General Description

The MAX4686/MAX4687/MAX4688 low on-resistance

gle +1.8V to +5.5V supply. The MAX4686/MAX4687 are

single-pole/single-throw (SPST) analog switches, and

the MAX4688 is a single-pole/double-throw (SPDT) ana-

log switch. The MAX4686 is a normally open (NO)

switch, and the MAX4687 is a normally closed (NC)

switch. The MAX4688 has one normally open (NO)

switch and one normally closed (NC) switch.

When powered from a 3V supply these devices feature

2.5

(max) flatness. The MAX4686/MAX4687/MAX4688 offer

max). The MAX4688 offers break-before-make action.

The digital logic inputs are 1.8V logic compatible from a

+2.7V to +3.3V supply. The MAX4686/MAX4687/

MAX4688 are available in the chip-scale package

(UCSP™), significantly reducing the required PC board

area. The chip occupies only a 1.50mm x 1.02mm area.

The 3 x 2 array of solder bumps are spaced with a

0.5mm bump pitch.

________________________Applications

MP3 Players

Cellular Phones

Power Routing

Battery-Operated Equipment

Relay Replacement

Audio and Video Signal Routing

Communications Circuits

PCMCIA Cards

Cellular Phones

Hard Drives

Features

o 6-Bump, 0.5mm Pitch, UCSP

2.5

Ω max (+3V Supply)

10

Ω max (+1.8V Supply)

o Low Leakage Currents Over Temperature

o Guaranteed Break-Before-Make (MAX4688)

o +1.8V to +5.5V Single-Supply Operation

o Low Crosstalk: -95dB (100kHz)

o High Off-Isolation: -90dB (100kHz)

o 1.8V Logic Compatible

2.5

Ω, Low-Voltage, SPST/SPDT

Analog Switches in UCSP Package

________________________________________________________________ Maxim Integrated Products

1

IN

COM

GND

NO

V+

TOP VIEW

IN

NC

GND

NO

COM

V+

MAX4688

SPDT

IN

COM

GND

NC

V+

MAX4687

SPST NC

MAX4686

SPST NO

MAX4686/MAX4687/MAX4688

IN

0

1

NO

OFF

ON

NC

ON

OFF

B3

I.C.

B1

A3

A2

A1

B2

B3

B1

A3

A2

A1

B2

I.C.

B3

B1

A3

A2

A1

B2

SWITCHES SHOWN FOR LOGIC "0"

Pin Configurations/Functional Diagrams/Truth Table

19-2042; Rev 1; 2/03

Ordering Information

PART

TEMP

RANGE

BUMP-

PACKAGE

TOP

MARK

MAX4686EBT-T

-40°C to +85°C

6 UCSP-6

AAI

MAX4687EBT-T

-40°C to +85°C

6 UCSP-6

AAJ

MAX4688EBT-T

-40°C to +85°C

6 UCSP-6

AAK

Rail-to-Rail is a registered trademark of Nippon Motorola, Ltd.

UCSP is a trademark of Maxim Integrated Products, Inc.

For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at

1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com.