3V
GND
- 15 V
C
L
(includes fixture and stray capacitance)
Figure 2. Switching Time
+ 15 V
ΔV
O
R
g
V+
S
IN
D
C
L
1 nF
V-
V
O
V
O
IN
X
OFF
ON
OFF
(DG441)
OFF
ON
Q =
ΔV
O
x C
L
OFF
3V
GND
IN
X
- 15 V
(DG442)
Figure 3. Charge Injection
C = 1 mF tantalum in parallel with 0.01 mF ceramic
+ 15 V
C
+ 15 V
V+
V
S
R
g
= 50
Ω
0 V, 2.4 V
NC
0 V, 2.4 V
S
2
IN
2
GND
V-
C
- 15 V
- 15 V
X
TA LK
Isolation = 20 log
C = RF bypass
V
S
V
O
Off Isolation = 20 log
V
S
V
O
D
2
V
O
R
L
S
1
IN
1
D
1
50
Ω
V+
C
V
S
R
g
= 50
Ω
0 V, 2.4 V
S
D
V
O
IN
GND
V-
C
R
L
Figure 4. Crosstalk
+ 15 V
C
V+
S
Meter
0 V, 2.4 V
IN
D
GND
V-
C
Figure 5. Off Isolation
HP4192A
Impedance
Analyzer
or Equivalent
- 15 V
Figure 6. Source/Drain Capacitances
Document Number: 70053
S-71241–Rev. I, 25-Jun-07
www.vishay.com
7
VISHAY [ VISHAY TELEFUNKEN ]
