_______________General Description

The MAX4521/MAX4522/MAX4523 are quad, low-volt-

age, single-pole/single-throw (SPST) analog switches.

On-resistance (100

Ω max) is matched between switch-

es to 4

Ω max, and is flat (12Ω max) over the specified

signal range. Each switch can handle rail-to-rail analog

signals. The off-leakage current is only 1nA at +25°C

and 10nA at +85°C.

The MAX4521 has four normally closed (NC) switches,

and the MAX4522 has four normally open (NO) switch-

es. The MAX4523 has two NC switches and two NO

switches.

These CMOS switches can operate with dual power

supplies ranging from ±2V to ±6V or a single supply

between +2V and +12V. They are fully specified for sin-

gle +2.7V operation.

All digital inputs have +0.8V and +2.4V logic thresh-

olds, ensuring TTL/CMOS-logic compatibility when

using ±5V or a single +5V supply.

________________________Applications

Battery-Operated Equipment

Data Acquisition

Test Equipment

Avionics

Audio Signal Routing

Networking

____________________________Features

o +2V to +12V Single Supply

±2V to ±6V Dual Supplies

o 100

Ω Signal Paths with ±5V Supplies

o Low Power Consumption, <1µW

o 4 Separately Controlled SPST Switches

o Rail-to-Rail Signal Handling

o Pin Compatible with Industry-Standard

DG211/DG212/DG213

o >2kV ESD Protection per Method 3015.7

o TTL/CMOS-Compatible Inputs with ±5V or

Single +5V Supply

Quad, Low-Voltage, SPST Analog Switches

________________________________________________________________

Maxim Integrated Products

1

SWITCHES SHOWN FOR LOGIC "0" INPUT

DIP/SO/QSOP

MAX4522

LOGIC

SWITCH

0

1

OFF

ON

TOP VIEW

DIP/SO/QSOP

MAX4521

LOGIC

SWITCH

0

1

ON

OFF

DIP/SO/QSOP

MAX4523

LOGIC

SWITCHES

1, 4

0

1

OFF

ON

SWITCHES

2, 3

ON

OFF

16

15

14

13

12

11

10

9

1

2

3

4

5

6

7

8

IN2

COM2

NC2

V+

V-

NO1

COM1

IN1

MAX4523

N.C.

NC3

COM3

IN3

IN4

COM4

NO4

GND

16

15

14

13

12

11

10

9

1

2

3

4

5

6

7

8

IN2

COM2

NC2

V+

V-

NC1

COM1

IN1

MAX4521

N.C.

NC3

COM3

IN3

IN4

COM4

NC4

GND

16

15

14

13

12

11

10

9

1

2

3

4

5

6

7

8

IN2

COM2

NO2

V+

V-

NO1

COM1

IN1

MAX4522

N.C.

NO3

COM3

IN3

IN4

COM4

NO4

GND

N.C. = NOT CONNECTED

_____________________Pin Configurations/Functional Diagrams/Truth Tables

19-1136; Rev 1; 1/97

PART

MAX4521CPE

MAX4521CSE

MAX4521CEE

0°C to +70°C

0°C to +70°C

0°C to +70°C

TEMP. RANGE

PIN-PACKAGE

16 Plastic DIP

16 Narrow SO

16 QSOP

______________Ordering Information

Ordering Information continued at end of data sheet.

*

Contact factory for dice specifications.

MAX4521C/D

0°C to +70°C

Dice*

TOP VIEW

For free samples & the latest literature: http://www.maxim-ic.com, or phone 1-800-998-8800.

For small orders, phone 408-737-7600 ext. 3468.