MAX4620EUD原理图各脚功能电路原理芯片引脚定义引脚图及功能-中国IC网-芯三七

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产品型号MAX4620EUD的概述

芯片MAX4620EUD概述 MAX4620EUD是一款高性能的模拟开关芯片，属于Maxim Integrated产品系列。该芯片主要用于需要高速度及低失真的信号切换应用。设计巧妙，其独特的构造使得它能够在较高频率下表现出色，适合各种工业及消费电子产品。MAX4620EUD具备低功耗、高带宽和卓越的线性度，适用于多种信号切换应用，例如音频信号处理、数据采集系统以及其他模拟信号处理电路。芯片MAX4620EUD的详细参数在探讨MAX4620EUD的详细规格时，首先关注其电气特性。MAX4620EUD的典型工作电压范围为±2.5V至±15V，能够在广泛的供电条件下稳定工作。这款芯片的工作温度范围为-40°C到+125°C，适应各种环境使用。如下是MAX4620EUD的一些关键参数： - 供电电压: - 单电源：2.5V到15V - 双电源：±2.5V到±15V - 开关特性:...

产品型号MAX4620EUD的Datasheet PDF文件预览

19-1761; Rev 0; 7/00

±±15k ꢀEDꢁ-rotected, Lowꢁkoltage, Quad,

E-ET, CMOE Analog Ewitches

General Description

____________________________Features

The MAX4620/MAX4630/MAX4640 low-voltage, high-

ESD-protected, quad, single-pole/single-throw (SPST)

analog switches are pin-compatible replacements for

the industry-standard 74HC4066 analog switch. The

normally open (NO) and normally closed (NC) pins are

protected against 15kV electrostatic discharge (ESD)

without latchup or damage. Each switch can handle

Rail-to-Rail^®analog signals. The off-leakage current is

0.5nA at +25°C. These analog switches are suitable for

low-distortion audio applications and are the preferred

solution over mechanical relays in automated test

equipment or applications where current switching is

required. They have low power requirements (0.5µW),

require less board space, and are more reliable than

mechanical relays. Each device is controlled by

TTL/CMOS input voltage levels and is bilateral.

ꢀ ESD-Protected NO/NC Pins

±±15k ꢀHumn ꢁodꢂ ꢃodeꢄ

±±15k ꢅEC ±ꢆꢆꢆ-ꢇ-ꢈ ꢉir-ꢊma Discꢋmrꢌe

±ꢍ5k ꢅEC ±ꢆꢆꢆ-ꢇ-ꢈ Contmct Discꢋmrꢌe

ꢀ Pin Couamtibꢄe witꢋ ꢅndHstrꢂ-Stmndmrd 7ꢇꢀCꢇꢆ66,

ꢃꢉXꢇꢆ66, ꢃꢉXꢇ6±ꢆ/ꢃꢉXꢇ6±±/ꢃꢉXꢇ6±ꢈ

ꢀ ꢊHmrmnteed On-Resistmnce

7ꢆΩ (umx) mt 1k

±ꢈꢆΩ (umx) mt 3k

ꢀ On-Resistmnce Fꢄmtness

ꢈΩ (tꢂa) mt 1k

6Ω (tꢂa) mt 3k

ꢀ On-Resistmnce ꢃmtcꢋinꢌ

ꢆ.1Ω (tꢂa) mt 1k

These switches feature guaranteed operation from a

+2V to +12V single supply, making them ideal for use

in battery-powered applications. The on-resistance is

70Ω max, matched between switches to 0.5Ω (typ),

and flat (2Ω typ) over the specified signal range.

The MAX4620 has four NO switches, the MAX4630 has

four NC switches, and the MAX4640 has two NO and

two NC switches. These devices are available in 14-pin

TSSOP, SO, and DIP packages.

ꢆ.6Ω (tꢂa) mt 3k

ꢀ ꢊHmrmnteed ꢆ.1nꢉ Lem5mꢌe CHrrent mt T = +ꢈ1°C

ꢉ

ꢀ +ꢈk to +±ꢈk Sinꢌꢄe-SHaaꢄꢂ koꢄtmꢌe

ꢀ TTL/CꢃOS-Loꢌic Couamtibꢄe

ꢀ Low Distortion: ꢆ.ꢆ±1%

ꢀ -3dꢁ ꢁmndwidtꢋ: >3ꢆꢆꢃꢀz

ꢀ Rmiꢄ-to-Rmiꢄ Siꢌnmꢄ Rmnꢌe

________________________Applications

Battery-Powered Systems

-in Configurations/Functional

Diagrams/Truth Tables

Audio and Video Signal Routing

Low-Voltage Data-Acquisition Systems

Sample-and-Hold Circuits

Communications Circuits

TOP VIEW

MAX4620

Relay Replacement

NO1

COM1

NO2

V+

IN1

Ordering Information

12 IN4

PART

TEMP. RANGE

-40 C to +85 C

PIN-PACKAGE

14 TSSOP

14 SO

COM2

IN2

11 NO4

10 COM4

MAX4620EUD

MAX4620ESD

MAX4620EPD

MAX4630EUD

MAX4630ESD

MAX4630EPD

IN3

COM3

NO3

14 DIP

GND

14 TSSOP

14 SO

TSSOP/SO/DIP

INPUT

SWITCH STATE

14 DIP

LOW

OFF

HIGH

Ordering Information continued at end of data sheet.

Pin Configurations/Functional Diagrams/Truth Tables

continued at end of data sheet.

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

________________________________________________________________ Maxim Integrated Products

For free samples and the latest literature, visit www.maxim-ic.com or phone 1-800-998-8800.

For small orders, phone 1-800-835-8769.

±±15k ꢀEDꢁ-rotected, Lowꢁkoltage, Quad,

E-ET, CMOE Analog Ewitches

ABSOLUTE MAXIMUM RATINGS

V+ to GND..............................................................-0.3V to +13V

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

Continuous Current (NO_, NC_, COM_)........................... 10ꢀA

Peak Current (NO_, NC_, COM_, pulsed at

Continuous Power Dissipation (T = +70°C)

14-Pin TSSOP (derate 6.3ꢀW/°C above +70°C) .........571ꢀW

14-Pin DIP (derate 10ꢀW/°C above +70°C)................800ꢀW

14-Pin SO (derate 8ꢀW/°C above +70°C)...................640ꢀW

Operating Teꢀperature Ranges

MAX46_ _E_....................................................-40°C to +85°C

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

Maxiꢀuꢀ Die Teꢀperature..............................................+150°C

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

1ꢀs 10% duty cycle)........................................................ 30ꢀA

ESD Protection per Method IEC 1000-4-2 (NO_, NC_)

Air-Gap Discharge......................................................... 15kV

Contact Discharge........................................................... 8kV

ESD Protection per Method 3015.7

V+, GND, IN_, COM_.................................................... 2.5kV

NO_, NC_....................................................................... 15kV

Note 1: Signals on NO_, NC_, COM_, or IN_ exceeding V+ or GND are claꢀped by internal diodes. Liꢀit forward current to ꢀaxiꢀuꢀ

current rating.

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.

ELECTRICAL CHARACTERISTICS—SINGLE +5V SUPPLY

(V+ = +4.5V to +5.5V, V = 2.4V, V = 0.8V, T = T

to T

unless otherwise specified. Typical values are at V+ = +5V,

MIN

MAX,

= +25°C.) (Note 2)

PARAMETER

SYMBOL

CONDITIONS

MIN

TYP

MAX

UNITS

ANALOG SWITCH

COM_

Input Voltage Range

V+

NO_

NC_

V+ = 4.5V,

= 1ꢀA,

= +25 C

0.5

COM_

On-Resistance

= 3.5V

NO_

NC_

= T

to T

MIN

MAX

V+ = 4.5V,

= 1ꢀA,

= +25 C

On-Resistance Match Between

Channels (Note 3)

COM_

= 3.5V

NO_

NC_

= T

to T

MIN

V+ = 4.5V;

= 1ꢀA;

= +25 C

On-Resistance Flatness

(Note 4)

COM_

FLAT(ON)

NO_

NC_

= T

to T

MIN

= 1V, 2.25V, 3.5V

V+ = 5.5V;

= +25 C

-0.5

-5

0.01

0.5

Off-Leakage Current

(NO_ or NC_)

(Note 5)

= 1V, 4.5V;

= 4.5V, 1V

NO_

COM_

NC_

NO_

NC_

= T

to T

MIN

_______________________________________________________________________________________

±±15k ꢀEDꢁ-rotected, Lowꢁkoltage, Quad,

E-ET, CMOE Analog Ewitches

ELECTRICAL CHARACTERISTICS—SINGLE +5V SUPPLY (continued)

(V+ = +4.5V to +5.5V, V = 2.4V, V = 0.8V, T = T

to T

unless otherwise specified. Typical values are at V+ = +5V,

MIN

MAX,

= +25°C.) (Note 2)

PARAMETER

SYMBOL

CONDITIONS

MIN

TYP

MAX

UNITS

ANALOG SWITCH

V+ = 5.5V;

= +25 C

-0.5

-5

0.01

0.5

COM_ Off-Leakage Current

(Note 5)

= 1V, 4.5V;

= 4.5V, 1V

COM_

COM_(OFF)

NO_

NC_

= T

to T

MIN

MAX

V+ = 5.5V;

= +25 C

-1

0.02

COM_ On-Leakage Current

(Note 5)

= 1V, 4.5V;

COM_

COM_(ON)

or V

= 1V,

NC_

NO_

= T

to T

-10

MIN

MAX

4.5V, or floating

LOGIC INPUT

IN_ Input High

2.4

-1

IN_ Input Low

0.8

Logic Input Leakage Current

= 0 or V+

SWITCH DYNAMIC CHARACTERISTICS

_ = 3V,

COM

= +25 C

150

180

R = 300 ,

C = 35pF,

Figure 1

Turn-On Tiꢀe

Turn-Off Tiꢀe

= T

to T

MAX

MIN

_ = 3V,

COM

= +25 C

C = 35pF,

R = 300 ,

Figure 1

OFF

= T

to T

100

MIN

MAX

_ = 3V,

= +25 C

COM

Break-Before-Make

(MAX4640 only)

R = 300 ,

C = 35pF

= T

to T

MIN

MAX

Signal = 0dBꢀ, R = R

C = 5pF, Figure 2

= 50 ,

OUT

On-Channel Bandwidth -3dB

300

MHz

Charge Injection

= 2V, C = 1.0nF, R = 0, Figure 4

GEN

NO_

NO_ or NC_ On-Capacitance

COM_ Off-Capacitance

= V

= GND, f = 1MHz, Figure 3

NC_

OFF

COM_(OFF)

= GND, f = 1MHz, Figure 3

COM_

= V

, V

= GND, f = 1MHz,

COM_

NO_ NC_

COM_ On-Capacitance

Off-Isolation (Note 6)

COM_(ON)

Figure 3

R = 50 , C = 5pF, f = 1MHz, Figure 2

-75

-45

ISO

R = 50 , C = 5pF, f = 10MHz, Figure 2

_______________________________________________________________________________________

±±15k ꢀEDꢁ-rotected, Lowꢁkoltage, Quad,

E-ET, CMOE Analog Ewitches

ELECTRICAL CHARACTERISTICS—SINGLE +5V SUPPLY (continued)

(V+ = +4.5V to +5.5V, V = 2.4V, V = 0.8V, T = T

to T

unless otherwise specified. Typical values are at V+ = +5V,

MIN

MAX,

= +25°C.) (Note 2)

PARAMETER

SYMBOL

CONDITIONS

R = 50 , C = 5pF, f = 1MHz, Figure 5

MIN

TYP

-90

MAX

UNITS

Crosstalk (Note 7)

R = 50 , C = 5pF, f = 10MHz, Figure 5

-70

Total Harꢀonic Distortion

THD

R = 600 , f = 20Hz to 20kHz

0.015

ESD Silicon-Controlled Rectifier

(SCR) Holding Current

110

ꢀA

ESD SCR Holding Voltage

POWER SUPPLY

Power-Supply Range

V+

I+

= +25 C

V+ = 5.5V,

= 0 or V+

Positive Supply Current

= T

to T

MIN

MAX

ELECTRICAL CHARACTERISTICS—SINGLE +3V SUPPLY

(V+ = +2.7V to +3.6V, V = 2.0V, V = 0.6V, T = T

to T unless otherwise specified. Typical values are at T = +25°C.) (Note 2)

MAX, A

MIN

PARAMETER

ANALOG SWITCH

SYMBOL

CONDITIONS

MIN

TYP

MAX

UNITS

COM_

Input Voltage Range

V+

NO_

NC_

V+ = 2.7V,

= 1ꢀA,

= +25 C

0.6

120

150

COM_

On-Resistance

= 1.5V

NO_

NC_

= T

to T

MIN

MAX

V+ = 2.7V,

= 1ꢀA,

= +25 C

On-Resistance Match Between

Channels (Notes 3, 8)

COM_

= 1.5V

NO_

NC_

= T

to T

MIN

V+ = 2.7;

I = 1ꢀA;

COM_

= +25 C

On-Resistance Flatness

(Notes 4, 8)

FLAT(ON)

NO_

NC_

= T

to T

MIN

= 0.5V, 1.5V, 2.2V

LOGIC INPUT

IN_ Input High

2.0

-1

IN_ Input Low

0.6

Logic Input Leakage Current

= 0 or V+

_______________________________________________________________________________________

±±15k ꢀEDꢁ-rotected, Lowꢁkoltage, Quad,

E-ET, CMOE Analog Ewitches

ELECTRICAL CHARACTERISTICS—SINGLE +3V SUPPLY (continued)

(V+ = +2.7V to +3.6V, V = 2.0V, V = 0.6V, T = T

to T unless otherwise specified. Typical values are at T = +25°C.) (Note

MAX, A

MIN

PARAMETER

SYMBOL

CONDITIONS

MIN

TYP

MAX

UNITS

SWITCH DYNAMIC CHARACTERISTICS

_ = 1.5V,

COM

= +25 C

150

250

300

100

150

R = 300 ,

C = 35pF,

Figure 1

Turn-On Tiꢀe

Turn-Off Tiꢀe

= T

to T

MAX

MIN

_ = 1.5V,

COM

= +25 C

R = 300 ,

C = 35pF,

Figure 1

OFF

= T

to T

MIN

MAX

_ = 1.5V,

= +25 C

COM

Break-Before-Make

(MAX4640 only)

R = 300 ,

C = 35pF

= T

to T

MIN

MAX

Charge Injection

= 1.5V, C = 1.0nF, R = 0, Figure 4

GEN

110

ꢀA

GEN

ESD SCR Holding Current

ESD SCR Holding Voltage

POWER SUPPLY

Power-Supply Range

V+

I+

= +25 C

V+ = 3.6V,

= 0 or V+

Positive Supply Current

= T

to T

MIN

MAX

Note 2: The algebraic convention, where the ꢀost negative value is a ꢀiniꢀuꢀ and the ꢀost positive value is a ꢀaxiꢀuꢀ, is used in

this data sheet.

Note 3: ∆R

= R

- R

ON(MAX)

ON(MIN)

Note 4: Flatness is defined as the difference between the ꢀaxiꢀuꢀ and the ꢀiniꢀuꢀ values of on-resistance as ꢀeasured over the

specified analog signal ranges.

Note 5: Leakage paraꢀeters are 100% tested at T (

), and guaranteed by correlation at +25°C.

A ꢀax

Note 6: Off-Isolation = 20log (V

/ V ), V

= output, V

= input to off switch.

10 COM

COM

Note 7: Between any two switches.

Note 8: Guaranteed by design.

_______________________________________________________________________________________

±±15k ꢀEDꢁ-rotected, Lowꢁkoltage, Quad,

E-ET, CMOE Analog Ewitches

Typical Operating Characteristics

(V+ = +5V, T = +25°C, unless otherwise specified.)

ON/OFF-LEAKAGE CURRENT

vs. TEMPERATURE

ON-RESISTANCE vs. V

AND

ON-RESISTANCE vs. V

AND

COM

TEMPERATURE

SUPPLY VOLTAGE

1000

180

160

140

120

100

V+ = 1.8V

100

V+ = 2.5V

V+ = 3.3V

= -40°C

= +25°C

V+ = 5V

= +85°C

OFF

-40

-15

0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0

(V)

0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0

(V)

TEMPERATURE (°C)

COM

TURN-ON/TURN-OFF TIME

vs. SUPPLY VOLTAGE

TURN-ON/TURN-OFF TIME

vs. TEMPERATURE

SUPPLY CURRENT vs. SUPPLY

VOLTAGE AND TEMPERATURE

100

140

120

100

V+ = 5V

= 3V

V+ = 5V

COM

OFF

-40

-15

-40

-15

TEMPERATURE (°C)

SUPPLY VOLTAGE (V)

TEMPERATURE (°C)

TURN-ON/TURN-OFF TIME

vs. V

(V+ = +5V)

CHARGE INJECTION vs. V

vs. V

(V+ = +3V)

COM

140

120

100

V+ = 3V

OFF

-5

V+ = 5V

-10

1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0

(V)

0.5

1.0

1.5

2.0

2.5

3.0

COM

(V)

COM

_______________________________________________________________________________________

±±15k ꢀEDꢁ-rotected, Lowꢁkoltage, Quad,

E-ET, CMOE Analog Ewitches

Typical Operating Characteristics (continued)

(V+ = +5V, T = +25°C, unless otherwise specified.)

TOTAL HARMONIC DISTORTION

PLUS NOISE vs. FREQUENCY

FREQUENCY RESPONSE

0.016

0.014

0.012

0.010

0.008

0.006

0.004

0.002

-20

-40

ON-LOSS

OFF

-60

-80

CROSSTALK

-100

-120

V+ = 5V

600Ω IN AND OUT

0.01

0.1

100

1000

100

FREQUENCY (Hz)

10k

100k

FREQUENCY (MHz)

-in Description

NAME

FUNCTION

MAX4620

MAX4630

MAX4640

—

NO1

NC1

COM1

NO2

NC2

COM2

IN2

Analog Switch 1 – Norꢀally Open

Analog Switch 1 – Norꢀally Closed

Analog Switch 1 – Coꢀꢀon

Analog Switch 2 – Norꢀally Open

Analog Switch 2 – Norꢀally Closed

Analog Switch 2 – Coꢀꢀon

Digital Control Input 2

—

IN3

Digital Control Input 3

GND

NO3

NC3

COM3

COM4

NO4

NC4

IN4

Ground

—

Analog Switch 3 – Norꢀally Open

Analog Switch 3 – Norꢀally Closed

Analog Switch 3 – Coꢀꢀon

Analog Switch 4 – Coꢀꢀon

Analog Switch 4 – Norꢀally Open

Analog Switch 4 – Norꢀally Closed

Digital Control Input 4

—

IN1

Digital Control Input 1

V+

Positive Supply Voltage Input

_______________________________________________________________________________________

±±15k ꢀEDꢁ-rotected, Lowꢁkoltage, Quad,

E-ET, CMOE Analog Ewitches

MAX4620

V+

MAX4630

< 20ns

MAX4640

SWITCH

OUTPUT

V+

NO_/NC_

LOGIC

INPUT

COM_

50%

SWITCH

INPUT

COM

OUT

35pF

300Ω

OFF

GND

OUT

LOGIC

INPUT

0.9 x V

OUT

0UT

SWITCH

OUTPUT

C INCLUDES FIXTURE AND STRAY CAPACITANCE.

= V

COM

OUT

(

)

R + R

Figure 1. Switching Time

MAX4620

MAX4630

MAX4640

MAX4620

MAX4630

MAX4640

V+

10nF

SIGNAL

GENERATOR 0dBm

V+

COM_

CAPACITANCE

METER

ANALYZER

NO_/NC_

GND

NO_/NC_

GND

f = 1MHz

Figure 3. Channel Off/On-Capacitance

Figure 2. Off-Isolation/On-Channel Bandwidth

_______________________________________________________________________________________

±±15k ꢀEDꢁ-rotected, Lowꢁkoltage, Quad,

E-ET, CMOE Analog Ewitches

MAX4620

MAX4630

MAX4640

V+

∆V

OUT

V+

OUT

GEN

COM_

GND

NO_/NC_

OUT

GEN

Q = (∆V )(C )

OFF

OUT

Figure 4. Charge Injection

Detailed Description

The MAX4620/MAX4630/MAX4640 are quad SPST

CMOS analog switches with circuitry providing 15kV

ESD protection on the NO and NC pins. The CMOS

switch construction provides rail-to-rail signal handling

while consuꢀing virtually no power. Each of the four

switches is independently controlled by a TTL/CMOS-

level-coꢀpatible digital input.

MAX4620

MAX4630

MAX4640

V+

10nF

SIGNAL

GENERATOR 0dBm

50Ω

NO1

IN2

COM1

Applications Information

Do not exceed the absolute ꢀaxiꢀuꢀ ratings because

stresses beyond the listed ratings ꢀay cause perꢀa-

nent daꢀage to the device.

IN1

0 OR

2.4V

0 OR 2.4V

ANALYZER

COM2

NO2

GND

Proper power-supply sequencing is recoꢀꢀended for

all CMOS devices. Always sequence V+ on first, fol-

lowed by the logic inputs, NO/NC, or COM.

Operating Considerations for

Highꢁkoltage Eupply

Figure 5. Crosstalk

The MAX4620/MAX4630/MAX4640 are capable of

+12V single-supply operation with soꢀe precautions.

The absolute ꢀaxiꢀuꢀ rating for V+ is 13V (referenced

to GND). When operating near this region, bypass V+

with a ꢀiniꢀuꢀ 0.1µF capacitor to ground as close to

the IC as possible.

_______________________________________________________________________________________

±±15k ꢀEDꢁ-rotected, Lowꢁkoltage, Quad,

E-ET, CMOE Analog Ewitches

ESD protection can be tested in various ways. Trans-

ꢀitter outputs and receiver inputs are characterized for

protection to the following:

±±15k ꢀED -rotection

The MAX4620/MAX4630/MAX4640 are 15kV ESD-pro-

tected at the NC/NO terꢀinals. To accoꢀplish this,

bidirectional SCRs are included on-chip between these

terꢀinals. When the voltages at these terꢀinals go

Beyond-the-Rails^TM, the corresponding SCR turns on in

a few nanoseconds and bypasses the surge safely to

ground. This ꢀethod is superior to using diode claꢀps

to the supplies because unless the supplies are very

carefully decoupled through low ESR capacitors, the

ESD current through the diode claꢀp could cause a

significant spike in the supplies. This ꢀay daꢀage or

coꢀproꢀise the reliability of any other chip powered by

those saꢀe supplies.

•

15kV using the Huꢀan Body Model

8kV using the Contact Discharge ꢀethod speci-

fied in IEC 1000-4-2 (forꢀerly IEC 801-2)

•

15kV using the Air-Gap Discharge ꢀethod speci-

fied in IEC 1000-4-2 (forꢀerly IEC 801-2)

ESD Test Conditions

Contact Maxiꢀ Integrated Products for a reliability

report that docuꢀents test setup, ꢀethodology, and

results.

There are diodes froꢀ NC/NO to the supplies in addi-

tion to the SCRs. There is a resistance in series with

each of these diodes to liꢀit the current into the sup-

plies during an ESD strike. The diodes protect these

terꢀinals froꢀ overvoltages that are not a result of ESD

strikes. These diodes also protect the device froꢀ

iꢀproper power-supply sequencing.

Human Body Model

Figure 6 shows the Huꢀan Body Model, and Figure 7

shows the waveforꢀ it generates when discharged into

a low iꢀpedance. This ꢀodel consists of a 100pF

capacitor charged to the ESD voltage of interest, which

can be discharged into the test device through a 1.5kΩ

resistor.

Once the SCR turns on because of an ESD strike, it

continues to be on until the current through it falls

below its “holding current.” The holding current is typi-

cally 110ꢀA in the positive direction (current flowing

into the NC/NO terꢀinal) at rooꢀ teꢀperature (see

Supply Current vs. Teꢀperature in the Typical

Operating Characteristics). Design the systeꢀ so that

any sources connected to NC/NO are current liꢀited to

a value below the holding current to ensure the SCR

turns off when the ESD event is finished and norꢀal

operation is resuꢀed. Also, keep in ꢀind that the hold-

ing current varies significantly with teꢀperature. The

worst case is at +85°C when the holding currents drop

to 70ꢀA. Since this is a typical nuꢀber to guarantee

turn-off of the SCRs under all conditions, the sources

connected to these terꢀinals should be current liꢀited

to not ꢀore than half this value. When the SCR is

latched, the voltage across it is approxiꢀately 3V,

depending on the polarity of the pin current. The supply

voltages do not appreciably affect the holding current.

The sources connected to the COM side of the switch-

es do not need to be current liꢀited since the switches

turn off internally when the corresponding SCR(s) latch-

es.

IEC 1000-4-2

The IEC 1000-4-2 standard covers ESD testing and

perforꢀance of finished equipꢀent; it does not specifi-

cally refer to ICs. The MAX4620/MAX4630/MAX4640

enable the design of equipꢀent that ꢀeets Level 4 (the

highest level) of IEC 1000-4-2, without additional ESD

protection coꢀponents.

The ꢀajor difference between tests done using the

Huꢀan Body Model and IEC 1000-4-2 is higher peak

current in IEC 1000-4-2. Because series resistance is

lower in the IEC 1000-4-2 ESD test ꢀodel (Figure 8),

the ESD withstand voltage ꢀeasured to this standard is

generally lower than that ꢀeasured using the Huꢀan

Body Model. Figure 9 shows the current waveforꢀ for

the 8kV IEC 1000-4-2 Level 4 ESD Contact Discharge

test.

The Air-Gap test involves approaching the device with

a charged probe. The Contact Discharge ꢀethod con-

nects the probe to the device before the probe is ener-

gized.

Chip Information

TRANSISTOR COUNT: 156

Even though ꢀost of the ESD current flows to GND

through the SCRs, a sꢀall portion of it goes into V+.

Therefore, it is a good idea to bypass the V+ with 0.1µF

capacitors directly to the ground plane.

PROCESS: CMOS

Beyond-the-Rails is a trademark of Maxim Integrated Products.

10 ______________________________________________________________________________________

±±15k ꢀEDꢁ-rotected, Lowꢁkoltage, Quad,

E-ET, CMOE Analog Ewitches

1500Ω

1MΩ

I 100%

90%

PEAK-TO-PEAK RINGING

(NOT DRAWN TO SCALE)

DISCHARGE

RESISTANCE

CHARGE-CURRENT

LIMIT RESISTOR

AMPERES

HIGH-

VOLTAGE

DEVICE

UNDER

TEST

36.8%

100pF

STORAGE

CAPACITOR

10%

SOURCE

TIME

CURRENT WAVEFORM

Figure 7. Human Body Model Current Waveform

Figure 6. Human Body ESD Test Model

50MΩ to 100MΩ

330Ω

100%

90%

DISCHARGE

RESISTANCE

CHARGE-CURRENT

LIMIT RESISTOR

HIGH-

VOLTAGE

DEVICE

UNDER

TEST

STORAGE

CAPACITOR

150pF

SOURCE

10%

t = 0.7ns to 1ns

30ns

60ns

Figure 9. IEC 1000-4-2 ESD Generator Current Waveform

Figure 8. IEC 1000-4-2 ESD Test Model

______________________________________________________________________________________ 11

±±15k ꢀEDꢁ-rotected, Lowꢁkoltage, Quad,

E-ET, CMOE Analog Ewitches

-in Configurations/Functional Diagrams/Truth Tables (continued)

TOP VIEW

MAX4630

MAX4640

NC1

COM1

NC2

V+

NO1

COM1

NO2

V+

IN1

12 IN4

COM2

IN2

11 NC4

10 COM4

COM2

IN2

11 NC4

10 COM4

IN3

COM3

NC3

IN3

COM3

NC3

GND

TSSOP/SO/DIP

INPUT

SWITCH STATE

INPUT

LOW

HIGH

NO1, NO2

OFF

NC3, NC4

OFF

LOW

HIGH

OFF

Ordering Information (continued)

PART

TEMP. RANGE

-40 C to +85 C

PIN-PACKAGE

14 TSSOP

14 SO

MAX4640EUD

MAX4640ESD

MAX4640EPD

14 DIP

12 ______________________________________________________________________________________

±±15k ꢀEDꢁ-rotected, Lowꢁkoltage, Quad,

E-ET, CMOE Analog Ewitches

-ac5age Information

______________________________________________________________________________________ 13

±±15k ꢀEDꢁ-rotected, Lowꢁkoltage, Quad,

E-ET, CMOE Analog Ewitches

-ac5age Information (continued)

14 ______________________________________________________________________________________

±±15k ꢀEDꢁ-rotected, Lowꢁkoltage, Quad,

E-ET, CMOE Analog Ewitches

-ac5age Information (continued)

______________________________________________________________________________________ 15

±±15k ꢀEDꢁ-rotected, Lowꢁkoltage, Quad,

E-ET, CMOE Analog Ewitches

NOTES

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.

16 ____________________Maxim Integrated -roducts, ±20 Ean Gabriel Drive, Eunnyvale, CA 94086 408ꢁ737ꢁ7600

Printed USA

is a registered tradeꢀark of Maxiꢀ Integrated Products.

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MAX4620EUD产品参数

型号:	MAX4620EUD
是否无铅：	含铅
是否Rohs认证：	不符合
生命周期：	Active
零件包装代码：	TSSOP
包装说明：	4.40 MM, 0.65 MM PITCH, MO-153AB, TSSOP-14
针数：	14
Reach Compliance Code：	unknown
风险等级：	5.17
模拟集成电路 - 其他类型：	SPST
JESD-30 代码：	R-PDSO-G14
JESD-609代码：	e0
长度：	5 mm
湿度敏感等级：	1
信道数量：	1
功能数量：	4
端子数量：	14
通态电阻匹配规范：	0.6 Ω
最大通态电阻 (Ron)：	120 Ω
最高工作温度：	85 °C
最低工作温度：	-40 °C
封装主体材料：	PLASTIC/EPOXY
封装代码：	HTSSOP
封装形状：	RECTANGULAR
封装形式：	SMALL OUTLINE, HEAT SINK/SLUG, THIN PROFILE, SHRINK PITCH
峰值回流温度（摄氏度）：	240
座面最大高度：	1.1 mm
最大供电电压 (Vsup)：	12 V
最小供电电压 (Vsup)：	2 V
标称供电电压 (Vsup)：	3 V
表面贴装：	YES
最长断开时间：	150 ns
最长接通时间：	300 ns
技术：	CMOS
温度等级：	INDUSTRIAL
端子面层：	TIN LEAD
端子形式：	GULL WING
端子节距：	0.65 mm
端子位置：	DUAL
处于峰值回流温度下的最长时间：	20
宽度：	4.4 mm
Base Number Matches：	1

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