PS391ESEE Datasheet, PDF (11/12 Pages) Pericom Semiconductor Corporation – Precision, Quad, SPST, Analog Switches

PS391/PS392/PS393
Precision, Quad, SPST Analog Switches
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Test Circuits/Timing Diagrams (continued)
+5V
10nF
Signal
Generator 0dBm
V+
COM
Analyzer
COM
R_L
NC
or NO
GND
IN
V-
-5V ^10nF
Figure 4. Off Isolation
0V or
2.4V
+5V
10nF
Signal
Generator 0dBm
V+
COM1
N01
0V or
IN1
2.4V
Analyzer
COM
R_L
N02
GND
IN2
COM2
V-
-5V ^10nF
50Ω
0V or
2.4V
NC
Figure 5. Crosstalk
+5V
10nF
Capacitance
Meter
f = 1kHz
V+
COM
NC
or NO
GND
IN 0V or
2.4V
V-
-5V ^10nF
Figure 6. Channel-Off Capacitance
Applications
As illustrated in Figure 8, PS391 can be used to insert various
capacitors (C1, C2) and set proper RC times for integration. The
resistors R1 and R2 set initial gain. The RIN resistor x C1 or C2 sets
the RC time. The reset switch discharges the hold capacitor
through RIN.
Capacitance
Meter
f = 1kHz
+5V
10nF
V+
COM
NC
or NO
GND
IN
EN
0V or
2.4V
Figure 7. Channel-On Capacitance
Figure 8. Programmable Integrator and Sample/Hold
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PS8168E 09/16/02