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For free samples & the latest literature: http://www.maxim-ic.com, or phone 1-800-998-8800.

For small orders, phone 1-800-835-8769.

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

= 50ns

max, t

OFF

= 50ns max).

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

MAX4625 offer 1Ω max on-resistance (R

), with 0.12Ω

max R

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 6-pin

SOT23 packages.

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

Features

♦ Low R

1Ω max (+5V Supply)

2Ω max (+3V Supply)

♦ 0.12Ω max R

Flatness (+5V Supply)

♦ Overcurrent Protection

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

♦ Available in SOT23 Packages

♦ Fast Switching: t

= 50ns max, t

OFF

= 50ns max

♦ TTL-Logic Compatible (+5V Supply)

♦ Pin Compatible with MAX4544

♦ Guaranteed Break-Before-Make (MAX4624)

♦ Guaranteed Make-Before-Break (MAX4625)

MAX4624/MAX4625

1Ω, Low-Voltage, Single-Supply

SPDT Analog Switches

________________________________________________________________ Maxim Integrated Products 1

TOP VIEW

COM

GND

V+

MAX4624/MAX4625

SOT23-6

LOGIC NC

OFF

SWITCHES SHOWN

FOR LOGIC “0” INPUT

19-1592; Rev 1; 1/00

PART

MAX4624EUT-T

MAX4625EUT-T

-40°C to +85°C

TEMP. RANGE

PIN-

PACKAGE

6 SOT23-6

Pin Configuration/

Functional Diagram/Truth Table

Ordering Information

TOP

MARK

AADL

AADM

MAX4624/MAX4625

1Ω, Low-Voltage, Single-Supply

SPDT Analog Switches

2 _______________________________________________________________________________________

ABSOLUTE MAXIMUM RATINGS

ELECTRICAL CHARACTERISTICS—Single +5V Supply

(V+ = +5V ±10%, GND = 0, V

INH

= 2.4V, V

INL

= 0.8V, T

= T

MIN

to T

MAX

, unless otherwise noted.) (Notes 2, 3)

Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional

operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to

absolute maximum rating conditions for extended periods may affect device reliability.

Voltages Referenced to GND

V+, IN ....................................................................-0.3V to +6V

COM, NC, NO (Note 1)..............................-0.3V to (V+ + 0.3V)

Continuous Current NO, NC to COM..............................±200mA

Peak Current NO, NC to COM

(pulsed at 1ms, 10% duty cycle max) ........................ ±400mA

Continuous Power Dissipation

6-Pin SOT23-6 (derate 7.1mW/°C above +70°C) .........571mW

Operating Temperature Range

MAX462_EUT....................................................-40°C to +85°C

Junction Temperature......................................................+150°C

Storage Temperature Range .............................-65°C to +150°C

Lead Temperature (soldering, 10s) ................................ +300°C

Note 1: Signals on NC, NO, and COM exceeding V+ or GND are clamped by internal diodes.

PARAMETER SYMBOL MIN TYP MAX UNITS

Analog Signal Range

COM

, V

0V+V

0.65 1

On-Resistance R

V+ = 4.5V, V

= 3.5V, I

COM

= 100mA

= +25°C

1.2

Ω

0.06 0.12

On-Resistance Match Between

Channels (Note 4)

∆R

V+ = 4.5V, I

COM

= 100mA,

or V

= 3.5V

= +25°C

0.15

Ω

0.08 0.12

On-Resistance Flatness

(Note 5)

FLAT(ON)

V+ = 4.5V; I

COM

= 100mA;

or V

= 0, 1V, 2V

= +25°C

0.15

Ω

-2 0.01 2

NO or NC Off-Leakage

Current

NO(OFF)

NC(OFF)

V+ = 5.5V; V

COM

= 1V, 4.5V;

or V

= 4.5V, 1V

= +25°C

-20 20

COM On-Leakage

Current

V+ = 5.5V; V

COM

= 1V, 4.5V;

or V

= 1V, 4.5V, or

floating

-4 0.3 4

COM(ON)

= +25°C

-40 40

Overcurrent-Protection

Current Threshold

1.2 A

= +25°C 40 50

Turn-On Time t

or V

= 3V, Figure 2

= T

MIN

to T

MAX

= +25°C 40 50

Turn-Off Time t

OFF

or V

= 3V, Figure 2

= T

MIN

to T

MAX

Break-Before-Make Delay

(Note 6)

BBM

MAX4624 only, Figure 3a

120

Make-Before-Break Delay

(Note 6)

MBB

MAX4625 only, Figure 3b

= T

MIN

to T

MAX

= T

MIN

to T

MAX

= T

MIN

to T

MAX

= T

MIN

to T

MAX

CONDITIONS

DYNAMIC

ANALOG SWITCH

= T

MIN

to T

MAX

= +25°C

= T

MIN

to T

MAX

= +25°C

= T

MIN

to T

MAX

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