MAXIM MAX4641, MAX4642, MAX4643 Technical data

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.

General Description

The MAX4641/MAX4642/MAX4643 are monolithic, dual,
single-pole/single-throw (SPST) switches that can operate
from a single supply ranging from +1.8V to +5.5V. The
MAX4641/MAX4642/MAX4643 provide low 4Ω on-resis­tance (RON), 0.6Ω RONmatching between channels, and
1Ω RONflatness over the entire analog signal range.
These devices offer fast switching times of less than 20ns
while consuming less than 0.01µW of quiescent power.

The MAX4641 has two normally open (NO) switches,
and the MAX4642 has two normally closed (NC)
switches. The MAX4643 has one NO switch and one NC
switch. All three devices have low 0.35nA leakage cur­rents over the entire temperature range. The MAX4641/
MAX4642/MAX4643 are available in small 8-pin µMAX
and 8-pin QFN packages.

Applications

Battery-Operated Equipment

Audio and Video Signal Routing

Low-Voltage Data-Acquisition Systems

Sample-and-Hold Circuits

Communications Circuits

Features

♦ +1.8V to +5.5V Single-Supply Operation
♦ Rail-to-Rail™ Analog Signal Range
♦ Guaranteed R

ON

4Ω max (+5V supply)
8Ω max (+3V supply)

♦ +1.8V Operation

RON30Ω typ Over Temperature
tON18ns typ, t

OFF

12ns typ

♦ Guaranteed RONFlatness: 1Ω (+5V supply)
♦ Guaranteed RONMatch Between Channels

0.6Ω (+5V supply)

♦ Low Leakage (<0.35nA) Over Entire Temperature

Range

♦ Excellent AC Characteristics

Low Crosstalk: -97dB at 1MHz
High Off-Isolation: -80dB at 1MHz

0.018% Total Harmonic Distortion

♦ Low Power Consumption: < 0.01µW

MAX4641/MAX4642/MAX4643

High-Speed, Low-Voltage, 4Ω, Dual SPST

CMOS Analog Switches

________________________________________________________________ Maxim Integrated Products 1

Pin Configurations/Functional Diagrams/Truth Tables

19-1656; Rev 1; 2/02

Ordering Information

8 µMAX

PIN-PACKAGETEMP RANGE

-40°C to +85°C

MAX4643EUA

PART

8 µMAX-40°C to +85°C

MAX4642EUA

8 µMAX-40°C to +85°C

MAX4641EUA

Rail-to-Rail is a trademark of Nippon Motorola, Ltd.

8 QFN 3 x 3-40°C to +85°CMAX4641EGA

8 QFN 3 x 3-40°C to +85°CMAX4642EGA

8 QFN 3 x 3-40°C to +85°CMAX4643EGA

Pin Configurations continued at end of data sheet.

查询MAX4641EGA供应商

TOP VIEW

MAX4641

1

NO1

2

COM1

3

IN2

4

GND

µMAX

MAX4641

IN_

0

1

NO_

OFF

ON

MAX4642

8

V+

IN1

7

6

COM2

NO2

5

NC1

COM1

IN2

GND

1

2

3

4

µMAX

MAX4642

IN_

0

1

NC_

ON

OFF

8

V+

IN1

7

6

COM2

NC2

5

NO1

COM1

IN2

GND

IN_

0

1

MAX4643

1

2

3

4

µMAX

MAX4643

NO1

OFF

ON

8

V+

IN1

7

6

COM2

NC2

5

NC2

ON

OFF

MAX4641/MAX4642/MAX4643

High-Speed, Low-Voltage, 4Ω, Dual SPST
CMOS Analog Switches

2 _______________________________________________________________________________________

ABSOLUTE MAXIMUM RATINGS

ELECTRICAL CHARACTERISTICS—Single +5V Supply

(V+ = +4.5V to +5.5V, V

INH

= 2.4V, V

INL

= 0.8V, TA= T

MIN

to T

MAX

, unless otherwise noted. Typical values are at TA= +25°C.)

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.

(All Voltages Referenced to GND)

V+ .............................................................................-0.3V to +6V

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

Continuous Current (any terminal)....................................±20mA

Continuous Current (NO_, NC_, COM_)...........................±50mA

Peak Current (NO_, NC_, COM_, pulsed at 1ms,

10% duty cycle)........................................................ ±100mA

Continuous Power Dissipation (T

A

= +70°C)

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

8-Pin QFN (derate 24.4mW/°C above +70°C) ......... 1951mW

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

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

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

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

V+ = 4.5V,
I

COM_

= 10mA, V

NO_

or V

NC_

= 0 to V+

V

IN_

= 0.8V or 2.4V

V+ = 5.5V, V

COM_

=

1V or 4.5V

V+ = 4.5V, I

COM_

=

10mA, V

NO_

or

V

NC_

= 0 to V+

V+ = 4.5V, I

COM_

=

10mA, V

NO_

or

V

NC_

= 0 to V+

CONDITIONS

µA-0.1 0.005 0.1I

IN

IN_ Input Current

V0.8V

IL

IN_ Input Logic Low

V2.4V

IH

IN_ Input Logic High

Ω

2.5 4

R

ON

On-Resistance

V0V+

V

COM_

,

V

NO_

,

V

NC_

Analog Signal Range

DIGITAL INPUTS

-0.35 0.35

I

COM_(ON)

nA

-0.25 0.01 0.25

COM_ On-Leakage Current
(Notes 4, 5)

1.5

5

Ω

0.2 0.6

∆R

ON

On-Resistance Match
Between Channels
(Notes 2, 8)

0.8

Ω

0.85 1

R

FLAT

On-Resistance Flatness
(Note 3)

UNITSMIN TYP MAXSYMBOLPARAMETER

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

maximum current rating.

TA= +25°C

TA= T

MIN

to T

MAX

TA= +25°C

TA= T

MIN

to T

MAX

TA= +25°C

TA= T

MIN

to T

MAX

TA= +25°C

V+ = 5.5V, V

COM_

=

1V or 4.5V, V

NO_

or

V

NC_

= 4.5V or 1V

-0.35 0.35TA= T

MIN

to T

MAX

nA

-0.25 0.01 0.25

I

NO_(OFF)

,

I

NC_(OFF)

NO_, NC_ Off-Leakage
Current (Note 4)

TA= +25°C

V+ = 5.5V, V

COM_

=

1V or 4.5V, V

NO_

or

V

NC_

= 4.5V or 1V

-0.35 0.35TA= T

MIN

to T

MAX

nA

-0.25 0.01 0.25

I

COM_(OFF)

COM_ Off-Leakage Current
(Note 4)

TA= +25°C

TA= T

MIN

to T

MAX

ANALOG SWITCH

DIGITAL INPUTS

MAX4641/MAX4642/MAX4643

High-Speed, Low-Voltage, 4Ω, Dual SPST

CMOS Analog Switches

_______________________________________________________________________________________ 3

ELECTRICAL CHARACTERISTICS—Single +5V Supply (continued)

(V+ = +4.5V to +5.5V, V

INH

= 2.4V, V

INL

= 0.8V, TA= T

MIN

to T

MAX

, unless otherwise noted. Typical values are at TA= +25°C.)

ELECTRICAL CHARACTERISTICS—Single +3V Supply

(V+ = +2.7V to +3.3V, V

INH

= 2.0V, V

INL

= 0.4V, TA= T

MIN

to T

MAX

, unless otherwise noted. Typical values are at TA= +25°C.)

V+ = 2.7V, I

COM_

=

10mA, V

NO_

or

V

NC_

= 0 to V+

TA= +25°C

V+ = 2.7V, I

COM_

=

10mA, V

NO_

or

V

NC_

= 0 to V+

CONDITIONS

Ω

68

R

ON

On-Resistance

V0V+

V

COM_

,

V

NO_,

V

NC_

Analog Signal Range

TA= T

MIN

to T

MAX

9

TA= +25°C

TA= T

MIN

to T

MAX

Ω

0.2 0.6

∆R

ON

On-Resistance Match
Between Channels
(Notes 2, 8)

0.8

UNITSMIN TYP MAXSYMBOLPARAMETER

TA= +25°C

V+ = 2.7V, I

COM_

=

10mA, V

NO_

or

V

NC_

= 0 to V+

TA= T

MIN

to T

MAX

Ω

1.5 3.0

R

FLAT

On-Resistance Flatness
(Note 3)

3.5

ANALOG SWITCH

%0.018RL= 600Ω, 0.5Vp-p, f = 20Hz to 20kHzTHDTotal Harmonic Distortion

µA0.001 1.0V+ = 5.5V, V

IN_

= 0 or V+I+Positive Supply Current

-77

-56

Crosstalk (Note 7) V

CT

-97

dB

f = 10MHz

f = 1MHz

CL= 5pF, RL= 50Ω,
Figure 3

f = 10MHz

f = 1MHz

PARAMETER SYMBOL MIN TYP MAX UNITS

Break-Before-Make (Note 4)
(MAX4643 only)

t

BBM

7

ns

TA= T

MIN

to T

MAX

10

Turn-Off Time (Note 4) t

OFF

58

ns

TA= T

MIN

to T

MAX

TA= +25°C

18

TA= T

MIN

to T

MAX

1

Turn-On Time (Note 4) t

ON

915

ns

Charge Injection Q 2 pC

NO_, NC_ Off-Capacitance

C

NO_ (OFF),

C

NC_ (OFF)

7 pF

COM_ Off-Capacitance C

COM_

(OFF)

7 pF

Switch On-Capacitance C

(ON)

18 pF

Off-Isolation (Note 6) V

ISO

-80

dB

CONDITIONS

V

GEN

= 0, R

GEN

= 0, CL= 1nF, Figure 4

RL= 300Ω,
C

L

= 35pF, V

NO_

=

V

NC_

= 3V, Figure 2

NO_ or NC_ = GND, f = 1MHz, Figure 5

TA= +25°C

RL= 300Ω, CL=
35pF, V

NO_

= V

NC_

=

3V, Figure 2

TA= +25°C

f = 1MHz, Figure 5

f = 1MHz, Figure 5

CL= 5pF, RL= 50Ω,
Figure 3

RL= 300Ω, CL=
35pF, V

NO_

= V

NC_

=

3V, Figure 2

DYNAMIC

SUPPLY