Datasheet

DG444/DG445
Improved, Quad, SPST Analog Switches
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∆V
OUT
OFFONOFF
V
OUT
IN
DG444
IN
DG445
OFF OFFON
Q = ∆V
OUT
× C
L
-15V
V-
V+
INGND
S
+15V
R
GEN
V
GEN
V
IN
= +3V
C
L
V
OUT
V
L
+5V
D
DG444
DG445
Figure 3. Charge Injection
NETWORK
ANALYZER
SIGNAL
GENERATOR
R
GEN
= 50Ω
D
S
GND
R
L
10dBm
10nF
V+
+15V
IN
0V or +2.4V
V-
-15V
10nF
+5V
V
L
DG444
DG445
Figure 4. Off-Isolation Rejection Ratio
NETWORK
ANALYZER
SIGNAL
GENERATOR
R
GEN
= 50Ω
0V or +2.4V
IN
D
GND
R
L
10dBm
10nF
+15V
D
IN
S
NC
0V or +2.4V
50Ω
V-
-15V
10nF
+5V
S
V
L
V+
DG444
DG445
Figure 5. Crosstalk
CAPACITANCE
METER
D
S
GND
10nF
+15V
IN
0V or +2.4V
V-
-15V
10nF
f = 1MHz
+5V
V
L
V+
DG444
DG445
Figure 6. Source/Drain Off-Capacitance
D
S
GND
10nF
+15V
IN
0V or +2.4V
V-
-15V
10nF
V+
+5V
V
L
V
D
DG444
DG445
CAPACITANCE
METER
f = 1MHz
Figure 7. Source/Drain On-Capacitance