Datasheet

MAX320/MAX321/MAX322
Precision, Dual-Supply, SPST
Analog Switches
6 _______________________________________________________________________________________
V
GEN
NC
or NO
C
L
V
OUT
-5V
V-
V+
V
OUT
IN
OFF
ON
OFF
∆V
OUT
Q = (∆V
OUT
)(C
L
)
COM
IN DEPENDS ON SWITCH CONFIGURATION;
INPUT POLARITY DETERMINED BY SENSE OF SWITCH.
OFF
ON
OFF
IN
V
IN
+5V
R
GEN
IN
MAX320
MAX321
MAX322
Figure 4. Charge Injection
t
r
< 20ns
t
f
< 20ns
50%
LOGIC
INPUT
V-
-5V
R
L
300Ω
NO
or NC
C
L
INCLUDES FIXTURE AND STRAY CAPACITANCE.
V
OUT
= V
COM (
R
L
)

R
L
+ R
ON
SWITCH
INPUT
IN
t
OFF
0V
COM
SWITCH
OUTPUT
0.9 x V
0UT
0.9 x 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
+5V
V
OUT
V
COM

MAX320
MAX321
MAX322
50%
0.9 x V
0UT1
0V
LOGIC
INPUT
SWITCH
OUTPUT 2
(V
OUT2
)
0V
0.9 x V
OUT2
t
D
t
D
LOGIC
INPUT
V-
-5V
R
L2
300Ω
C
L
INCLUDES FIXTURE AND STRAY CAPACITANCE.
COM2
IN
COM1
V
OUT2
V+
+5V
C
L2
35pF
V
COM1
= +3V

R
L1
300Ω
V
OUT1
C
L1
35pF
NO1
NC2
SWITCH
OUTPUT 1
(V
OUT1
)
MAX322
V
COM2
= +3V
Figure 2. Switching Time
Figure 3. Break-Before-Make Interval (MAX322 only)
______________________________________________Test Circuits/Timing Diagrams