Datasheet

MAX4647/MAX4648
25Ω SPST Analog Switches in SOT23-6
________________________________________________________________________________________ 7
IN 0 OR 3V
SIGNAL
GENERATOR
V+
C
ANALYZER
NC OR NO
R
L
GND
COM
C
V-
V-
V+
MAX4647
MAX4648
Figure 4. Off-Isolation Test Circuit
CAPACITANCE
METER
NC OR NO
COM
GND
C
V-
V-
IN
0 OR 3V
C
V+
f = 1MHz
V+
MAX4647
MAX4648
Figure 5. Channel-Off Capacitance Test Circuit
V
GEN
GND
NC OR
NO
C
L
V
O
V-
V-
V+
V
O
V
IN
OFF
ON
OFF
∆V
O
Q = (∆V
O
)(C
L
)
COM
V
IN
DEPENDS ON SWITCH CONFIGURATION;
INPUT POLARITY DETERMINED BY SENSE OF SWITCH.
OFF
ON
OFF
V
IN
V
IN
= +3V
V+
R
GEN
IN
MAX4647
MAX4648
Figure 3. Charge Injection Test Circuit