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| DG408L_08 Datasheet, PDF (11/12 Pages) Vishay Siliconix – Precision 8-Ch/Dual 4-Ch Low Voltage Analog Multiplexers | |||
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TEST CIRCUITS
Rg
Vg
Channel
Select
DG408L/409L
Vishay Siliconix
V+
V+
SX
EN
A0
A1
A2
GND
D
V-
V-
VO
CL
1 nF
Logic 3 V
Input
OFF
ON
OFF
0V
Switch
Output
ÎVO
ÎVO is the measured voltage due to charge transfer
error Q, when the channel turns off.
Q = CL x ÎVO
Figure 5. Charge Injection
V+
VIN
VS
Rg = 50 Ω
SX
V+
S8
A0
A1
A2
GND EN
D
V-
VO
RL
1 kΩ
V-
Off Isolation = 20 log
VOUT
VIN
Figure 6. Off Isolation
V+
VIN
S1
V+
VS
SX
Rg = 50 Ω
S8
A0
A1
A2
GND EN
D
V-
VO
RL
1 kΩ
V-
Crosstalk = 20 log
Figure 7. Crosstalk
VOUT
VIN
V+
VS
Rg = 50 Ω
S1
V+
A0
A1
A2
GND EN
D
V-
VO
RL
1 kΩ
V-
Insertion Loss = 20 log
VOUT
VIN
Figure 8. Insertion Loss
Channel
Select
V+
V+
A2
A1
A0
GND EN
S1
S8
D
V-
Meter
HP4192A
Impedance
Analyzer
or Equivalent
f = 1 MHz
V-
Figure 9. Source Drain Capacitance
Vishay Siliconix maintains worldwide manufacturing capability. Products may be manufactured at one of several qualified locations. Reliability data for Silicon
Technology and Package Reliability represent a composite of all qualified locations. For related documents such as package/tape drawings, part marking, and
reliability data, see http://www.vishay.com/ppg?71342.
Document Number: 71342
S-71241âRev. E, 25-Jun-07
www.vishay.com
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