Datasheet

MAX4620/MAX4630/MAX4640
±15kV ESD-Protected, Low-Voltage, Quad,
SPST, CMOS Analog Switches
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Detailed Description
The MAX4620/MAX4630/MAX4640 are quad SPST
CMOS analog switches with circuitry providing ±15kV
ESD protection on the NO and NC pins. The CMOS
switch construction provides rail-to-rail signal handling
while consuming virtually no power. Each of the four
switches is independently controlled by a TTL/CMOS-
level-compatible digital input.
Applications Information
Do not exceed the absolute maximum ratings because
stresses beyond the listed ratings may cause perma-
nent damage to the device.
Proper power-supply sequencing is recommended for
all CMOS devices. Always sequence V+ on first, fol-
lowed by the logic inputs, NO/NC, or COM.
Operating Considerations for
High-Voltage Supply
The MAX4620/MAX4630/MAX4640 are capable of
+12V single-supply operation with some precautions.
The absolute maximum rating for V+ is 13V (referenced
to GND). When operating near this region, bypass V+
with a minimum 0.1µF capacitor to ground as close to
the IC as possible.
V
OUT
∆V
OUT
Q = (∆V
OUT
)(C
L
)
OFF
ON
OFF
IN
MAX4620
MAX4630
MAX4640
V
GEN
GND
C
L
V
OUT
V+
COM_
V
IN
V+
R
GEN
IN
NO_/NC_
Figure 4. Charge Injection
Figure 5. Crosstalk
SIGNAL
GENERATOR 0dBm
V+
10nF
ANALYZER
NO2
R
L
GND
COM1
0 OR 2.4V
IN1
NO1
50Ω
COM2
IN2
0 OR
2.4V
NC
V+
MAX4620
MAX4630
MAX4640