Datasheet

MAX4645/MAX4646
Fast, Low-Voltage, 2.5Ω, SPST,
CMOS Analog Switches
_______________________________________________________________________________________ 7
V
GEN
GND
NO
C
L
V
OUT
V+
V
OUT
∆V
OUT
Q = (∆V
OUT
)(C
L
)
COM
OFF
ON
OFF
IN
V
IN
V+
R
GEN
IN
MAX4645
MAX4646
Figure 3. Charge Injection
t
r
< 5ns
t
f
< 5ns
50%
0
LOGIC
INPUT
R
L
300Ω
NO
GND
C
L
INCLUDES FIXTURE AND STRAY CAPACITANCE.
V
OUT
= V
COM (
R
L
)
R
L
+ R
ON
SWITCH
INPUT
IN
V+
t
OFF
0
COM
SWITCH
OUTPUT
0.9 × V
0UT
0.9 × V
OUT
t
ON
V
OUT
SWITCH
OUTPUT
LOGIC
INPUT
LOGIC INPUT WAVEFORMS INVERTED FOR SWITCHES
THAT HAVE THE OPPOSITE LOGIC SENSE.
V+
C
L
35pF
V+
V
OUT
MAX4645
MAX4646
V
COM
Figure 2. Switching Time
Test Circuits/Timing Diagrams