MAXIM MAX4731, MAX4732, MAX4733 User Manual

General Description

The MAX4731/MAX4732/MAX4733 low-voltage, dual, single-pole/single-throw (SPST) analog switches operate from a single +2V to +11V supply and handle railto-rail analog signals. These switches exhibit low leakage current (0.1nA) and consume less than 0.5nW (typ) of quiescent power, making them ideal for batterypowered applications.

When powered from a +3V supply, these switches feature 50Ω (max) on-resistance (RON) with 3.5Ω (max) matching between channels, and 9Ω (max) flatness over the specified signal range.

The MAX4731 has two normally open (NO) switches, the MAX4732 has two normally closed (NC) switches, and the MAX4733 has one NO and one NC switch. The MAX4731/MAX4732/MAX4733 are available in 9-bump chip-scale packages (UCSP™), along with 8-pin TDFN and 8-pin µMAX®packages. The tiny UCSP occupies a

1.52mm ✕ 1.52mm area and significantly reduces the required PC board area.

Applications

Battery-Powered Systems

Audio/Video-Signal Routing

Low-Voltage Data-Acquisition Systems

Cell Phones

Communications Circuits

PDAs

Features

♦ 1.52mm ✕ 1.52mm UCSP Package ♦ Guaranteed On-Resistance (RON)

25Ω (max) at +5V 50Ω (max) at +3V

♦ On-Resistance Matching

3Ω (max) at +5V

3.5Ω (max) at +3V

♦ Guaranteed < 0.1nA Leakage Current at

TA= +25°C

♦ Single-Supply Operation from +2.0V to +11V ♦ TTL/CMOS-Logic Compatible ♦ -108dB Crosstalk (1MHz) ♦ -72dB Off-Isolation (1MHz) ♦ Low Power Consumption: 0.5nW (typ) ♦ Rail-to-Rail Signal Handling

MAX4731/MAX4732/MAX4733

50

Ω,

Dual SPST Analog Switches in UCSP

________________________________________________________________ Maxim Integrated Products 1

Ordering Information

19-2645; 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

TEMP

RANGE

TOP

MARK

MAX4731EUA

8 µMAX —

MAX4731ETA

ALG

MAX4731EBL-

9 UCSP-9

ABV

MAX4732EUA

8 µMAX —

MAX4732ETA

ALH

MAX4732EBL-

9 UCSP-9 ABT

MAX4733EUA

8 µMAX —

MAX4733ETA

ALI

MAX4733EBL-

9 UCSP-9

ABS

NO2

V+

GND

IN2

IN1

NO1

COM1

COM2

TOP VIEW

(BUMPS

ON BOTTOM)

UCSP

MAX4731

A1

B1

C1

C2

C3

B3

A3A2

MAX4732

NC2V+

GND

IN2

IN1

NC1

COM1

COM2

UCSP

A1

B1

C1

C2

C3

B3

A3A2

IN_

0

1

NO_

MAX4731

OFF

ON

SWITCHES SHOWN

FOR LOGIC "0" INPUT

IN_

0

1

NC_

MAX4732

ON

OFF

SWITCHES SHOWN

FOR LOGIC "0" INPUT

COM1

GND

NO1

TDFN

MAX4731

COM2

NO2

IN1

1

2

IN2

3

4

8

7

6

5

COM1

GND

NC1

TDFN

MAX4732

IN1

COM2

V+

1

2

IN2

3

4

8

7

6

5

TOP VIEW

(BUMPS

ON BOTTOM)

V+

NC2

Pin Configurations/Functional Diagrams/Truth Tables

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

Pin Configurations/Functional Diagrams/Truth Tables continued at end of data sheet.

*Future product—contact factory for availability. **EP = Exposed pad.

PIN/BUMPPACKAGE

-40°C to +85°C

-40°C to +85°C 8 TDFN-EP**

-40°C to +85°C

-40°C to +85°C 8 TDFN-EP**

-40°C to +85°C

-40°C to +85°C 8 TDFN-EP**

-40°C to +85°C

MAX4731/MAX4732/MAX4733

50

Ω,

Dual SPST Analog Switches in UCSP

2 _______________________________________________________________________________________

ABSOLUTE MAXIMUM RATINGS

ELECTRICAL CHARACTERISTICS—Single +3V Supply

(V+ = +3V ±10%, VIH= +2.0V, VIL= +0.8V, TA= T

MIN

to T

MAX

, unless otherwise noted. Typical values are at V+ = +3V, TA= +25°C.)

(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.)

V+ ...........................................................................-0.3V to +12V

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

Continuous Current (any pin) ...........................................±10mA

Peak Current (any pin, pulsed at 1ms, 10% duty cycle) ...±20mA Continuous Power Dissipation (T

A

= +70°C)

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

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

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

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

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

Maximum Junction Temperature .....................................+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 IN_, NO_, NC_, or COM_ exceeding V+ or GND are clamped by internal diodes. Limit forward-diode current to

maximum 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.

PARAMETER

CONDITIONS T

A

UNITS

ANALOG SWITCH

Analog Signal Range

V

COM_

,

0V+V

19 50

On-Resistance R

ON

V+ = +2.7V, I

COM_

= 5mA;

V

NO_

or V

NC_

= +1.5V

T

MIN

to

60

Ω

0.8 3.5

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

∆R

ON

V+ = +2.7V, I

COM_

= 5mA;

V

NO_

or V

NC_

= +1.5V

T

MIN

to

4.5

Ω

2.3 9

On-Resistance Flatness (Note 7)

)

V+ = +2.7V, I

COM_

= 5mA;

T

MIN

to

11

Ω

NO_ or NC_ Off-Leakage Current (Note 8)

)

V+ = +3.6V, V

COM_

= +0.3V, +3V;

V

NO_

or V

NC_

= +3V, +0.3V

T

MIN

to

-2 +2

nA

COM_ Off-Leakage Current (Note 8)

)

V+ = +3.6V, V

COM_

= +0.3V, +3V;

V

NO_

or V

NC_

= +3V, +0.3V

T

MIN

to

-2 +2

nA

COM_ On-Leakage Current (Note 8)

)

V+ = +3.6V, V

COM_

= +0.3V, +3.0V;

V

NO_

or V

NC_

= +0.3V, +3V, or

floating

T

MIN

to

-4 +4

nA

SYMBOL

MIN TYP MAX

V

, V

NO_

NC_

R

FLAT(ON

I

COM_(OFF

I

COM_(ON

NO_(OFF

NC_(OFF

V

or V

NO_

NC_

= +1V, +1.5V, +2V

+25°C

T

MAX

+25°C

T

MAX

+25°C

T

MAX

+25°C -0.1 +0.1

T

MAX

+25°C -0.1 +0.1

T

MAX

+25°C -0.2 +0.2

T

MAX

MAX4731/MAX4732/MAX4733

50

Ω,

Dual SPST Analog Switches in UCSP

_______________________________________________________________________________________ 3

ELECTRICAL CHARACTERISTICS—Single +3V Supply (continued)

(V+ = +3V ±10%, VIH= +2.0V, VIL= +0.8V, TA= T

MIN

to T

MAX

, unless otherwise noted. Typical values are at V+ = +3V, TA= +25°C.)

(Notes 3, 4)

PARAMETER

CONDITIONS T

A

UNITS

DYNAMIC CHARACTERISTICS

70 150

Turn-On Time t

ON

V

NO_

or V

NC_

= +1.5V,

R

L

= 300Ω,

C

L

= 35pF, Figure 2

T

MIN

to

170

ns

30 60

Turn-Off Time t

OFF

V

NO_

or V

NC_

= +1.5V,

R

L

= 300Ω, CL = 35pF,

Figure 2

T

MIN

to

70

ns

40

Break-Before-Make (MAX4733 Only, Note 8)

t

BBM

V

NO_

or V

NC_

= +1.5V,

R

L

= 300Ω, CL = 35pF,

Figure 3

T

MIN

to

1

ns

Charge Injection Q

V

GEN

= 0V, R

GEN

= 0, CL = 1.0nF,

Figure 4

7.5 pC

On-Channel -3dB Bandwidth BW Signal = 0dBm, 50Ω in and out

MHz

Off-Isolation (Note 9) V

ISO

f = 1MHz, V

COM_

= 1V

RMS

,

R

L

= 50Ω, CL = 5pF,

Figure 5

-72 dB

Crosstalk (Note 10) V

CT

f = 1MHz, V

COM_

= 1V

RMS

,

R

L

= 50Ω, CL = 5pF,

Figure 6

dB

NO_ or NC_ Off-Capacitance C

OFF

f = 1MHz, Figure 7

20 pF

COM_ Off-Capacitance

)

f = 1MHz, Figure 7

20 pF

COM_ On-Capacitance

)

f = 1MHz, Figure 7

40 pF

LOGIC INPUT

Input Logic High V

IH

1.4 V

Input Logic Low V

IL

0.8 V

Input Leakage Current I

IN

V

IN_

= 0V or V+ -1

+1 µA

SUPPLY

Power-Supply Range V+ 2.0 11 V

Positive Supply Current I+

V+ = +5.5V, V

IN_

= 0V or V+,

all switches on or off

1µA

SYMBOL

C

COM_(OFF

C

COM_(ON

MIN TYP MAX

+25°C

T

MAX

+25°C

T

MAX

+25°C

T

MAX

+25°C

+25°C 300

+25°C

+25°C -108

+25°C

+0.005

0.0001

MAX4731/MAX4732/MAX4733

50

Ω,

Dual SPST Analog Switches in UCSP

4 _______________________________________________________________________________________

ELECTRICAL CHARACTERISTICS—Single +5V Supply

(V+ = +5V ±10%, VIH= +2.0V, VIL= +0.8V, TA= T

MIN

to T

MAX

, unless otherwise noted. Typical values are at V+ = +5V, TA= +25°C.)

(Notes 3, 4)

PARAMETER

CONDITIONS T

A

UNITS

ANALOG SWITCH

Analog Signal Range

V

COM_

,

0V+V

8.5 25

On-Resistance R

ON

V+ = +4.5V, I

COM_

= 5mA,

V

NO_

or V

NC_

= +3.5V

T

MIN

to

30

Ω

0.2 3

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

∆R

ON

V+ = +4.5V, I

COM_

= 5mA,

V

NO_

or V

NC_

= +3.5V

T

MIN

to

4

Ω

25

On-Resistance Flatness (Note 7)

)

V+ = +4.5V, I

COM_

= 5mA,

V

NO_

or V

NC_

= +1V, +2V, +3V

T

MIN

to

7

Ω

NO_ or NC_ Off-Leakage Current (Note 8)

)

V+ = +5.5V, V

COM_

= +1V, +4.5V;

V

NO_

or V

NC_

= +4.5V, +1V

T

MIN

to

-2 +2

nA

COM_ Off-Leakage Current (Note 8)

)

V+ = +5.5V, V

COM_

= +1V, +4.5V;

V

NO_

or V

NC_

= +4.5V, +1V

T

MIN

to

-2 +2

nA

COM_ On-Leakage Current (Note 8)

)

V+ = +5.5V, V

COM_

= +1V, +4.5V;

V

NO_

or V

NC_

= +1V, +4.5V, or

floating

T

MIN

to

-4 +4

nA

DYNAMIC CHARACTERISTICS

47 85

Turn-On Time t

ON

V

NO_

or V

NC_

= +3.0V,

R

L

= 300Ω, CL = 35pF,

Figure 2

T

MIN

to

95

ns

23 45

Turn-Off Time t

OFF

V

NO_

or V

NC_

= +3.0V,

R

L

= 300Ω, CL = 35pF,

Figure 2

T

MIN

to

55

ns

25

Break-Before-Make (MAX4733 Only, Note 8)

t

BBM

V

NO_

or V

NC_

= +3.0V,

R

L

= 300Ω, CL = 35pF,

Figure 3

T

MIN

to

1

ns

Charge Injection Q

V

GEN

= 0V, R

GEN

= 0,

C

L

= 1.0nF, Figure 4

7.5 pC

On-Channel Bandwidth BW

Signal = 0dBm, 50Ω in and out

MHz

Off-Isolation (Note 9) V

ISO

f = 1MHz, V

COM_

= 1V

RMS

,

R

L

= 50Ω, CL = 5pF,

Figure 5

-72 dB

SYMBOL

V

, V

NO_

R

FLAT(ON

I

NO_(OFF

I

NC_(OFF

I

COM_(OFF

I

COM_(ON

NC_

MIN TYP MAX

+25°C

T

MAX

+25°C

T

MAX

+25°C

T

MAX

+25°C -0.1 +0.1

T

MAX

+25°C -0.1 +0.1

T

MAX

+25°C -0.2 +0.2

T

MAX

+25°C

T

MAX

+25°C

T

MAX

+25°C

T

MAX

+25°C

+25°C 300

+25°C

MAX4731/MAX4732/MAX4733

50

Ω,

Dual SPST Analog Switches in UCSP

_______________________________________________________________________________________ 5

Note 3: The algebraic convention, where the most negative value is a minimum and the most positive value a maximum, is used in

this data sheet.

Note 4: UCSP and TDFN parts are 100% tested at +25°C only, and guaranteed by design over temperature. µMAX parts are

100% tested at +85°C and +25°C and guaranteed by design over temperature.

Note 5: ∆R

ON

= R

ON(MAX)

- R

ON(MIN)

.

Note 6: UCSP on-resistance matching between channels and on-resistance flatness guaranteed by design. Note 7: Flatness is defined as the difference between the maximum and minimum value of on-resistance as measured over the

specified analog signal range.

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

10(VNO_/VCOM_

), V

NO_

= output, V

COM_

= input to off switch.

Note 10: Between any two switches.

ELECTRICAL CHARACTERISTICS—Single +5V Supply

(V+ = +5V ±10%, VIH= +2.0V, VIL= +0.8V, TA= T

MIN

to T

MAX

, unless otherwise noted. Typical values are at V+ = +5V, TA= +25°C.)

(Notes 3, 4)

PARAMETER

SYMBOL

CONDITIONS T

A

MIN

TYP

MAX

UNITS

Crosstalk (Note 10) V

CT

f = 1MHz, V

COM_

= 1V

RMS

,

R

L

= 50Ω, CL = 5pF,

Figure 6

dB

NO_ or NC_ Off-Capacitance C

OFF

f = 1MHz, Figure 7

20 pF

COM_ Off-Capacitance

)

f = 1MHz, Figure 7

20 pF

COM_ On-Capacitance

)

f = 1MHz, Figure 7

40 pF

LOGIC INPUT

Input Logic High V

IH

2.0 V

Input Logic Low V

IL

0.8 V

Input Leakage Current I

IN

V

IN_

= 0V or V+ -1

+1 µA

SUPPLY

Power-Supply Range V+ 2.0 11 V

Positive Supply Current I+

V+ = +5.5V, V

IN_

= 0V or V+,

all switches on or off

1µA

C

COM_(OFF

C

COM_(ON

+25°C -108

+25°C

+0.005

0.0001

MAX4731/MAX4732/MAX4733

50

Ω,

Dual SPST Analog Switches in UCSP

6 _______________________________________________________________________________________

Typical Operating Characteristics

(TA = +25°C, unless otherwise noted.)

ON-RESISTANCE vs. V

COM

MAX4731-33 toc01

V

COM

(V)

R

ON

(Ω)

8642

10

20

30

40

50

0

010

V+ = +2.0V

V+ = +3.0V

V+ = +5.0V

V+ = +10.0V

ON-RESISTANCE

vs. V

COM

(V+ = +2.5V)

MAX4731-33 toc02

V

COM

(V)

R

ON

(Ω)

2.01.51.00.5

10

15

20

25

30

5

0 2.5

TA = +85°C

TA = -40°C

TA = +25°C

ON-RESISTANCE

vs. V

COM

(V+ = +3.0V)

MAX4731-33 toc03

V

COM

(V)

R

ON

(Ω)

2.01.51.00.5

10

15

20

25

30

0

5

03.02.5

TA = +85°C

TA = -40°C

TA = +25°C

ON-RESISTANCE

vs. V

COM

(V+ = +5.0V)

MAX4731-33 toc04

V

COM

(V)

R

ON

(Ω)

4321

4

8

12

16

20

0

05

TA = +85°C

TA = -40°C

TA = +25°C

ON/OFF-LEAKAGE CURRENT

vs. TEMPERATURE

MAXZ4731-33 toc05

TEMPERATURE (°C)

ON/OFF-LEAKAGE CURRENT (pA)

6040200-20

1

10

100

1000

0

-40 80

V+ = +5V

ON-LEAKAGE

OFF-LEAKAGE

CHARGE INJECTION vs. V

COM

MAX4731-33 toc06

V

COM

(V)

CHARGE INJECTION (pC)

4321

5

10

15

20

25

30

35

40

45

0

05

V+ = +5.0V

V+ = +3.0V

SUPPLY CURRENT vs. TEMPERATURE

MAX4731-33 toc07

TEMPERATURE (°C)

SUPPLY CURRENT (nA)

8060-20 0 20 40

0.5

1.0

1.5

2.0

2.5

3.0

3.5

4.0

0

-40

V+ = +5V, +3V

LOGIC THRESHOLD VOLTAGE

vs. SUPPLY VOLTAGE

MAX4731-33 toc08

V+ (V)

LOGIC THRESHOLD VOLTAGE (V)

10864

0.5

1.0

1.5

2.0

2.5

3.0

0

2

VIN RISING OR FALLING

TURN-ON/OFF TIME

vs. SUPPLY VOLTAGE

MAX4731-33 toc09

V+ (V)

t

ON/OFF

(ns)

864

20

40

60

80

100

120

0

210

t

ON

t

OFF

Applications Information

Operating Considerations for

High-Voltage Supply

The MAX4731/MAX4732/MAX4733 operate to +11V with some precautions. The absolute maximum rating for V+ is +12V (referenced to GND). When operating near this region, bypass V+ with a minimum 0.1µF capacitor to ground as close to the IC as possible.

Logic Levels

The MAX4731/MAX4732/MAX4733 are TTL compatible when powered from a single +5V supply. When powered from other supply voltages, the logic inputs should be driven rail-to-rail. For example, with a +11V supply, IN1 and IN2 should be driven low to 0V and high to 11V. With a +3.3V supply, IN1 and IN2 should be driven low to 0V and high to 3.3V. Driving IN1 and IN2 railto-rail minimizes power consumption.

MAX4731/MAX4732/MAX4733

50

Ω,

Dual SPST Analog Switches in UCSP

_______________________________________________________________________________________ 7

Pin Description

Typical Operating Characteristics (continued)

(TA = +25°C, unless otherwise noted.)

TURN-ON/OFF TIME vs. TEMPERATURE

MAX4731-33 toc10

TEMPERATURE (°C)

t

ON/OFF

(ns)

6040-20 0 20

10

20

30

40

50

60

70

80

0

-40 80

tON, V+ = +3.0V

tON, V+ = +5.0V

t

OFF

,

V+ = +3.0V

t

OFF

,

V+ = +5.0V

FREQUENCY RESPONSE

MAX4731-33 toc11

FREQUENCY (Hz)

LOSS (dB)

100M10M1M100k

-100

-80

-60

-40

-20

0

-120 10k 1G

ON-LOSS

V+ = +3V

OFF-ISOLATION

CROSSTALK

TOTAL HARMONIC DISTORTION

vs. FREQUENCY

MAX4731-33 toc12

FREQUENCY (Hz)

THD (%)

10k1k100

0.001

0.01

0.1

1

0.0001 10 100k

V

COM

= 2V

P-P

BW = 30kHz

RL = 1k

Ω

V+ = +3.0V

RL = 1k

Ω

V+ = +5.0V

RL = 100k

Ω

V+ = +3.0V

RL = 100k

Ω

V+ = +5.0V

MAX4731 MAX4732 MAX4733

UCSP

µMAX/

TDFN

µMAX/

TDFN

UCSP

TDFN

NAME FUNCTION

A1 1 —— A1 1 NO1 Analog-Switch Normally Open Terminal

A2 2 A2 2 A2 2 COM1 Analog-Switch Common Terminal

A3 4 A3 4 A3 4 GND Ground. Connect to digital ground.

B1 7 B1 7 B1 7 IN1 Logic-Control Digital Input

B3 3 B3 3 B3 3 IN2 Logic-Control Digital Input

C1 8 C1 8 C1 8 V+ Positive Supply Voltage Input

C2 6 C2 6 C2 6 COM2 Analog-Switch Common Terminal

C3 5 —— ——NO2 Analog-Switch Normally Open Terminal

——A1 1 ——NC1 Analog-Switch Normally Closed Terminal

——C3 5 C3 5 NC2 Analog-Switch Normally Closed Terminal

—

EP (TDFN

y)

—

EP (TDFN

y)

—

EP (TDFN

y)

EP Exposed Pad. Connect to V+.

UCSP

µMAX/

onl

MAX4731/MAX4732/MAX4733

Analog Signal Levels

Analog signals that range over the entire supply voltage (GND to V+) pass with very little change in RON(see Typical Operating Characteristics). The bidirectional switches allow NO_, NC_, and COM_ connections to be used as either inputs or outputs.

Power-Supply Sequencing and

Overvoltage Protection

CAUTION: Do not exceed the absolute maximum ratings. Stresses beyond the listed ratings can cause permanent damage to the devices.

Proper power-supply sequencing is recommended for all CMOS devices. Always apply V+ before applying analog signals, especially if the analog signal is not current limited. If this sequencing is not possible, and if the analog inputs are not current limited to < 20mA, add a small-signal diode, D1, as shown in Figure 1. If the analog signal can dip below GND, add D2. Adding protection diodes reduces the analog signal range to a diode drop (about 0.7V) below V+ (for D1), and to a diode drop above ground (for D2). Leakage is unaffected by adding the diodes. On-resistance increases slightly at low supply voltages. Maximum supply voltage (V+) must not exceed +11V.

Adding protection diodes causes the logic thresholds to be shifted relative to the power-supply rails. The most significant shift occurs when using low supply voltages (+5V or less). With a +5V supply, TTL compatibility is not guaranteed when protection diodes are added. Driving IN1 and IN2 all the way to the supply rails (i.e., to a diode drop higher than the V+ pin, or to a diode drop lower than the GND pin) is always acceptable.

Protection diodes D1 and D2 also protect against some overvoltage situations. Using the circuit in Figure 1, no damage results if the supply voltage is below the absolute maximum rating (+12V) and if a fault voltage up to the absolute maximum rating (V+ + 0.3V) is applied to an analog signal terminal.

UCSP Applications Information

For the latest application details on USCP construction, dimensions, tape carrier information, printed circuit board techniques, bump-pad layout, and recommended reflow temperature profile as well as the latest information on reliability testing results, go to the Maxim web site at www.maxim-ic.com/ucsp to find the Application Note: UCSP—A Wafer-Level Chip-Scale Package.

50

Ω,

Dual SPST Analog Switches in UCSP

8 _______________________________________________________________________________________

MAX4731 MAX4732 MAX4733

NO_ COM_

GND

V+

*INTERNAL PROTECTION DIODES.

D2

D1

EXTERNAL BLOCKING DIODE

GND

V+

*

Figure 1. Overvoltage Protection Using External Blocking Diodes

Test Circuits/Timing Diagrams

MAX4731/MAX4732/MAX4733

50

Ω,

Dual SPST Analog Switches in UCSP

_______________________________________________________________________________________ 9

Test Circuits/Timing Diagrams (continued)

50%

V

IL

LOGIC INPUT

R

L

300

Ω

IN_

C

L

INCLUDES FIXTURE AND STRAY CAPACITANCE.

(

R

L

)

V

N_

V

IH

t

OFF

0V

NO_ OR NC_

0.9 x V

OUT

0.9 x V

OUT

t

ON

V

OUT

SWITCH OUTPUT

LOGIC INPUT

LOGIC INPUT WAVEFORMS INVERTED FOR SWITCHES THAT HAVE THE OPPOSITE LOGIC SENSE.

V+ COM_

C

L

35pF

V+

V

OUT

MAX4731 MAX4732 MAX4733

GND

R

L

+ R

ON

tr < 5ns t

f

< 5ns

V

OUT

= V

N_

Figure 2. Switching Time

50%

0.9 x V

0UT1

V+

0V

LOGIC

INPUT

SWITCH

OUTPUT 2

(V

OUT2

)

0V

0.9 x V

OUT2

t

BBM

t

BBM

LOGIC INPUT

R

L2

300

Ω

GND

C

L

INCLUDES FIXTURE AND STRAY CAPACITANCE.

NC2

IN2

IN1

NO1

V

OUT2

V+

C

L2

35pF

V

N_

R

L1

300

Ω

V

OUT1

C

L1

35pF

COM1

COM2

SWITCH

OUTPUT 1

(V

OUT1

)

MAX4733

tr < 5ns t

f

< 5ns

Figure 3. Break-Before-Make Interval (MAX4733 only)

V

GEN

GND

COM

C

L

1nF

V

OUT

V+

V

OUT

IN

OFF

ON

OFF

∆V

OUT

Q = (∆V

OUT

)(CL)

NC_ OR NO_

IN DEPENDS ON SWITCH CONFIGURATION; INPUT POLARITY DETERMINED BY SENSE OF SWITCH.

OFF

ON

OFF

IN

V

IL

TO V

IH

V+

R

GEN

IN_

MAX4731 MAX4732 MAX4733

Figure 4. Charge Injection

MAX4731/MAX4732/MAX4733

50

Ω,

Dual SPST Analog Switches in UCSP

10 ______________________________________________________________________________________

IN_

V

IL

OR V

IH

SIGNAL GENERATOR 0dBm

V+

10nF

ANALYZER

NC_ OR NO_

R

L

GND

COM_

V+

MAX4731 MAX4732 MAX4733

V-

NOTE: DUAL SUPPLIES USED TO ACCOMODATE GROUND-REFERENCED INSTRUMENTS.

10nF

Figure 5. Off-Isolation/On-Channel Bandwidth

SIGNAL GENERATOR 0dBm

V+

10nF

ANALYZER

NO2/NC2

R

L

COM1

0 OR 2.4V

IN1

NO1/NC1

50Ω

COM2

IN2

0 OR 2.4V

N.C.

V+

MAX4731 MAX4732 MAX4733

GND

V-

NOTE: DUAL SUPPLIES USED TO ACCOMODATE GROUND-REFERENCED INSTRUMENTS.

10nF

Figure 6. Crosstalk

CAPACITANCE

METER

NC_ OR NO_

COM_

GND

IN_

V

IL

OR V

IH

10nF

V+

f = 1MHz

V+

MAX4731 MAX4732 MAX4733

Figure 7. Channel Off/On-Capacitance

Chip Information

TRANSITOR COUNT: 68

PROCESS: CMOS

Test Circuits/Timing Diagrams (continued)

MAX4731/MAX4732/MAX4733

50

Ω,

Dual SPST Analog Switches in UCSP

______________________________________________________________________________________ 11

TOP VIEW

µMAX

8

7

6

5

1

2

3

4

V+

IN1

COM2

NO2

GND

IN2

COM1

NO1

MAX4731 MAX4733

µMAX

8

7

6

5

1

2

3

4

V+

IN1

COM2

NC2

GND

IN2

COM1

NO1

µMAX

8

7

6

5

1

2

3

4

V+

IN1

COM2

NC2

GND

IN2

COM1

NC1

MAX4732

MAX4733

NC2V+

GND

IN2

IN1

NO1

COM1

COM2

A1

B1

C1

C2

C3

B3

A3A2

IN_

0

1

NO1

MAX4733

ON

OFF

SWITCHES SHOWN FOR LOGIC "0" INPUT

NC2

OFF

ON

COM1

GND

NO1

TDFN

MAX4733

COM2

NC2

IN1

1

2

IN2

3

4

8

7

6

5

UCSP

TOP VIEW

(BUMPS

ON BOTTOM)

V+

EP

EP = EXPOSED PAD

Pin Configurations/Functional Diagrams/Truth Tables (continued)

MAX4731/MAX4732/MAX4733

50

Ω,

Dual SPST Analog Switches in UCSP

12 ______________________________________________________________________________________

Package Information

(The package drawing(s) in this data sheet may not reflect the most current specifications. For the latest package outline information go to www.maxim-ic.com/packages

.)

9LUCSP, 3x3.EPS

PACKAGE OUTLINE, 3x3 UCSP

21-0093

1

K

MAX4731/MAX4732/MAX4733

50

Ω,

Dual SPST Analog Switches in UCSP

______________________________________________________________________________________ 13

6, 8, &10L, DFN THIN.EPS

H

1

2

21-0137

PACKAGE OUTLINE, 6,8,10 & 14L, TDFN, EXPOSED PAD, 3x3x0.80 mm

COMMON DIMENSIONS

SYMBOL

MIN. MAX.

A 0.70 0.80

D 2.90 3.10

E 2.90 3.10

A1

0.00 0.05

L 0.20 0.40

PKG. CODE N D2 E2 e JEDEC SPEC b [(N/2)-1] x e

PACKAGE VARIATIONS

0.25 MIN.k

A2 0.20 REF.

2.30–0.101.50–0.106T633-1 0.95 BSC MO229 / WEEA 1.90 REF0.40–0.05

1.95 REF0.30–0.050.65 BSC2.30–0.108T833-1

2.00 REF0.25–0.050.50 BSC2.30–0.1010T1033-1

2.40 REF0.20–0.05- - - - 0.40 BSC1.70–0.10 2.30–0.1014T1433-1

1.50–0.10

MO229 / WEEC

MO229 / WEED-3

0.40 BSC - - - - 0.20–0.05 2.40 REFT1433-2 14 2.30–0.101.70–0.10

T633-2 6 1.50–0.10 2.30–0.10

0.95 BSC MO229 / WEEA

0.40–0.05 1.90 REF

T833-2 8 1.50–0.10 2.30–0.10 0.65 BSC MO229 / WEEC 0.30–0.05 1.95 REF

T833-3 8 1.50–0.10 2.30–0.10 0.65 BSC MO229 / WEEC 0.30–0.05 1.95 REF

-DRAWING NOT TO SCALE-

H

2

21-0137

PACKAGE OUTLINE, 6,8,10 & 14L, TDFN, EXPOSED PAD, 3x3x0.80 mm

2.30–0.10

MO229 / WEED-3

2.00 REF0.25–0.05

0.50 BSC

1.50–0.1010T1033-2

Package Information (continued)

(The package drawing(s) in this data sheet may not reflect the most current specifications. For the latest package outline information go to www.maxim-ic.com/packages

.)

Package Information (continued)

(The package drawing(s) in this data sheet may not reflect the most current specifications. For the latest package outline information go to www.maxim-ic.com/packages

.)

MAX4731/MAX4732/MAX4733

50

Ω,

Dual SPST Analog Switches in UCSP

Maxim cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim product. No circuit patent licenses are implied. Maxim reserves the right to change the circuitry and specifications without notice at any time.

14 ____________________Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 408-737-7600

8LUMAXD.EPS

PACKAGE OUTLINE, 8L uMAX/uSOP

1

21-0036

J

REV.DOCUMENT CONTROL NO.APPROVAL

PROPRIETARY INFORMATION

TITLE:

MAX

0.043

0.006

0.014

0.120

0.198

0.026

0.007

0.037

0.0207 BSC

0.0256 BSC

A2

A1

c

e

b

A

L

FRONT VIEW

SIDE VIEW

E H

0.6–0.1

ﬂ0.50–0.1

1

TOP VIEW

D

8

A2

0.030

BOTTOM VIEW

1

6¡

S

b

L

H

E

D e

c

0¡

0.010

0.116

0.188

0.016

0.005

8

4X S

INCHES

-

A1

A

MIN

0.002

0.950.75

0.5250 BSC

0.25 0.36

2.95 3.05

4.78

0.41

0.65 BSC

5.03

0.66 6¡0¡

0.13 0.18

MAX

MIN

MILLIMETERS

- 1.10

0.05 0.15

α

DIM

Revision History

Pages changed at Rev 2: 1, 2, 7, 8, 11, 14

MAXIM MAX4731, MAX4732, MAX4733 User Manual

Specifications and Main Features

Frequently Asked Questions

User Manual