DG408, DG409
Vishay Siliconix
TEST CIRCUITS
+ 15 V
R
g
S
X
EN
A
0
Channel
Select
A
1
A
2
GND
V-
D
V
O
C
L
10 nF
Switch
Output
ΔV
O
ΔV
O
is the measured voltage due to charge transfer
error Q, when the channel turns off.
Q = C
L
x
ΔV
O
V+
Logic
Input
3V
OFF
0V
ON
OFF
- 15 V
Fig. 5 - Charge Injection
+ 15 V
V
IN
V
S
R
g
= 50
Ω
S
X
S
8
A
0
A
1
A
2
GND
EN
V-
R
L
1 kΩ
R
g
= 50
Ω
D
V
O
V+
V
S
V
IN
V+
+ 15 V
S
1
S
X
S
8
A
0
A
1
A
2
GND
D
V
O
EN
V-
R
L
1 kΩ
- 15 V
Off Isolation = 20 log
V
OUT
V
IN
- 15 V
Crosstalk = 20 log
V
OUT
V
IN
Fig. 6 - Off Isolation
Fig. 7 - Crosstalk
+ 15 V
+ 15 V
V
S
R
g
= 50
Ω
S
1
V+
A
2
V+
S
1
Meter
S
8
HP4192A
Impedance
Analyzer
or Equivalent
f = 1 MHz
A
0
A
1
A
2
GND
EN
V-
D
R
L
1 kΩ
V
O
Channel
Select
A
1
A
0
D
GND
EN
V-
- 15 V
- 15 V
Insertion Loss = 20 log
V
OUT
V
IN
Fig. 8 - Insertion Loss
Fig. 9 - Source Drain Capacitance
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Document Number: 70062
S11-0933-Rev. J, 16-May-11
This document is subject to change without notice.
THE PRODUCTS DESCRIBED HEREIN AND THIS DOCUMENT ARE SUBJECT TO SPECIFIC DISCLAIMERS, SET FORTH AT
www.vishay.com/doc?91000
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