PS4066 Ver la hoja de datos (PDF) - Pericom Semiconductor

Número de pieza

componentes Descripción

Fabricante

PS4066

Low-Cost, Quad, SPST, CMOS Analog Switches

Pericom Semiconductor 

PS4066/PS4066A

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Pin Description

Applications Information

Overvoltage Protection

Proper power-supply sequencing is recommended for all CMOS

devices. Do not exceed the absolute maximum ratings, because

stresses beyond the listed ratings may cause permanent damage to

the devices. Always sequence V+ on first, and then the logic

inputs. If power-supply sequencing is not possible, add a small

signal diode or current limiting resistor in series with the supply

pin for overvoltage protection (Figure 1). Adding a diode reduces

the analog signal range, but low switch resistance and low leakage

characteristics are unaffected.

Test Circuits/Timing Diagrams

Figure 1. Overvoltage protection is accomplished using an exter-

nal blocking diode or a current limiting resistor .

Figure 2. Switching Times

Figure 3. Charge Injection

8

PS8184A 10/15/98

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