MAX320 データシートの表示（PDF） - Maxim Integrated
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MAX320 Datasheet PDF : 8 Pages
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Precision, Dual-Supply, SPST
Analog Switches
______________________________________________Test Circuits/Timing Diagrams
MAX320
MAX321
MAX322
SWITCH
INPUT
VCOM
COM
IN
+5V
V+
NO
or NC
SWITCH
OUTPUT
VOUT
RL
CL
300Ω 35pF
LOGIC
V-
INPUT
-5V
CL INCLUDES FIXTURE AND STRAY CAPACITANCE.
( ) VOUT = VCOM
RL
RL + RON
Figure 2. Switching Time
LOGIC
INPUT
50%
tr < 20ns
tf < 20ns
SWITCH 0V
OUTPUT
tOFF
VOUT 0.9 x V0UT
tON
0.9 x VOUT
LOGIC INPUT WAVEFORMS INVERTED FOR SWITCHES
THAT HAVE THE OPPOSITE LOGIC SENSE.
MAX322
+5V
VCOM1 = +3V
VCOM2 = +3V
LOGIC
INPUT
COM1
COM2
IN
V+
NO1
NC2
V-
-5V
VOUT2
RL2
300Ω
CL2
35pF
CL INCLUDES FIXTURE AND STRAY CAPACITANCE.
Figure 3. Break-Before-Make Interval (MAX322 only)
VOUT1
RL1
CL1
300Ω
35pF
LOGIC
INPUT
SWITCH
OUTPUT 1
(VOUT1) 0V
SWITCH
OUTPUT 2
(VOUT2)
0V
50%
0.9 x V0UT1
0.9 x VOUT2
tD
tD
MAX320
MAX321
MAX322 RGEN
COM
VGEN
+5V
V+
NC
or NO
IN V-
-5V
VIN
VOUT
CL
VOUT
IN
OFF
∆VOUT
OFF
ON
ON
OFF
OFF
IN
Q = (∆VOUT)(CL)
IN DEPENDS ON SWITCH CONFIGURATION;
INPUT POLARITY DETERMINED BY SENSE OF SWITCH.
Figure 4. Charge Injection
6 _______________________________________________________________________________________
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