Precision, CMOS Analog Switches
_____________________________________________________Test Circuits/Timing Diagrams
MAX317/MAX318/MAX319
+5V
LOGIC
INPUT
+3V
50%
0V
t
R
< 20ns
t
F
< 20ns
SWITCH
INPUT
t
OFF
IN
V
O
SWITCH
OUTPUT
0V
t
ON
0.9V0
0.9V0
LOGIC
INPUT
GND
VL
COM
+15V
V+
NC
OR NO
MAX317
MAX318
SWITCH
OUTPUT
V
O
R
L
300Ω
C
L
35pF
SWITCH V
COM
INPUT
V-
-15V
C
L
INCLUDES FIXTURE AND STRAY CAPACITANCE.
R
L
V
O
= V
COM
R
L
+ R
ON
LOGIC INPUT WAVEFORMS INVERTED FOR SWITCHES
THAT HAVE THE OPPOSITE LOGIC SENSE.
(
)
Figure 2. MAX317/MAX318 Switching-Time Test Circuit
MAX319
+15V
LOGIC
INPUT
+3V
50%
0V
NO
t
TRANS
V
COM
SWITCH V
01
OUTPUT
V
COM
V
02
t
TRANS
0.8V
02
0.8V
01
LOGIC
INPUT
IN
GND
V-
-15V
C
L
INCLUDES FIXTURE AND STRAY CAPACITANCE.
R
L
1000Ω
C
L
35pF
t
R
< 20ns
t
F
< 20ns
NC V+
+5V
VL
COM
V
O
Figure 3. MAX319 Transition Time
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7
MAXIM [ MAXIM INTEGRATED PRODUCTS ]
