General Description

The MAX398/MAX399 precision, monolithic, CMOS ana-

log multiplexers (muxes) offer low on-resistance (less

than 100

Ω), which is matched to within 6Ω between

channels and remains flat over the specified analog sig-

nal range (11

Ω max). They also offer low leakage over

temperature (NO off-leakage current less than 2.5nA at

+85°C) and fast switching speeds (transition time less

than 250ns). The MAX398 is an 8-channel device, and

the MAX399 is a dual 4-channel device.

The MAX398/MAX399 are fabricated with Maxim’s low-

voltage silicon-gate process. Design improvements yield

extremely low charge injection (less than 5pC) and guar-

antee electrostatic discharge protection (ESD) greater

than 2000V.

These muxes operate with a single +3V to +15V supply or

bipolar ±3V to ±8V supplies, while retaining CMOS-logic

input compatibility and fast switching. CMOS inputs pro-

vide reduced input loading. The MAX398/MAX399 are

pin compatible with the industry-standard DG408,

DG409, DG508A, and DG509A.

Applications

Sample-and-Hold Circuits

Automatic Test Equipment

Heads-Up Displays

Guidance and Control Systems

Military Radios

Communications Systems

Battery-Operated Systems

PBX, PABX

Audio Signal Routing

Low-Voltage Data-Acquisition Systems

Features

♦ Pin Compatible with Industry-Standard

DG408/DG409/DG508A/DG509A

♦ Guaranteed On-Resistance Match

Between Channels (< 6

Ω)

♦ Low On-Resistance (< 100Ω)

♦ Guaranteed Flat On-Resistance over Signal

Range (< 11

Ω)

♦ Guaranteed Low Charge Injection (< 5pC)

♦ NO Off-Leakage Current < 1nA at +85°C

♦ COM Off-Leakage Current < 2.5nA at +85°C

♦ ESD Protection > 2000V

♦ +3V to +15V Single-Supply Operation

±3V to ±8V Bipolar-Supply Operation

♦ Low Power Consumption (< 300µW)

♦ Rail-to-Rail Signal Handling

♦ TTL/CMOS-Logic Compatible

Precision, 8-Channel/Dual 4-Channel,

Low-Voltage, CMOS Analog Multiplexers

________________________________________________________________ Maxim Integrated Products

1

16

15

14

13

12

11

10

9

1

2

3

4

5

6

7

8

A1

A2

GND

V+

N01

V-

EN

A0

TOP VIEW

MAX398

NO5

NO6

NO7

NO8

*EP = EXPOSED PAD, CONNECT EP TO V+.

COM

N04

N03

N02

DIP/SO/QSOP

QFN

16

15

14

13

12

11

10

9

1

2

3

4

5

6

7

8

A1

GND

V+

NO1B

N01A

V-

EN

A0

MAX399

NO2B

NO3B

NO4B

COMB

COMA

N04A

N03A

N02A

DIP/SO/QSOP

N01A

V-

N02A

N03A

N01B

V+

N02B

N03B

16

15

14

12

11

10

1

2

3

9

4

13

56

7

8

MAX399

QFN

N01

V-

N02

N03

V+

GND

N05

N06

16

15

14

12

11

10

1

2

3

9

4

13

56

7

8

MAX398

*EP

*EP

Pin Configurations

19-0299; Rev. 6; 6/07

Ordering Information

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.

PART

TEMP RANGE

PIN-

PACKAGE

PKG

CODE

MAX398CGE

0

°C to +70°C

16 QFN-EP*

G1655-3

MAX398CEE

0

°C to +70°C

16 QSOP

E16-1

MAX398CSE

0

°C to +70°C

16 Narrow

S16-1

MAX398CPE

0

°C to +70°C

16 Plastic

P16-1

MAX398C/D

0

°C to +70°C

Dice**

—

MAX398EGE

-40

°C to + 85°C

16 QFN-EP*

G1655-3

MAX398EEE

-40

°C to + 85°C

16 QSOP

E16-1

MAX398ESE

-40

°C to + 85°C

16 Narrow

S16-1

MAX398EPE

-40

°C to + 85°C

16 Plastic

P16-1

MAX398EJE

-40

°C to + 85°C

16 CERDIP

J16-1

MAX398MJE

-55

°C to +125°C

16 CERDIP

J16-1

Ordering Information continued at end of data sheet.

*EP = Exposed pad.

**Contact factory for dice specifications.