MAX4647 Maxim, MAX4647 Datasheet - Page 7

• Manufacturer Part Number: MAX4647
• Description: The MAX4647/MAX4648 are dual-supply single-pole/single-throw (SPST) switches
• Manufacturer: Maxim

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