MAXIM MAX4734 Technical data

General Description

The MAX4734 is a low on-resistance, low-voltage, 4channel CMOS analog multiplexer that operates from a single 1.6V to 3.6V supply. This device has fast switching speeds (t

ON

= 25ns, t

OFF

= 20ns max), handles rail-to-rail analog signals, and consumes less than 4µW of quiescent power. The MAX4734 has break-beforemake switching.

When powered from a 3V supply, the MAX4734 features low 0.8Ω (max) on-resistance (R

ON

), with 0.2Ω (max) RONmatching and 0.1Ω RONflatness. The digital logic input is 1.8V CMOS compatible when using a single 3V supply.

The MAX4734 is available in space-saving 12-pin thin QFN (3mm x 3mm) and 10-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 R

ON

0.8Ω (max) (3V Supply) 2Ω (max) (1.8V Supply)

♦ 0.1Ω (max) RONFlatness (3V Supply)

♦ 1.6V to 3.6V Single-Supply Operation

♦ Available in Thin QFN (3mm x 3mm) Package

♦ High-Current Handling Capacity (150mA

Continuous)

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

♦ Fast Switching: t

ON

= 25ns, t

OFF

= 20ns

MAX4734

0.8Ω, Low-Voltage, 4-Channel Analog Multiplexer

________________________________________________________________ Maxim Integrated Products 1

Pin Configurations/Functional Diagrams/Truth Table

Ordering Information

19-2381; Rev 1; 5/04

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.

MAX4734EU

MAX4734ETC -40°C to +85°C 12 Thin QFN (3mm x 3mm)

PART TEMP RANGE PIN-PACKAGE

-40°C to +85°C 10 µMAX

TOP VIEW

MAX4734

N.C.10A1

12A011

A0

1NO1

2

GND

3NO3

4EN5

N.C.6V+

Thin QFN

NO2

9

8

7

COM

NO4

NO1

GND

MAX4734

LOGIC

1

2

3

4

5

µMAX

10

A1

A1 A0ENON SWITCH

0

NO2

COM

NO4NO3

V+EN

XX 00 01 10 11

X = DON'T CARE

9

8

7

6

NONE

1

2

1

3

1

4

MAX4734

0.8Ω, Low-Voltage, 4-Channel Analog Multiplexer

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 or NO_ exceeding V+ or GND are clamped by internal diodes. Limit forward current to maximum current rating.

(Voltages Referenced to GND)

V+, A_, EN_ ..............................................................-0.3V to +4V

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

Continuous Current COM, NO_ ......................................±150mA

Continuous Current (all other pins)...................................±20mA

Peak Current COM, NO_

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

Continuous Power Dissipation (T

A

= +70°C)

10-Pin µMAX (derate 5.6mW/°C above +70°C) ............444mW

12-Pin Thin QFN (derate 14.7mW/°C above +70°C) ..1176mW

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 SYMBOL CONDITIONS T

ANALOG SWITCH

V

,

Analog Signal Range

COM

V

NO

_

A

MIN TYP MAX UNITS

0V+V

On-Resistance (Note 4) R

Between Channels (Notes 4, 5)

On-Resistance Flatness (Note 6)

NO_ Off-Leakage Current (Note 7)

COM Off-Leakage Current (Note 7)

COM On-Leakage Current (Note 7)

R

FLAT(ON

I

NO_(OFF

I

COM(OFF

I

COM(ON

∆R

ON

V+ = 2.7V,

= 100mA,

I

COM

V

_ = 1.5V T

NO

V+ = 2.7V,

= 100mA,

I

COM

V

_ = 1.5V T

NO

V+ = 2.7V,

_ = 100mA,

I

COM

V

_ = 1V, 1.5V, 2V T

NO

V+ = 3.6V,

= 0.3V, 3.3V,

V

COM

V

_ = 3.3V, 0.3V T

NO

V+ = 3.6V,

= 0.3V, 3.3V,

V

COM

V

_ = 3.3V, 0.3V

NO

V+ = 3.6V, V

= 3.3V, 0.3V,

COM

_ = 3.3V, 0.3V, or

V

NO

floating

+25°C 0.6 0.8

MIN

to T

MAX

1

+25°C 0.1 0.2On-Resistance Match

MIN

to T

MAX

0.3

+25°C 0.05 0.1

MIN

to T

MAX

0.2

+25°C -1 ±0.002 +1

MIN

to T

MAX

-5 +5

+25°C -1 ±0.002 +1

T

MIN

to T

MAX

-5 +5

+25°C -2 ±0.002 +2

T

MIN

to T

MAX

-10 +10

Ω

nA

MAX4734

0.8Ω, Low-Voltage, 4-Channel Analog Multiplexer

_______________________________________________________________________________________ 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 SYMBOL CONDITIONS T

SWITCH DYNAMIC CHARACTERISTICS

VNO_ = 1.5V,

Turn-On Time t

ON

R

= 50Ω, CL = 35pF,

L

Figure 1 T

VNO_ = 1.5V,

Turn-Off Time t

OFF

R

= 50Ω, CL = 35pF,

L

Figure 1 T

VNO_ = 1.5V,

Break-Before-Make (Note 8) t

BBM

R

= 50Ω, CL = 35pF,

L

Figure 2 T

V

Charge Injection Q

NO_ Off-Capacitance C

COM Off-Capacitance C

COM On-Capacitance C

OFF

COM(OFF

COM(ON

-3dB On-Channel Bandwidth BW

Off-Isolation (Note 9) V

Crosstalk (Note 10) V

ISO

CT

Total Harmonic Distortion THD

GEN

C

= 1.0nF, Figure 3

L

f = 1MHz, Figure 4 +25°C33pF

f = 1MHz, Figure 4 +25°C 117 pF

f = 1MHz, Figure 4 +25°C 171 pF

Signal = 0, R 50Ω, C

f = 1M H z, V 50Ω, C

f = 20Hz to 20kHz, V 2V

P-P

LOGIC INPUT (A_, EN)

Input Logic High V

Input Logic Low V

Input Leakage Current I

IH

IL

IN

VEN = 0 or 3.6V, VA_ = 0 or 3.6V

POWER SUPPLY

Power-Supply Range V+ 1.6 3.6 V

Positive Supply Current I+

V+ = 3.6V, V V+, all channels on or off

= 0, R

L

= 0,

GEN

= R

IN

= 5pF, Figure 5

= 1V

C OM

= 5p F, Fi g ur e 5

= 1V

C OM

= 5p F, Fi g ur e 5

, RL = 32Ω

EN, A

A

MIN TYP MAX UNITS

+25°C2025

MIN

to T

MAX

30

+25°C1520

MIN

to T

MAX

25

+25°C5

MIN

to T

MAX

1

+25°C60pC

=

OUT

P - P

COM

, RL =

=

+25°C -56 dB

+25°C 0.018 %

90 MHz

1.4 V

0.5 V

-1 0.005 +1 µA

_ = 0 or

0.004 1 µA

ns

MAX4734

0.8Ω, Low-Voltage, 4-Channel Analog Multiplexer

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)

Note 2: The algebraic convention, where the most negative value is a minimum and the most positive value is a maximum, is

used in this data sheet.

Note 3: -40°C specifications are guaranteed by design. Note 4: R

ON

and ∆RONmatching specifications for thin QFN packaged parts are guaranteed by design.

Note 5: ∆R

ON

= R

ON(MAX)

- R

ON(MIN)

.

Note 6: Flatness is defined as the difference between the maximum and the minimum value of on-resistance as measured over

the specified analog signal ranges.

Note 7: Leakage parameters are 100% tested at hot temperature and guaranteed by correlation at room temperature. Note 8: Guaranteed by design. Note 9: Off-Isolation = 20log

10(VCOM/VNO

_), V

COM

= output, VNO_ = input to off switch.

Note 10: Between two switches.

PARAMETER SYMBOL CONDITIONS T

ANALOG SWITCH

Analog Signal Range

On-Resistance R

SWITCH DYNAMIC CHARACTERISTICS

Turn-On Time t

V

COM

V

NO

ON

,

_

I

_ = 10mA,

COM

_ = 1V

V

NO

VNO_ = 1V, RL = 50Ω, C

= 35pF,

L

Figure 1

A

MIN TYP MAX UNITS

0V+V

+25°C 1.5 2

T

to T

MIN

MAX

3

Ω

+25°C2530

ns

T

MIN

to T

MAX

35

Turn-Off Time t

Break-Before-Make (Note 8) t

OFF

BBM

Charge Injection Q

Off-Isolation (Note 9) V

Crosstalk (Note 10) V

ISO

CT

VNO_ = 1V, R

= 50Ω, CL = 35pF,

L

Figure 1

VNO_ = 1V,

= 50Ω, CL = 35pF,

R

L

Figure 2

V

= 0, R

GEN

C

= 1nF, Figure 3

L

f = 1M H z, V = 1V

= 5p F, Fi g ur e 5

C

L

f = 1M H z, V

= 50Ω,

R

L

C

= 5p F, Fi g ur e 5

L

, RL = 50Ω,

P - P

GEN

N O

C OM

_

= 0,

= 1V

P - P

+25°C1825

T

MIN

to T

MAX

28

+25°C7

T

MIN

to T

MAX

1

+25°C35pC

+25°C -56 dB

,

+25°C -56 dB

LOGIC INPUT (A_, EN)

Input Logic High V

Input Logic Low V

Input Leakage Current I

IH

IL

IN

VEN = 0 or 3.6V,

= 0 or 3.6V

V

A_

1V

0.4 V

1µA

ns