MAXIM MAX4721, MAX4722, MAX4723 Technical data

General Description

The MAX4721/MAX4722/MAX4723 low-voltage, low onresistance (RON), dual single-pole/single throw (SPST) analog switches operate from a single +1.8V to +5.5V supply. These devices are designed for USB 1.1 and audio switching applications.

The MAX4721/MAX4722/MAX4723 feature 4.5Ω R

ON

(max) with 1.2Ω flatness and 0.3Ω matching between channels. These new switches feature guaranteed operation from +1.8V to +5.5V and are fully specified at 3V and 5V. These switches offer break-before-make switching (1ns) with tON<80ns and t

OFF

<40ns at +2.7V. The digital logic inputs are +1.8V logic compatible with a +2.7V to +3.6V supply.

These switches are packaged in a chip-scale package (UCSP™), significantly reducing the required PC board area. The chip occupies only a 1.52mm ✕ 1.52mm area and has a 3 ✕ 3 bump array with a bump pitch of

0.5mm. These switches are also available in an 8-pin µMAX package.

Applications

Battery-Operated Equipment

Audio/Video-Signal Routing

Low-Voltage Data-Acquisition Systems

Sample-and-Hold Circuits

Communications Circuits

Features

♦ USB 1.1 Signal Switching ♦ <2ns Differential Skew ♦ -3dB Bandwidth: >300MHz ♦ Low 15pF On-Channel Capacitance ♦ Low RON(max) Switches

4.5Ω (max) (+3V Supply) 3Ω (max) (+5V Supply)

♦ 0.3Ω (max) R

ON

Match (+3V Supply)

♦ 1.2Ω (max) R

ON

Flatness (+3V Supply)

♦ <0.5nA Leakage Current at TA= +25°C ♦ High Off-Isolation: -55dB (10MHz) ♦ Low Crosstalk: -80dB (10MHz) ♦ Low Distortion: 0.03% ♦ +1.8V CMOS-Logic Compatible ♦ Single-Supply Operation from +1.8V to +5.5V ♦ Rail-to-Rail®Signal Handling

MAX4721/MAX4722/MAX4723

4.5

Ω

Dual SPST Analog Switches in UCSP

________________________________________________________________ Maxim Integrated Products 1

Ordering Information

19-2632; Rev 0; 10/02

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.

Pin Configurations/Functional Diagrams/Truth Tables

Rail-to-Rail is a registered trademark of Nippon Motorola, Ltd. UCSP is a trademark of Maxim Integrated Products, Inc.

Note: UCSP package requires special solder temperature profile described in the Absolute Maximum Ratings section.

*UCSP reliability is integrally linked to the user’s assembly methods, circuit board material, and environment. See the UCSP reliability notice in the UCSP Reliability section of this data sheet for more information.

PART TEMP RANGE

MAX4721EUA -40°C to +85°C 8 µMAX —

MAX4721EBL-T* -40°C to +85°C 9 UCSP-9 ABP

MAX4722EUA -40°C to +85°C 8 µMAX —

MAX4722EBL-T* -40°C to +85°C 9 UCSP-9 ABQ

MAX4723EUA -40°C to +85°C 8 µMAX —

MAX4723EBL-T* -40°C to +85°C 9 UCSP-9 ABR

PIN/BUMPPACKAGE

TOP

MARK

MAX4721

TOP VIEW

(BUMP SIDE DOWN)

123

A

IN2

GNDV+NO2

B

COM1

C

NO1

COM2

IN1

UCSP

A

B

C

MAX4722

123

IN2

GNDV+NC2

COM1

NC1

COM2

IN1

UCSP

MAX4723

123

A

IN2

GNDV+NC2

B

COM1

C

NO1

UCSP

COM2

IN1

IN_ LOW HIGH

NO_ OFF

ON

NC_

ON

OFF

MAX4721/MAX4722/MAX4723

4.5

Ω

Dual SPST Analog Switches in UCSP

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 noted. Typical values are at V+ = +3.0V,

T

A

= +25°C, unless otherwise noted.) (Notes 3, 4)

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, Unless Otherwise Noted.)

V+, IN_...................................................................-0.3V to +6.0V

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

Continuous Current COM_, NO_, NC_ ...........................±100mA

Peak Current COM_, NO_, NC_

(pulsed at 1ms, 10% duty cycle)................................±200mA

Continuous Power Dissipation (T

A

= +70°C)

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

9-Bump UCSP (derate 4.7mW/°C above +70°C).........379mW

ESD Method 3015.7 .............................................................>2kV

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

Bump Temperature (soldering) (Note 2)

Infrared (15s) ...............................................................+220°C

Vapor Phase (60s) .......................................................+215°C

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

mum current rating.

Note 2: This device is constructed using a unique set of packaging techniques that impose a limit on the thermal profile the device

can be exposed to during board level solder attach and rework. This limit permits only the use of the solder profiles recommended in the industry standard specification, JEDEC 020A, paragraph 7.6, table 3 for IR/VPR and convection reflow. Preheating is required. Hand or wave soldering is not allowed.

)

),

)

Analog Signal Range

PARAMETER SYMBOL CONDITIONS T

V

,

COM_

V

, V

NO_

NC_

ANALOG SWITCH

On-Resistance (Note 5) R

On-Resistance Match Between Channels (Notes 5, 6)

On-Resistance Flatness (Note 7) R

NO_, NC_ Off-Leakage Current (Note 8)

COM_ Off-Leakage Current (Note 8)

COM_ On-Leakage Current (Note 8)

Turn-On Time t

∆R

FLAT(ON

I

NO_(OFF

I

NC_(OFF

I

C OM _ (OF F) ,

I

C OM _ (OF F)

I

COM_(ON

ON

V+ = 2.7V, I

or V

V

NO_

V+ = 2.7V, I

or V

V

NO_

V+ = 2.7V, I V

or V

NO_

V+ = 3.6V, V

or V

V

NO_

V+ = 3.6V, V V

or V

NO_

V+ = 3.6V, V V

or V

NO_

floating

V

, V

NO_

= 300Ω, CL = 35pF, Figure 1

R

L

NC_

= 10mA;

COM_

= 1.5V

NC_

= 10mA;

COM_

= 1.5V

NC_

= 10mA;

COM_

= 1.0V, 1.5V, 2.0V

NC_

= 0.3V, 3.3V;

COM_

= 3.3V, 0.3V

NC_

= 0.3V, 3.3V;

COM_

= 3.3V, 0.3V

= 0.3V, 3.3V;

COM_

= 0.3V, 3.3V, or

NC_

= 1.5V;

A

MIN TYP MAX UNITS

0V+V

+25°C 3.0 4.5

T

to

MIN

T

MAX

5

+25°C 0.1 0.3

T

to

MIN

T

MAX

0.4

+25°C 0.6 1.2

T

to

MIN

T

MAX

1.5

+25°C -0.5 +0.01 +0.5

T

to

MIN

T

MAX

-1.5 +1.5

+25°C -0.5 +0.01 +0.5

to

T

MIN

T

MAX

-1.5 +1.5

+25°C -1 +0.01 +1

to

T

MIN

T

MAX

-2 +2

+25°C4080

T

to

MIN

T

MAX

100

Ω

nA

ns

MAX4721/MAX4722/MAX4723

4.5

Ω

Dual SPST Analog Switches in UCSP

_______________________________________________________________________________________ 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 noted. Typical values are at V+ = +3.0V,

T

A

= +25°C, unless otherwise noted.) (Notes 3, 4)

)

PARAMETER SYMBOL CONDITIONS T

DYNAMIC CHARACTERISTICS

V

, V

Turn-Off Time t

Break-Before-Make Time Delay (MAX4723 Only) (Note 8)

Skew (Note 8) t

OFF

t

BBM

SKEW

Charge Injection Q

NO_

R

= 300Ω, CL = 35pF, Figure 1

L

V

, V

NO_

= 300Ω, CL = 35pF, Figure 2

R

L

RS = 39Ω, CL = 50pF, Figure 3

V

= 2V, R

GEN

C

= 1.0nF, Figure 4

L

f = 10MHz; V

= 50Ω, CL = 5pF, Figure 5a

R

Off-Isolation (Note 9) V

ISO

L

f = 1MHz; V

= 50Ω, CL = 5pF, Figure 5a

R

L

f = 10MHz; V

= 50Ω, CL = 5pF, Figure 5b

R

Crosstalk (Note 10) V

CT

On-Channel -3dB Bandwidth BW

L

f = 1MHz; V

= 50Ω, CL = 5pF, Figure 5b

R

L

Signal = 0dBm, C

= 50Ω, Figure 5a

R

L

Total Harmonic Distortion THD RL = 600Ω +25°C 0.03 %

C

NO_, NC_ Off-Capacitance

Switch On-Capacitance C

NO_(OFF

C

NC_(OFF

(ON)

f = 1MHz, Figure 6 +25°C9 pF

f = 1MHz, Figure 6 +25°C15 pF

DIGITAL I/O

Input Logic High Voltage V

Input Logic Low Voltage V

Input Leakage Current I

IH

IL

IN

V+ = +3.6V, V

SUPPLY

Supply Voltage Range V+

Positive Supply Current I+ V+ = 5.5V, V

NC_

= 1.5V;

GEN

, V

NO_

, V

NO_

, V

NO_

, V

NO_

= 0 or 5.5V

IN_

= 0V or V+

IN_

A

MIN TYP MAX UNITS

+25°C2040

T

to

MIN

T

MAX

50

+25°C8

T

to

= 0Ω,

NC_

= 5pF,

L

= 1V

P-P

MIN

T

MAX

T

to

MIN

T

MAX

+25°C5 pC

;

P-P

+25°C

;

P-P

+25°C

;

+25°C >300 MHz

T

to

MIN

T

MAX

T

to

MIN

T

MAX

T

to

MIN

T

MAX

T

to

MIN

T

MAX

to

T

MIN

T

MAX

1

0.15 0.2 ns

-55

-80

-110

1.4 V

0.5 V

-0.1 +0.1 µA

1.8 5.5 V

1µA

ns

dB

MAX4721/MAX4722/MAX4723

4.5

Ω

Dual SPST Analog Switches in UCSP

4 _______________________________________________________________________________________

ELECTRICAL CHARACTERISTICS—Single +5V Supply

(V+ = +4.2V to +5.5V, VIH= +2.0V, VIL= +0.8V, TA= T

MIN

to T

MAX

, unless otherwise noted. Typical values are at V+ = +5.0V,

T

A

= +25°C, unless otherwise noted.) (Notes 3, 4)

)

),

)

Analog Signal Range

PARAMETER SYMBOL CONDITIONS T

V

,

COM_

V

, V

NO_

NC_

ANALOG SWITCH

On-Resistance (Note 5) R

On-Resistance Match Between Channels (Notes 5, 6)

On-Resistance Flatness (Note 7) R

NO_, NC_ Off-Leakage Current (Note 8)

COM _ Off-Leakage Current (Note 8)

COM_ On-Leakage Current (Note 8)

∆R

FLAT(ON

I

NO_(OFF

I

NC_(OFF

I

C OM _( OF F )

I

COM_(ON

ON

V+ = 4.2V, I

or V

V

NO_

V+ = 4.2V, I

or V

V

NO_

V+ = 4.2V, I V

or V

NO_

V+ = 5.5V, V

or V

V

NO_

V+ = 5.5V, V

V

or V

NO_

V+ = 5.5V, V V

or V

NO_

floating

DYNAMIC CHARACTERISTICS

V

, V

Turn-On Time t

Turn-Off Time t

Break-Before-Make Time Delay (MAX4723 Only) (Note 8)

Skew (Note 8) t

ON

OFF

t

BBM

SKEW

NO_

R

= 300Ω, CL = 35pF, Figure 1

L

V

, V

NO_

= 300Ω, CL = 35pF, Figure 1

R

L

V

, V

NO_

= 300Ω, CL = 35pF, Figure 2

R

L

RS = 39Ω, CL = 50pF, Figure 3

DIGITAL I/O

Input Logic High Voltage V

Input Logic Low Voltage V

IH

IL

NC_

= 10mA;

COM_

= 3.5V

NC_

= 10mA;

COM_

= 3.5V

NC_

= 10mA;

COM_

= 1.0V, 2.0V, 3.5V

NC_

= 1.0V, 4.5V;

COM_

= 4.5V, 1.0V

NC_

= 1V, 4.5V;

COM_

= 4.5V, 1V

NC_

= 1.0V, 4.5V;

COM_

= 1.0V, 4.5V, or

NC_

= 3.0V;

MIN TYP MAX UNITS

to

0V+V

T

MIN

T

A

MAX

+25°C 1.7 3.0

T

MIN

T

MAX

to

3.5

Ω

+25°C 0.1 0.3

T

MIN

T

MAX

to

0.4

Ω

+25°C 0.4 1.2

T

MIN

T

MAX

to

1.5

Ω

+25°C -0.5 +0.01 +0.5

T

MIN

T

MAX

to

-1.5 +1.5

nA

+25°C -0.5 +0.01 +0.5

T

MIN

T

MAX

to

-1.5 +1.5

nA

+25°C -1 +0.01 +1

T

MIN

T

MAX

to

-2 +2

nA

+25°C3080

T

MIN

T

MAX

to

90

ns

+25°C2040

T

MIN

T

MAX

to

50

ns

+25°C8

T

MIN

T

MIN

T

MIN

T

MIN

T

MAX

to

1

1.5 2 ns

2.0 V

to

0.8 V

ns

MAX4721/MAX4722/MAX4723

4.5

Ω

Dual SPST Analog Switches in UCSP

_______________________________________________________________________________________ 5

ELECTRICAL CHARACTERISTICS—Single +5V Supply (continued)

(V+ = +4.2V to +5.5V, VIH= +2.0V, VIL= +0.8V, TA= T

MIN

to T

MAX

, unless otherwise noted. Typical values are at V+ = +5.0V,

T

A

= +25°C, unless otherwise noted.) (Notes 3, 4)

Note 3: UCSP parts are 100% tested at +25°C only, and guaranteed by design over the specified temperature range. µMAX parts

are 100% tested at T

MAX

and guaranteed by design over the specified temperature range.

Note 4: The algebraic convention used in this data sheet is where the most negative value is a minimum and the most positive

value is a maximum.

Note 5: Guaranteed by design for UCSP parts. Note 6: ∆R

ON

= R

ON(MAX)

- R

ON(MIN)

.

Note 7: Flatness is defined as the difference between the maximum and minimum value of on-resistance as measured over the

specified analog signal ranges.

Note 8: Guaranteed by design. Note 9: Off-Isolation = 20log

10(VCOM

/ VNO), V

COM

= output, VNO= input to off switch.

Note 10: Between any two switches.

ON-RESISTANCE vs. V

COM

MAX4721/22/23 toc01

V

COM

(V)

R

ON

(Ω)

4321

2

4

6

8

10

0

05

V+ = 1.8V

V+ = 2.5V

V+ = 3V

V+ = 4.2V

V+ = 5V

ON-RESISTANCE vs. V

COM

MAX4721/22/23 toc02

V

COM

(V)

R

ON

(Ω)

2.52.01.51.00.5

2

3

4

5

6

1

0 3.0

TA = +85°C

TA = +25°C

TA = -40°C

V+ = 3V

ON-RESISTANCE vs. V

COM

MAX4721/22/23 toc03

V

COM

(V)

R

ON

(Ω)

4321

1

2

3

4

5

0

05

V+ = 5V

TA = +85°C

TA = -40°C

TA = +25°C

Typical Operating Characteristics

(TA = +25°C, unless otherwise noted.)

Input Leakage Current I

PARAMETER SYMBOL CONDITIONS T

V+ = 5.5V, VIN_ = 0V or V+

IN

POWER SUPPLY

Power-Supply Range V+

Positive Supply Current I+ V+ = 5.5V, V

= 0V or V+

IN_

MIN TYP MAX UNITS

to

-0.1 +0.1 µA

to

1.8 5.5 V

to

1µA

T

MIN

T

MIN

T

MIN

T

A

MAX