MAX4066 查看數據表（PDF） - Maxim Integrated

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MAX4066

Low-Cost, Low-Voltage, Quad, SPST, CMOS Analog Switches

Maxim Integrated 

Low-Cost, Low-Voltage, Quad, SPST,

CMOS Analog Switches

______________________________________________________________Pin Description

PIN

DIP/SO

QSOP

NAME

1, 3, 8, 11 1, 4, 9, 13 NO1–NO4

2, 4, 9, 10 2, 5, 10, 12 COM1–COM4

—

3, 11

N.C.

13, 5, 6, 12 15, 6, 7, 14

IN1–IN4

7

8

GND

14

16

V+

FUNCTION

Analog Switch Normally Open Terminal (bidirectional)

Analog Switch Common Terminal (bidirectional)

Not internally connected

Logic Control Inputs

Ground

Positive Supply Voltage

__________Applications Information

Overvoltage Protection

Proper power-supply sequencing is recommended for

all CMOS devices. Do not exceed the absolute maxi-

POSITIVE SUPPLY

mum ratings, because stresses beyond the listed rat-

ings may cause permanent damage to the devices.

Always sequence V+ on first, followed by the logic

MAX4066

V+

MAX4066A

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

two small signal diodes in series with supply pins for

overvoltage protection (Figure 1). Adding diodes

reduces the analog signal range to 1V below V+ and

NO

COM

1V above GND, but low switch resistance and low leak-

age characteristics are unaffected. Device operation is

unchanged, and the difference between V+ and GND

Vg

should not exceed 17V.

Figure 1. Overvoltage Protection Using Two External Blocking

Diodes

_______________________________________________________________________________________ 7

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