Datasheet

MAX4655–MAX4658
High-Current, 10 Ω , SPST, CMOS
Analog Switches
8 _______________________________________________________________________________________
t
R
< 20ns
t
F
< 20ns
50%
0
LOGIC
INPUT
V-
-15V
R
L
NC
OR NO
GND
C
L
INCLUDES FIXTURE AND STRAY CAPACITANCE.
V
O
= V
COM (
RL
)
R
L + RON
SWITCH
INPUT
IN
+3V
t
OFF
0
COM
SWITCH
OUTPUT
0.9V0 0.9V0
V
COM
t
ON
V
O
SWITCH
OUTPUT
SWITCH
INPUT
LOGIC
INPUT
LOGIC INPUT WAVEFORMS INVERTED FOR SWITCHES
THAT HAVE THE OPPOSITE LOGIC SENSE.
V+
C
L
35pF
+15V
V
O
MAX4655–
MAX4658
Figure 3. Switching Time
Test Circuits/Timing Diagrams
TTL/CMOS
LEVEL
SHIFTER
NC
OR
NO
V+
IN
GND
V-
COM
SENSOR
NO OR
NC
COM
Figure 2. Block Diagram
V
GEN
GND
NC OR
NO
C
L
1nF
V
O
-15V
V-
V+
V
O
IN
OFF
ON
OFF
ΔV
O
Q = (ΔV
O
)(C
L
)
COM
IN DEPENDS ON SWITCH CONFIGURATION;
INPUT POLARITY DETERMINED BY SENSE OF SWITCH.
OFF
ON
OFF
IN
V
IN
= +3V
MAX4655–
MAX4658
+15V
Figure 4. Charge Injection