ps391 Pericom Semiconductor Corporation, ps391 Datasheet - Page 11

• Manufacturer Part Number: ps391
• Description: Precision, Quad, Spst, Analog Switches
• Manufacturer: Pericom Semiconductor Corporation

1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 1 2 3 4 5 6 7 8 9 0 1 2
Test Circuits/Timing Diagrams (continued)
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 R
the RC time. The reset switch discharges the hold capacitor
through R
Capacitance
Signal
Generator 0dBm
f = 1kHz
Analyzer
Meter
IN
Figure 8. Programmable Integrator and Sample/Hold
.
R
Figure 6. Channel-Off Capacitance
L
COM
Figure 4. Off Isolation
10nF
or NO
COM
NC
10nF
or NO
COM
NC
GND
GND
+5V
V+
+5V
V+
IN
resistor x C1 or C2 sets
-5V
V-
-5V
IN
V-
10nF
IN
10nF
0V or
2.4V
0V or
2.4V
1 1
Capacitance
Signal
Generator 0dBm
Analyzer
f = 1kHz
Meter
0V or
2.4V
R
Figure 7. Channel-On Capacitance
L
Precision, Quad, SPST Analog Switches
COM
Figure 5. Crosstalk
10nF
COM1
N02
IN1
GND
10nF
or NO
COM
NC
+5V
V+
GND
+5V
V+
-5V
V-
10nF
COM2
PS391/PS392/PS393
N01
IN2
EN
IN
NC
0V or
PS8168E
2.4V
50
0V or
2.4V
09/16/02