Precision, CMOS Analog Switches
MAX317/MAX318/MAX319
______________________________________Test Circuits/Timing Diagrams (continued)
LOGIC
INPUT
+3V
50%
0V
VCOM
+10V
VO1
0.9VO
IN1, IN2
VO2
0.9V0
tD
tD
LOGIC
INPUT
NC
NO
+5V
VL
+15V
V+
COM
MAX319
V
O
R
L
300Ω
C
L
35pF
SWITCH
OUTPUT 1
0V
VCOM
GND
V-
-15V
SWITCH
OUTPUT 2
V
0
C
L
INCLUDES FIXTURE AND STRAY CAPACITANCE.
Figure 4. MAX319 Break-Before-Make Test Circuit
+5V
∆V
O
+15V
V+
MAX317
MAX318
MAX319
VO
CL
10nF
VO
IN
OFF
ON
OFF
V GEN
COM
NC OR
NO
V-
GND
IN
OFF
ON
Q = (∆V O )(C L )
OFF
-15V
V
IN
= +3V
IN DEPENDS ON SWITCH CONFIGURATION;
INPUT POLARITY DETERMINED BY SENSE OF SWITCH.
Figure 5. Charge-Injection Test Circuit
8
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