Datasheet

ADG1204
Rev. B | Page 13 of 16
SD
V
S
GND
R
S
SW OFF
Q
INJ
= C
L
× ΔV
OUT
SW OFF
SW ON
SW OFF
SW OFF
A2A1
EN
V
DD
V
SS
V
DD
DECODER
V
SS
V
OUT
V
OUT
V
IN
V
IN
ΔV
OUT
C
L
1nF
04779-026
SW ON
Figure 27. Charge Injection
V
OUT
50Ω
NETWORK
ANALYZER
R
L
50Ω
S
D
50Ω
OFF ISOLATION = 20 log
V
OUT
V
S
V
S
V
DD
V
SS
0.1µF
V
DD
0.1µF
V
SS
GND
04779-027
Figure 28. Off Isolation
V
OUT
50Ω
NETWORK
ANALYZER
R
L
50Ω
S
D
INSERTION LOSS = 20 log
V
OUT
WITH SWITCH
V
OUT
WITHOUT SWITCH
V
S
V
DD
V
SS
0.1µF
V
DD
0.1µF
V
SS
GND
04779-028
Figure 29. Bandwidth
CHANNEL-TO-CHANNEL CROSSTALK = 20 log
V
OUT
GND
S1
D
S2
V
OUT
NETWORK
ANALYZER
R
L
50Ω
R
50Ω
V
S
V
S
V
DD
V
SS
0.1µF
V
DD
0.1µF
V
SS
04779-029
Figure 30. Channel-to-Channel Crosstalk
V
OUT
R
S
AUDIO PRECISION
R
L
10kΩ
IN
V
IN
S
D
V
S
V p-p
V
DD
V
SS
0.1µF
V
DD
0.1µF
V
SS
GND
04779-030
Figure 31. THD + Noise