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

♦ +2V to +12V Single Supply

±2V to ±6V Dual Supplies

♦ 100Ω Signal Paths with ±5V Supplies

♦ Low Power Consumption, <1µW

♦ 4 Separately Controlled SPST Switches

♦ Rail-to-Rail Signal Handling

♦ Pin Compatible with Industry-Standard

DG211/DG212/DG213

♦ >2kV ESD Protection per Method 3015.7

♦ 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/TSSOP

MAX4522

LOGIC

SWITCH

0

1

OFF

ON

TOP VIEW

DIP/SO/QSOP/TSSOP

MAX4521

LOGIC

SWITCH

0

1

ON

OFF

DIP/SO/QSOP/TSSOP

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 6; 7/07

Ordering Information

Ordering Information continued at end of data sheet.

*Contact factory for dice specifications.

**EP = Exposed pad.

For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642,

or visit Maxim’s website at www.maxim-ic.com.

Pin Configurations continued at end of data sheet.

PART

TEMP RANGE

PIN-

PACKAGE

PKG

CODE

MAX4521CPE

0

°C to +70°C 16 Plastic DIP

P16-1

MAX4521CSE

0

°C to +70°C 16 Narrow SO

S16-2

MAX4521CEE

0

°C to +70°C 16 QSOP

E16-4

MAX4521CUE

0

°C to +70°C 16 TSSOP

U16-2

MAX4521CGE

0

°C to +70°C 16 QFN-EP**

G1644-1

MAX4521C/D

0

°C to +70°C

Dice*

—