General Description

The MAX4850/MAX4850H/MAX4852/MAX4852H family

of dual SPDT (single-pole/double-throw) switches oper-

ate from a single +2V to +5.5V supply and can handle

signals greater than the supply rail. These switches fea-

ture low 3.5

Ω or 3.5Ω/7Ω on-resistance with low on-

capacitance, making them ideal for switching audio

and data signals.

The MAX4850/MAX4850H are configured with two

SPDT switches and feature two comparators for head-

phone detection or mute/send key functions. The

MAX4852 has two SPDT switches with no comparators

for low 1µA supply current.

For over-rail applications, these devices offer either the

pass-through or high-impedance option. For the

MAX4850/MAX4852, the signal (up to 5.5V) passes

through the switch without distortion even when the posi-

tive supply rail is exceeded. For the MAX4850H/

MAX4852H, the switch input becomes high impedance

when the input signal exceeds the supply rail.

The MAX4850/MAX4850H/MAX4852/MAX4852H are

available in the space-saving (3mm x 3mm), 16-pin

TQFN package and operate over the extended temper-

ature range of -40°C to +85°C.

Applications

USB Switching

Audio-Signal Routing

Cellular Phones

Notebook Computers

PDAs and Other Handheld Devices

Features

o USB 2.0 Full Speed (12MB) and USB 1.1 Signal

Switching Compliant

o 0.1ns Differential Skew

o 3.5Ω/7Ω On-Resistance

o 135MHz -3dB Bandwidth

o +2V to +5.5V Supply Range

o 1.8V Logic Compatible

o Low Supply Current

1µA (MAX4852)

5µA (MAX4850)

10µA (MAX4850H/MAX4852H)

o Available in a Space-Saving (3mm x 3mm),

16-Pin TQFN Package

Dual SPDT Analog Switches with

Over-Rail Signal Handling

________________________________________________________________ Maxim Integrated Products

1

Ordering Information

3

MAX4850

MAX4850H

NC1

NO1

NC2

NO2

COUT2

COM1

IN1

IN2

COM2

CIN2

3

COUT1

CIN1

MAX4852

MAX4852H

NC1

NO1

NC2

NO2

COM1

IN1

IN2

COM2

MAX4850_

MAX4852_

IN_

NO_

NC_

0

OFF

ON

1

ON

OFF

SWITCHES SHOWN FOR

LOGIC 0 INPUT

3.5

Ω

3.5

Ω

7

Ω

3.5

Ω

3.5

Ω

7

Ω

Block Diagrams/Truth Table

19-3375; Rev 0; 7/04

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.

*EP = Exposed paddle.

PART

TEMP RANGE

PIN-PACKAGE

TOP

MARK

MAX4850ETE

-40°C to +85°C

16 TQFN-EP*

ABU

MAX4850HETE

-40°C to +85°C

16 TQFN-EP*

ABV

MAX4852ETE

-40°C to +85°C

16 TQFN-EP*

ABZ

MAX4852HETE

-40°C to +85°C

16 TQFN-EP*

ACA

Pin Configurations and Selector Guide appear at end of

data sheet.