adg804 Analog Devices, Inc., adg804 Datasheet - Page 12

• Manufacturer Part Number: adg804
• Description: 0.5 ? Cmos 1.65 V To 3.6 V 4-channel Multiplexer
• Manufacturer: Analog Devices, Inc.

ADG804
OFF ISOLATION = 20 LOG
OFF ISOLATION = 20 LOG
*UNUSED CHANNELS TERMINATED WITH 50Ω TO GROUND
0.1µF
0.1µF
Sx*
GND
GND
S
V
V
V
V
DD
DD
DD
DD
D
D
Figure 25. Off Isolation
Figure 26. Bandwidth
50Ω
V
V
V
8
OUT
R
OUT
V
V
8
OUT
S
WITHOUT SWITCH
WITH SWITCH
GND
R
50Ω
DECODER
R
50Ω
ANALYZER
NETWORK
ANALYZER
NETWORK
L
50Ω
L
A1 A2
50Ω
V
V
V
V
DD
DD
OUT
OUT
V
V
S
EN
S
C
1nF
L
Figure 24. Charge Injection
V
Rev. 0 | Page 12 of 16
OUT
V
OUT
V
CHARGE INJECTION = ∆V
IN
SW OFF
∆V
CHANNEL-TO-CHANNEL CROSSTALK = 20 LOG
OUT
50Ω
V
S
ANALYZER
NETWORK
Q
50Ω
INJ
Figure 27. Channel-to-Channel Crosstalk
R
L
SW ON
= C
OUT
L
× C
× ∆V
L
OUT
50Ω
SW OFF
S1
S2
0.1µF
GND
V
V
V
DD
DD
OUT
V
S
D
V
OUT