PI5A127 データシートの表示（PDF） - Pericom Semiconductor
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PI5A127 Datasheet PDF : 7 Pages
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PI5A127
Dual,Wide Bandwidth Analog Switch
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Test Circuits/Timing Diagrams
+5V
Switch
Input +3V*
NO
or NC
V+
COM
Logic
Input
IN
GND
RL
100ohm
VOUT
CL
15pF
Logic +3V
Input
0V
Switch
Output
0V
CL INCLUDES FIXTURE AND STRAY CAPACITANCE
( ) VOUT = VNO
RL
RL + RON
Figure 1. Switching Time
50%
tr <20ns
tf <20ns
VOUT
90%
tOFF
90%
tON
LOGIC INPUT WAVEFORMS INVERTED FOR
SWITCHES THAT HAVE OPPOSITE LOGIC
* 1.5V FOR 3.3V SUPPLY
VGEN
Logic
Input
COM
.1μF
+5V
V+
NO or
NC
IN
GND
VOUT
CL
1nF
VOUT
IN OFF
OFF
IN
ON
ON
Q = (ΔVOUT)(CL)
ΔVOUT
OFF
OFF
Figure 2. Charge Injection
5
PS8328E 01/26/06
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