PS325CSA Ver la hoja de datos (PDF) - Pericom Semiconductor Corporation
Número de pieza
componentes Descripción
Fabricante
PS325CSA Datasheet PDF : 10 Pages
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PS323/PS324/PS325
Precision, Single Supply SPST Analog Switches
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Test Circuits/Timing Diagrams
VCOM = 3V
Logic
Input
COM
+5V
V+
NO
or NC
IN
GND
RL
1kohm
VOUT
CL
35pF
Logic +3V
Input
0V
Switch
Output
0V
50%
VOUT
90%
tON
tr <20ns
tf <20ns
tOFF
90%
CL INCLUDES FIXTURE AND STRAY CAPACITANCE
( ) VOUT = VCOM
RL
RL + RON
LOGIC INPUT WAVEFORMS INVERTED FOR
SWITCHES THAT HAVE OPPOSITE LOGIC
Figure 2. Switching Time
+3V
Logic
Input
V+
V+
NC
NO
IN
GND
VOUT
RL
300Ω
ohm
CL
35 pF
CLINCLUDES FIXTURE AND STRAY CAPACITANCE.
+3V
Logic
Input
50%
0V
Switch
Output 90%
90%
(VOUT)
0V
tD
Figure 3. Break-Before-Make Interval (PS325 only)
VGEN
RGEN COM
+5V
V+
NO or
NC
Logic
Input
IN
GND
VOUT
CL
1nF
VOUT
IN OFF
ON
∆VOUT
OFF
ON
OFF
IN
OFF
Q = (∆VOUT)(CL)
IN POLARITY DEPENDS ON NO OR NC SWITCH FUNCTION
Figure 4. Charge Injection
6
PS8188C 10/24/02
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