MAX4633 Maxim, MAX4633 Datasheet - Page 11

• Manufacturer Part Number: MAX4633
• Description: The MAX4631/MAX4632/MAX4633 high-voltage, dual analog switches are pin compatible with the industry-standard DG401/DG403/DG405
• Manufacturer: Maxim

In 50Ω systems, signal response is reasonably flat up
to 30MHz (see Typical Operating Characteristics ).
Above 30MHz, the on-response has several minor
peaks that are highly layout dependent. The problem
with high-frequency operation is not turning the switch
on, but turning it off. The off-state switch acts like a
capacitor and passes higher frequencies with less
Figure 2. Switch Turn-On/Turn-Off Times
Figure 3. MAX4631 Break-Before-Make Interval
V- IS CONNECTED TO GND (0V) FOR SINGLE-SUPPLY OPERATION.
V- IS CONNECTED TO GND (0V) FOR SINGLE-SUPPLY OPERATION.
V
IN_
V
IN_
50
50
IN_
IN_
High-Frequency Performance
______________________________________________________________________________________
IN_
V+
V+
MAX4631
MAX4631
MAX4632
MAX4633
GND
GND
V+
V+
NO_ OR NC_
V-
V-
COM_
COM_
COM_
NO_
NC_
V-
V-
R
R
L
L
+10V
+10V
Fault-Protected, High-Voltage,
10pF
10pF
V
V
OUT
OUT
attenuation. At 10MHz, off-isolation is about -46dB in
50Ω systems, declining (approximately 20dB per
decade) as frequency increases. Higher circuit imped-
ance also diminishes off-isolation. Adjacent channel
attenuation is about 3dB above that of a bare IC socket
and is due entirely to capacitive coupling.
Dual Analog Switches
V
V
OUT
IN_
V
V
Test Circuits/Timing Diagrams
NO_
V
IN_
+10V
OUT
V+
0V
0V
, V
NC_
V+
0V
0V
t
OFF
50%
90%
50%
t
OPEN
80%
50%
90%
t
50%
ON
t
t
R
F
< 5ns
< 5ns
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