MAX381 Maxim, MAX381 Datasheet - Page 9

• Manufacturer Part Number: MAX381
• Description: The MAX381/MAX383/MAX385 are precision, low-voltage analog switches
• Manufacturer: Maxim

Figure 2. Switching-Time Test Circuit
Figure 3. Break-Before-Make Test Circuit (MAX383 only)
Figure 4. Charge-Injection Test Circuit
______________________________________________Test Circuits/Timing Diagrams
LOGIC
INPUT
SWITCH
OUTPUT 1
SWITCH
OUTPUT 2
LOGIC
INPUT
SWITCH
OUTPUT
V
OUT
IN
+3V
0V
0V
0V
LOGIC INPUT WAVEFORM IS INVERTED FOR
SWITCHES THAT HAVE THE OPPOSITE LOGIC
SENSE CONTROL.
V
OUT2
+3V
0V
0V
ON
V
OUT1
Precision, Low-Voltage Analog Switches
_______________________________________________________________________________________
t
50%
D
V
V
V
t
OUT
OUT
ON
OUT
50%
0.9 x V
0.9 x V
Q = ( V
OUT
OFF
OUT
OUT
t
OFF
t
t
r
f
) (C
t
< 20ns
< 20ns
D
L
)
0.9 x V
0.9 x V
OUT
OUT
ON
V
V
LOGIC
INPUT
COM
COM
V
V
COM
COM
= +3V (for t
= -3V (for t
LOGIC
INPUT
C
LOGIC 0 INPUT
= +3V
= +3V
L
INCLUDES FIXTURE AND STRAY CAPACITANCE.
FOR LOAD CONDITIONS, SEE Electrical Characteristics.
C
OFF
ON
L
)
INCLUDES FIXTURE AND STRAY CAPACITANCE.
)
COM
COM
IN
GND
0V
R
REPEAT TEST FOR EACH SWITCH
GEN
V
COM
IN
GEN
GND
0V
COM
+5V
-5V
GND
V-
0V
V+
NC
NO
NC or NO
+5V
-5V
V+
V-
R
L2
V
NC or NO
OUT2
V
-5V
+5V
V+
OUT
V-
R
C
R
C
L
L
L
L
= 1000
= V
= 35pF
= 1000
= 35pF
C
L2
COM
V
OUT
R
L1
(
R
V
L
MAX383
OUT1
MAX381
MAX383
MAX385
+ R
R
C
1.0nF
L
L
ON
MAX381
MAX383
MAX385
V
OUT
C
)
L1
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