PS393CSE データシートの表示（PDF） - Pericom Semiconductor

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PS393CSE

Precision, quad, SPST, analog switch

Pericom Semiconductor 

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

RL

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

RL

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

11

PS8168E 09/16/02

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