MAXIM MAX4741, MAX4742, MAX4743 Technical data

General Description

The MAX4741/MAX4742/MAX4743 are low on-resistance,
low-voltage, dual single-pole/single-throw (SPST) analog
switches that operate from a single +1.6V to +3.6V sup­ply. These devices have fast switching speeds (tON=
24ns, t

OFF

= 16ns max), handle rail-to-rail analog signals,
and consume less than 1µW of quiescent power. The
MAX4743 has break-before-make switching.

When powered from a +3V supply, the MAX4741/
MAX4742/MAX4743 feature low 0.8Ω (max) on-resis­tance (RON), with 0.08Ω (max) RONmatching and

0.18Ω RONflatness. The digital logic input is 1.8V
CMOS compatible when using a single +3V supply.

The MAX4741 has two normally open (NO) switches,
the MAX4742 has two normally closed (NC) switches,
and the MAX4743 has one NO switch and one NC
switch. The MAX4741 is available in 8-pin µDFN (2mm
x 2mm), 8-pin SOT23, and 8-pin µMAX®packages. The
MAX4742/MAX4743 are available in 8-pin SOT23 and
8-pin µMAX packages.

Applications

Power Routing

Battery Powered Systems

Audio and Video Signal Routing

Low-Voltage Data-Acquisition Systems

Communications Circuits

PCMCIA Cards

Cellular Phones

Modems

Hard Drives

Features

♦ Low RON:

0.8Ω max (+3V Supply)

2.5Ω max (+1.8V Supply)

♦ 0.18Ω max RONFlatness (+3V Supply)

♦ +1.6V to +3.6V Single-Supply Operation

♦ Available in SOT23 and µMAX Packages

♦ High-Current Handling Capacity (150mA

continuous)

♦ 1.8V CMOS Logic Compatible (+3V Supply)

♦ Fast Switching: t

ON

= 24ns, t

OFF

= 16ns

MAX4741/MAX4742/MAX4743

0.8Ω, Low-Voltage, Single-Supply Dual SPST
Analog Switches

________________________________________________________________ Maxim Integrated Products 1

4GND

5

NO2

3IN2 6 COM2

1

2COM1

NO1 87V+

IN1

TOP VIEW

µMAX

MAX4741

4GND

5

NC2

3IN2 6 COM2

1

2COM1

NO1 87V+

IN1

µMAX

MAX4743

4GND

5

NC2

3IN2 6 COM2

1

2COM1

NC1 87V+

IN1

µMAX

MAX4742

Pin Configurations

Ordering Information

19-2116; Rev 2; 12/06

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.

PART

PIN­PACKAGE

TOP

PACKAGE

CODE

MAX4741EKA

8 SOT23-8 AAIY

K8S-3

MAX4741EUA

8 µMAX —

U8-1

MAX4741ELA

8 µDFN +AAV

L822-1

MAX4742EKA

8 SOT23-8 AAIZ

K8S-3

MAX4742EUA

8 µMAX —

U8-1

MAX4743EKA

8 SOT23-8 AAJA

K8S-3

MAX4743EUA

8 µMAX —

U8-1

SOT23-8 Pin Configurations continued at end of data sheet.

µMAX is a registered trademark of Maxim Integrated Products, Inc.

Note: All devices are specified over the -40°C to +85°C oper­ating temperature range.

MARK

MAX4741/MAX4742/MAX4743

0.8Ω, Low-Voltage, Single-Supply Dual SPST
Analog Switches

2 _______________________________________________________________________________________

ABSOLUTE MAXIMUM RATINGS

ELECTRICAL CHARACTERISTICS—Single +3V Supply

(V+ = +2.7V to +3.6V, VIH= +1.4V, VIL= +0.5V, TA= T

MIN

to T

MAX

, unless otherwise specified. Typical values are at V+ = +3.0V,

T

A

= +25°C.) (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.

Note 1: Signals on COM_, NO_, or NC_ exceeding V+ or GND are clamped by internal diodes. Limit forward current to

maximum current rating.

Voltages Referenced to GND

V+, IN_......................................................................-0.3V to +4V

COM_, NO_, NC_ (Note 1) ...........................-0.3V to (V+ + 0.3V)

Continuous Current COM_ , NO_, NC_ .........................±150mA

Peak Current COM_, NO_, NC_

(pulsed at 1ms 10% duty cycle)..................................±300mA

Continuous Power Dissipation (T

A

= +70°C)

8-Pin SOT23 (derate 7.52mW/°C above +70°C)...........602mW

8-Pin µMAX (derate 4.5mW/°C above +70°C) ..............362mW

8-Pin µDFN (derate 4.8mW/°C above +70°C) ..............381mW

Operating Temperature Range ...........................-40°C to +85°C

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

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

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

PARAMETER

CONDITIONS T

A

UNITS

ANALOG SWITCH

Analog Signal Range

V

COM

_,

V

NO

_,

V

NC

_

V+ V

+25°C 0.5 0.8

On-Resistance R

ON

V+ = 2.7V,
I

COM

_ = 100mA,

V

NO

_ or VNC_ = 1.5V

0.9

Ω

+25°C

On-Resistance Match
Between Channels (Note 4)

∆R

ON

V+ = 2.7V,
I

COM

_ = 100mA,

V

NO

_ or VNC_ = 1.5V

Ω

+25°C

On-Resistance Flatness
(Note 5)

)

V+ = 2.7V,
I

COM

_ = 100mA,

Ω

+25°C -1 1

NO_ or NC_ Off-Leakage
Current

I

NO_(OFF)

,

)

V+ = 3.3V,
V

COM

_ = 0.3V, 3V,

V

NO

_ or VNC_ = 3V, 0.3V

-5 5

nA

+25°C -1 1

COM_ Off-Leakage Current

)

V+ = 3.3V,
V

COM

_ = 0.3V, 3V

V

NO

_ or VNC_ = 3V, 0.3V or

floating

-5 5

nA

+25°C -2 2

COM_ On-Leakage Current

)

V+ = 3.3V,
V

COM

_ = 3V, 0.3V;

V

NO

_ or VNC_ = 3V, 0.3V or

floating

-10 10

nA

SYMBOL

MIN TYP MAX

R

FLAT(ON

VNO_ or VNC_ = 1V, 1.5V, 2V T

I

NC_(OFF

I

COM_(OFF

I

COM_(ON

0

T

to T

MIN

MAX

T

to T

MIN

MAX

MIN

to T

MAX

T

to T

MIN

MAX

T

to T

MIN

MAX

T

to T

MIN

MAX

0.05 0.08

0.09

0.05 0.18

0.20

MAX4741/MAX4742/MAX4743

0.8Ω, Low-Voltage, Single-Supply Dual SPST
Analog Switches

_______________________________________________________________________________________ 3

ELECTRICAL CHARACTERISTICS—Single +3V Supply (continued)

(V+ = +2.7V to +3.6V, VIH= +1.4V, VIL= +0.5V, TA= T

MIN

to T

MAX

, unless otherwise specified. Typical values are at V+ = +3.0V,

T

A

= +25°C.) (Notes 2, 3)

PARAMETER

CONDITIONS T

A

UNITS

SWITCH DYNAMIC CHARACTERISTICS

+25°C 18 24

Turn-On Time t

ON

VNO_, VNC_ = 1.5V,
R

L

= 50Ω, CL = 35pF,

Figure 1

28

ns

+25°C 12 16

Turn-Off Time t

OFF

VNO_, VNC_ = 1.5V,
R

L

= 50Ω, CL = 35pF,

Figure 1

18

ns

+25°C 6

Break-Before-Make (Note 6) t

BBM

VNO_, VNC_ = 1.5V,
R

L

= 50Ω, CL = 35pF,

Figure 1 (MAX4743)

1

ns

Charge Injection Q

V

GEN

= 0, R

GEN

= 0, CL =

1.0nF, Figure 3

+25°C 28 pC

NO_ or NC_ Off­Capacitance

C

OFF

f = 1MHz, Figure 4 +25°C 32 pF

COM_ Off-Capacitance

)

f = 1MHz, Figure 4 +25°C 32 pF

COM_ On-Capacitance

)

f = 1MHz, Figure 4 +25°C 44 pF

-3dB On-Channel Bandwidth

BW

Signal = 0, R

IN

= R

OUT

=

50Ω, C

L

= 5pF, Figure 2

MHz

Off-Isolation (Note 7) V

ISO

f = 1M H z, V

C OM

_ = 1V

RM S

, R

L

= 50Ω, C L = 5p F, Fi g ur e 2

+25°C -55 dB

Crosstalk (Note 8)

f = 1M H z, V

C OM

_ = 1V

RM S

, R

L

= 50Ω, C L = 5p F, Fi g ur e 2

+25°C

dB

Total Harmonic Distortion THD

f = 20Hz to 20kHz, V

COM

_ =

2Vp-p, R

L

= 32Ω

+25°C

%

LOGIC INPUT

Input Logic High V

IH

1.4 V

Input Logic Low V

IL

0.5 V

Input Leakage Current I

IN

VIN_ = 0 or V+ -1

1µA

POWER SUPPLY

Power-Supply Range V+ 1.6 3.6 V

Positive Supply Current I+

V+ = 3.6V, V

IN

_ = 0 or V+,

all channels on or off

+25°C 0.2 µA

SYMBOL

C

COM_(OFF

C

COM_(ON

MIN TYP MAX

T

to T

MIN

MAX

T

to T

MIN

MAX

T

to T

MIN

MAX

100

-110

0.02

0.005

MAX4741/MAX4742/MAX4743

0.8Ω, Low-Voltage, Single-Supply Dual SPST
Analog Switches

4 _______________________________________________________________________________________

ELECTRICAL CHARACTERISTICS—Single +1.8V Supply

(V+ = +1.8V, VIH= +1.0V, VIL= 0.4V, TA= T

MIN

to T

MAX

, unless otherwise specified. Typical values are at TA= +25°C.) (Notes 2, 3)

PARAMETER

CONDITIONS T

A

UNITS

ANALOG SWITCH

Analog Signal Range

V

COM

_,

V

NO

_,

V

NC

_

0V+V

+25°C 1.3 2.5

On-Resistance R

ON

I

COM

_ = 10mA,

V

NO

_ or VNC_ = 0.9V

5

Ω

+25°C -1 1

NO_ or NC_ Off-Leakage
Current

I

NO_(OFF)

,

)

V

COM

_ = 0.3V, 1.5V;

V

NO

_ or VNC_ = 1.5V,

0.3V

-5 5

nA

+25°C -1 1

COM_ Off-Leakage Current

)

V

COM

_ = 0.3V, 1.5V;

V

NO

_ or VNC_ = 1.5V,

0.3V

-5 5

nA

+25°C -2 2

COM_ On-Leakage Current

)

V

COM

_ = 0.3V, 1.5V,

V

NO

_ or VNC_ = 0.3V,

1.5V, or floating

-10 10

nA

SWITCH DYNAMIC CHARACTERISTICS

+25°C 25 35

Turn-On Time t

ON

VNO_, VNC_ = 1.5V,
RL = 50Ω, C

L

= 35pF,

Figure 1

40

ns

+25°C 16 25

Turn-Off Time t

OFF

VNO_, VNC_ = 1.5V,
R

L

= 50Ω, CL = 35pF,

Figure 1

30

ns

+25°C 10

Break-Before-Make (Note 6) t

BBM

VNO_, VNC_ = 1.5V,
R

L

= 50Ω, CL = 35pF,

Figure 1 (MAX4743)

1

ns

Charge Injection Q

V

GEN

= 0, R

GEN

= 0,

C

L

= 1nF, Figure 2

+25°C 16 pC

Off-Isolation (Note 7) V

ISO

f = 1M H z, V

N O

_ = V

N C

_

= 1V

RM S

, RL = 50Ω,

C

L

= 5p F, Fi g ur e 2

+25°C -50 dB

Crosstalk (Note 8)

f = 1M H z, V

C OM

_ = 1V

RM S

,

R

L

= 50Ω,

C

L

= 5p F, Fi g ur e 2

+25°C

dB

I

SYMBOL

I

NC_(OFF

COM_(OFF

T

T

T

MIN

MIN

MIN

to T

to T

to T

MAX

MAX

MAX

MIN TYP MAX

I

COM_(ON

T

to T

MIN

MAX

T

MIN

to T

MAX

T

to T

MIN

MAX

T

to T

MIN

MAX

-110