Dual, 5

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7

Pin Description

Applications Information

Operation with Supply Voltages

Other than ±15V

The MAX4621/MAX4622/MAX4623 switches operate with

±4.5V to ±18V bipolar supplies and a +4.5V to +36V sin-

gle supply. In either case, analog signals ranging from

V+ to V- can be switched. The

Typical Operating

Characteristics graphs show the typical on-resistance

variation with analog signal and supply voltage.

Overvoltage Protection

Proper power-supply sequencing is recommended for all

CMOS devices. It is important not to exceed the absolute

maximum ratings because stresses beyond the listed rat-

ings may cause permanent damage to the devices.

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

add two small signal diodes in series with the supply pins

Adding diodes reduces the analog signal range to 1V

below V+ and 1V above V-, but low switch resistance and

low leakage characteristics are unaffected. The differ-

ence between V+ and V- should not exceed +44V.

Negative Supply Voltage

14

Ground

13

Logic Supply-Voltage Input

12

Positive Supply-Voltage Input

11

Not internally connected

2, 7

Switch Common Terminal

1, 3, 6, 8

Negative Supply Voltage

Input

14

Ground

13

Positive Supply-Voltage Input

11

Not internally connected

2, 7

Switch Common Terminal

1, 3, 6, 8

Ground

14

Negative Supply Voltage

Input

13

Logic Supply-Voltage Input

12

Positive Supply-Voltage Input

11

Digital Logic Inputs

10, 15

Switch Normally Open

Terminal

9, 16

Not internally connected

2–7

Switch Common Terminal

1, 8

FUNCTION

PIN

NO_

V+

COM_

V-

*

*

*

*

MAX4621

MAX4622

MAX4623

Figure 1. Overvoltage Protection Using Blocking Diodes

*INTERNAL PROTECTION DIODES

V-

GND

V+

N.C.

COM_

V-

GND

V+

N.C.

COM_

V-

GND

V+

IN2, IN1

NO2, NO1

N.C.

COM1,

COM2

NAME

NC_, NO_

Switch Normally Closed/Open

Terminal

4, 5, 9, 16

NO_

Switch Normally Open

Terminal

4, 5, 9, 16

Logic Supply-Voltage Input

12

IN2, IN1

Digital Logic Inputs

10, 15

IN2, IN1

Digital Logic Inputs

10, 15

MAX4621

MAX4622

MAX4623