19-1592; Rev 2; 5/01

1Ω, Low-Voltage, Single-Supply

SPDT Analog Switches

General Description

The MAX4624/MAX4625 are low-on-resistance, low-

voltage single-pole/double-throw (SPDT) analog switch-

es that operate from a single +1.8V to +5.5V supply.

The MAX4624 has break-before-make switching; the

MAX4625 has make-before-break switching. These

devices also have fast switching speeds (t

ON

= 50ns

max, t

OFF

= 50ns max).

When powered from a +5V supply, the MAX4624/

MAX4625 offer 1Ω max on-resistance (R

ON

), with 0.12Ω

max R

ON

matching and flatness. The digital logic

inputs are TTL compatible when using a single +5V

supply. These switches also feature overcurrent protec-

tion to prevent damage from short circuits and exces-

sive loads.

The MAX4624/MAX4625 are pin compatible with the

MAX4544 and are available in space-saving standard

6-pin SOT23 packages, as well as the 1.0mm high Thin

SOT package.

o

Low R

ON

1Ω max (+5V Supply)

2Ω max (+3V Supply)

o

0.12Ω max R

ON

Flatness (+5V Supply)

o

Overcurrent Protection

o

+1.8V to +5.5V Single-Supply Operation

o

Available in SOT23 Packages

o

Fast Switching: t

ON

= 50ns max, t

OFF

= 50ns max

o

TTL-Logic Compatible (+5V Supply)

o

Pin Compatible with MAX4544

o

Guaranteed Break-Before-Make (MAX4624)

o

Guaranteed Make-Before-Break (MAX4625)

Features

MAX4624/MAX4625

Applications

Power Routing

Battery-Operated Equipment

Audio and Video Signal Routing

Low-Voltage Data-Acquisition Systems

Communications Circuits

PCMCIA Cards

Cellular Phones

Modems

Hard Drives

PART

MAX4624EUT-T

MAX4624EZT-T

MAX4625EUT-T

MAX4625EZT-T

Ordering Information

TEMP. RANGE

-40°C to +85°C

-40°C to +85°C

-40°C to +85°C

-40°C to +85°C

PIN-

PACKAGE

6 SOT23-6

6 SOT23-6*

6 SOT23-6

6 SOT23-6*

TOP

MARK

AADL

AAAE

AADM

AAAF

*Thin

SOT (1.0mm height) package. Recommended for new

designs.

Pin Configuration/

Functional Diagram/Truth Table

TOP VIEW

MAX4624/MAX4625

IN 1

V+ 2

GND 3

6

5

4

NO

COM

NC

LOGIC

0

1

NC

ON

OFF

NO

OFF

ON

SOT23-6

SWITCHES SHOWN

FOR LOGIC “0” INPUT

________________________________________________________________

Maxim Integrated Products

1

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.