MAX4553ESE+T - Maxim Integrated Products, Inc.

General Description

The MAX4551/MAX4552/MAX4553 are quad, low-volt-

age, single-pole/single-throw (SPST) analog switches.

Each switch is protected against ±15kV electrostatic

discharge (ESD) shocks, without latchup or damage.

On-resistance (100Ωmax) is matched between switch-

es to 4Ωmax, and is flat (8Ωmax) over the specified

signal range. Each switch can handle Rail-to-Rail®ana-

log signals. The off-leakage current is only 1nA at

+25°C and 10nA at +85°C.

The MAX4551 has four normally closed (NC) switches,

and the MAX4552 has four normally open (NO) switch-

es. The MAX4553 has two NC and two NO switches.

These CMOS switches can operate with dual power

supplies ranging from ±2V to ±6V or a single supply

between +2V and +12V. They are fully specified for sin-

gle +2.7V operation.

All digital inputs have +0.8V and +2.4V logic thresh-

olds, ensuring TTL/CMOS-logic compatibility when

using ±5V or a single +5V supply.

________________________Applications

Battery-Operated Equipment

Data Acquisition

Test Equipment

Avionics

Audio Signal Routing

Networking

____________________________Features

♦±15kV ESD Protection per IEC 1000-4-2

♦+2V to +12V Single Supply

±2V to ±6V Dual Supplies

♦120ΩSignal Paths with ±5V Supplies

♦Low Power Consumption: <1µW

♦4 Separately Controlled SPST Switches

♦Rail-to-Rail Signal Handling

♦Pin-Compatible with Industry-Standard

DG211/DG212/DG213

♦TTL/CMOS-Compatible Inputs with Dual ±5V or

Single +5V Supply

MAX4551/MAX4552/MAX4553

±15kV ESD-Protected, Quad,

Low-Voltage, SPST Analog Switches

________________________________________________________________

Maxim Integrated Products

19-1391; Rev 0; 10/98

Ordering Information

SWITCHES SHOWN FOR LOGIC "0" INPUT

QSOP/SO/DIP

MAX4552

LOGIC SWITCH

1OFF

TOP VIEW

QSOP/SO/DIP

MAX4551

LOGIC SWITCH

1ON

OFF

QSOP/SO/DIP

MAX4553

LOGIC SWITCHES

1, 4

1OFF

SWITCHES

2, 3

OFF

IN2

COM2

NC2

V+

V-

NO1

COM1

IN1

MAX4553

N.C.

NC3

COM3

IN3

IN4

COM4

NO4

GND

IN2

COM2

NC2

V+

V-

NC1

COM1

IN1

MAX4551

N.C.

NC3

COM3

IN3

IN4

COM4

NC4

GND

IN2

COM2

NO2

V+

V-

NO1

COM1

IN1

MAX4552

N.C.

NO3

COM3

IN3

IN4

COM4

NO4

GND

N.C. = NOT CONNECTED

Pin Configurations/Functional Diagrams/Truth Tables

Ordering Information continued at end of data sheet.

Contact factory for dice specifications.

PART

MAX4551CEE

MAX4551CSE

MAX4551CPE 0°C to +70°C

0°C to +70°C

TEMP. RANGE PIN-PACKAGE

16 QSOP

16 Narrow SO

16 Plastic DIP

MAX4551C/D 0°C to +70°C Dice*

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

For free samples & the latest literature: http://www.maxim-ic.com, or phone 1-800-998-8800.

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

MAX4551EEE

MAX4551ESE -40°C to +85°C

-40°C to +85°C 16 QSOP

16 Narrow SO

MAX4551EPE -40°C to +85°C 16 Plastic DIP

MAX4551/MAX4552/MAX4553

±15kV ESD-Protected, Quad,

Low-Voltage, SPST Analog Switches

2 _______________________________________________________________________________________

ABSOLUTE MAXIMUM RATINGS

ELECTRICAL CHARACTERISTICS—Dual Supplies

(V+ = +5V, ±10%, V- = -5V, ±10%, TA= TMIN to TMAX, unless otherwise noted. Typical values are at TA= +25°C.)

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

maximum current rating.

Voltages Referenced to GND

V+.....................................................................-0.3V to +13.0V

V-.....................................................................-13.0V to +0.3V

V+ to V-............................................................-0.3V to +13.0V

All Other Pins (Note 1)..........................(V- - 0.3V) to (V+ + 0.3V)

Continuous Current into Any Terminal..............................±10mA

Peak Current into Any Terminal

(pulsed at 1ms,10% duty cycle)...................................±20mA

ESD per Method 3015.7 (IN_, COM_, V+, V-, GND) .......>2500V

IEC 1000-4-2 (NO_, NC_) ..................................................±15kV

Continuous Power Dissipation (TA= +70°C)

QSOP (derate 9.52mW/°C above +70°C)....................762mW

Narrow SO (derate 8.70mW/°C above +70°C) ............696mW

Plastic DIP (derate 10.53mW/°C above +70°C) ..........842mW

Operating Temperature Ranges

MAX455_C_E......................................................0°C to +70°C

MAX455_E_E ...................................................-40°C to +85°C

Storage Temperature Range.............................-65°C to +160°C

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

V+ = 5.5V, V- = -5.5V,

VCOM_ = ±4.5V

V+ = 5.5V, V- = -5.5V,

VCOM_ = ±4.5V, VNO_ = 4.5V

V+ = 5V, V- = -5V, VNO_

or VNC_ = +3V, 0, -3V

V+ = 5.5V, V- = -5.5V,

VCOM_ = 4.5V, VNO_ = ±4.5V

V+ = 5V, V- = -5V, VNO_

or VNC_ = ±3V, ICOM_ = 1mA

V+ = 5V, V- = -5V, VNO_

or VNC_ = ±3V, ICOM_ = 1mA

CONDITIONS

C, E

nAICOM_(ON)

COM_ On-Leakage Current

(Note 6) -20 20

-2 0.01 2

nAICOM_(OFF)

COM_ Off-Leakage Current

(Note 6) -10 10

INO_(OFF),

INC_(OFF)

NO_, NC_ Off-Leakage Current

(Note 6) -1 0.01 1

VV- V+

VCOM_, VNO_,

VNC_

Analog Signal Range

(Note 3)

Ω

RFLAT(ON)

COM_ to NO_, COM_ to NC_

On-Resistance Flatness

(Note 5)

Ω

∆RON

COM_ to NO_, COM_ to NC_

On-Resistance Match Between

Channels (Note 4)

80 120 Ω

140

RON

COM_ to NO_, COM_ to NC_

On-Resistance 14

UNITS

MIN TYP MAX

(Note 2)

SYMBOLPARAMETER

C, E

+25°C

C, E

+25°C

C, E

+25°C

C, E

+25°C

-1 0.01 1

C, E -10 10

ANALOG SWITCH

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.

MAX4551/MAX4552/MAX4553

±15kV ESD-Protected, Quad,

Low-Voltage, SPST Analog Switches

_______________________________________________________________________________________ 3

ELECTRICAL CHARACTERISTICS—Dual Supplies (continued)

(V+ = +5V, ±10%, V- = -5V, ±10%, TA= TMIN to TMAX, unless otherwise noted. Typical values are at TA= +25°C.)

Channel-to-Channel Crosstalk

(Note 8) VCT

C, EVIN_ = 0.8V or 2.4V µA-1 0.03 1IINH_, IINL_

IN_ Input Current Logic High

or Low

RL= 50Ω, CL= 15pF,

VN_ = 1VRMS, f = 100kHz,

Figure 5 +25°C < -90

+25°C 70 110

Turn-On Time

CONDITIONS

C, E

tON

C, E

VCOM_ = ±3V, V+ = 5V,

V- = -5V, Figure 1

V1.6 0.8VIN_L

IN_ Input Logic Threshold Low V2.4 1.6VIN_H

IN_ Input Logic Threshold High

C, E 125 ns

+25°C 50 90

Turn-Off Time tOFF VCOM_ = ±3V, V+ = 5V,

V- = -5V, Figure 1 C, E 100 ns

Break-Before-Make Time Delay

(MAX4553 Only) tBBM VCOM_ = ±3V, V+ = 5V,

V- = -5V, Figure 2 +25°C 520 ns

Charge Injection (Note 3) Q CL= 1nF, VNO_ = 0, RS= 0,

Figure 3 +25°C 25pC

NO_, NC_ Off-Capacitance CN_(OFF) VNO_ = GND, f = 1MHz,

Figure 6 +25°C 3.5 pF

COM_ Off-Capacitance CCOM_(OFF) VCOM_ = GND, f = 1MHz,

Figure 6 +25°C 3 pF

COM_ On-Capacitance CCOM_(ON) VCOM_ = VNO_ = GND,

f = 1MHz, Figure 7 +25°C 10 pF

Off-Isolation (Note 7)

UNITS

MIN TYP MAX

(Note 2)

SYMBOLPARAMETER

VISO RL= 50Ω, CL= 15pF,

VN_ = 1VRMS, f = 100kHz,

Figure 4 +25°C < -90 dB

Power-Supply Range V+, V- C, E ±2 ±6 V

+25°C -1 0.05 1

V+ Supply Current I+ V+ = 5.5V, all VIN_ = 0 or V+ C, E -1 1 µA

+25°C -1 0.05 1

V- Supply Current I- V- = -5.5V C, E -1 1 µA

+25°C ±8Contact Discharge IEC 1000-4-2 kV+25°C ±15

On NC_ and NO_ Pins

per IEC 801-2 Air Discharge IEC 1000-4-2 +25°C ±15Human Body Model +25°C ±2.5All Pins MIL-STD-883C Method 3015 kV

SWITCH DYNAMIC CHARACTERISTICS

LOGIC INPUT

ESD PROTECTION

POWER SUPPLY

MAX4551/MAX4552/MAX4553

±15kV ESD-Protected, Quad,

Low-Voltage, SPST Analog Switches

4 _______________________________________________________________________________________

+25°C

Charge Injection (Note 3)

(Note 3)

COM_ to NO_, COM_ to NC_

On-Resistance

RON V+ = 5V, VCOM_ = 3.5V,

ICOM_ = 1mA C, E 180 Ω

CL= 1nF, VNO_ = 0, RS= 0,

Figure 3 +25°C 15

+25°C 26

COM_ to NO_, COM_ to NC_

On-Resistance Match Between

Channels (Note 4)

CONDITIONS

C, E

∆RON V+ = 5V, VCOM_ = 3.5V,

ICOM_ = 1mA

115 160

V0V+

VCOM_, VNO_,

VNC_

Analog Signal Range

C, E 8 Ω

+25°C -1 0.01 1

C, E -10 10

NO_, NC_ Off-Leakage Current

(Notes 6, 9) INO_(OFF),

INC_(OFF) V+ = 5.5V; VCOM_ = 1V, 4.5V;

VN_ = 4.5V, 1V nA

+25°C -1 0.01 1

C, E -10 10

COM_ Off-Leakage Current

(Notes 6, 9) ICOM_(OFF) V+ = 5.5V; VCOM_ = 1V, 4.5V;

VN_ = 4.5V, 1V nA

+25°C -2 0.01 2

C, E, -20 20

COM_ On-Leakage Current

(Notes 6, 9) ICOM_(ON) V+ = 5.5V; VCOM_ = 4.5V, 1V nA

IN_ Input Logic Threshold High VIN_H C, E 2.4 1.6 V

IN_ Input Logic Threshold Low VIN_L C, E 1.6 0.8 V

UNITS

MIN TYP MAX

(Note 2)

SYMBOLPARAMETER

IN_ Input Current Logic High

or Low IINH_, IINL_ VIN_ = 0.8V or 2.4V C, E -1 1 µA

+25°C 100 160

Turn-On Time tON VCOM_ = 3V, V+ = 5V,

Figure 1 C, E 170 ns

+25°C 80 140

Turn-Off Time tOFF VCOM_ = 3V, V+ = 5V,

Figure 1 C, E 150 ns

+25°C 530

Break-Before-Make Time Delay

(MAX4553 Only) tBBM VCOM_ = 3V, V+ = 5V,

Figure 2 ns

+25°C -1 0.05 1

V+ Supply Current I+ V+ = 5.5V, all VIN_ = 0 or V+ C, E -1 1 µA

+25°C ±8

ELECTRICAL CHARACTERISTICS—Single +5V Supply

(V+ = +5V, ±10%, V- = -5V, ±10%, TA= TMIN to TMAX, unless otherwise noted. Typical values are at TA= +25°C.)

Contact Discharge IEC 1000-4-2 kV

On NC_ and NO_ Pins

per IEC 801-2 Human Body Model +25°C ±15Air Discharge IEC 1000-4-2 +25°C ±15 kVAll Pins MIL-STD-883C Method 3015 +25°C ±2.5

ANALOG SWITCH

LOGIC INPUT

POWER SUPPLY

ESD PROTECTION

SWITCH DYNAMIC CHARACTERISTICS

MAX4551/MAX4552/MAX4553

±15kV ESD-Protected, Quad,

Low-Voltage, SPST Analog Switches

_______________________________________________________________________________________ 5

Note 2: The algebraic convention is used in this data sheet; the most negative value is shown in the minimum column.

Note 3: Guaranteed by design.

Note 4: ∆RON = ∆RON(MAX) - ∆RON(MIN).

Note 5: Resistance flatness is defined as the difference between the maximum and minimum on-resistance values, as measured

over the specified analog signal range.

Note 6: Leakage parameters are 100% tested at maximum rated temperature, and guaranteed by correlation at TA= +25°C.

Note 7: Off-isolation = 20log10 [ VCOM_ / (VNC_ or VNO_) ], VCOM_ = output, VNC_ or VNO_ = input to off switch.

Note 8: Between any two switches.

Note 9: Leakage testing for single-supply operation is guaranteed by testing with dual supplies.

ELECTRICAL CHARACTERISTICS—Single +3V Supply

(V+ = +2.7V to +3.6V, V- = 0, TA= TMIN to TMAX, unless otherwise noted. Typical values are at TA= +25°C.)

+25°C

Charge Injection

COM_ to NO_, COM_ to NC_

On-Resistance

RON V+ = 2.7V, VCOM_ = 1.0V,

ICOM_ = 0.1mA C, E 500 Ω

IN_ Input Logic Threshold High VIN_H C, E 2.0 1.1 V

IN_ Input Logic Threshold Low

CONDITIONS

C, E

VIN_L

= 1nF, V

NO_

= 0, R

= 0,

Figure 3

+25°C

200 400

15pC

V0V+

VCOM_, VNO_,

VNC_

Analog Signal Range

(Note 3)

C, E 1.1 0.5 V

IN_ Input Current Logic High

or Low IINH_, IINL_ VIN_ = 0.8V or 2.4V C, E -1 0.03 1 µA

+25°C 190 350

Turn-On Time tON VCOM_ = 1.5V, V+ = 2.7V,

Figure 1 C, E 400 ns

+25°C 160 250

Turn-Off Time tOFF VCOM_ = 1.5V, V+ = 2.7V,

Figure 1 C, E 300 ns

+25°C 10 50

Break-Before-Make Time Delay

(MAX4553 Only) tBBM VCOM_ = 1.5V, V+ = 3.6V,

Figure 2 ns

+25°C -1 0.05 1

V+ Supply Current

UNITS

MIN TYP MAX

(Note 2)

SYMBOLPARAMETER

I+ V+ = 3.6V, all VIN_ = 0 or V+ C, E -1 1 µA

SWITCH DYNAMIC CHARACTERISTICS (Note 4)

POWER SUPPLY

+25°C ±8Contact Discharge IEC 1000-4-2 +25°C ±15

+25°C ±15Human Body Model

On NC_ and NO_ Pins

per IEC 801-2 kV

Air Discharge IEC 1000-4-2

+25°C ±2.5MIL-STD-883C Method 3015All Pins kV

LOGIC INPUT

SWITCH DYNAMIC CHARACTERISTICS

POWER SUPPLY

ESD PROTECTION

ANALOG SWITCH

MAX4551/MAX4552/MAX4553

±15kV ESD-Protected, Quad,

Low-Voltage, SPST Analog Switches

6 _______________________________________________________________________________________

Typical Operating Characteristics

(V+ = +5V, V- = -5V, GND = 0, TA = +25°C, unless otherwise noted.)

100

110

120

130

-5 -3 -1-2-4 012345

ON-RESISTANCE

vs. VCOM (DUAL SUPPLIES)

MAX4551-01

VCOM (V)

RON (Ω)

V+ = +2V

V- = -2V

V+ = +3V

V- = -3V V+ = +4V

V- = -4V

V+ = +5V

V- = -5V

-6 -2-4 0246

ON-RESISTANCE

vs. VCOM AND TEMPERATURE

(DUAL SUPPLIES)

MAX4551-02

VCOM (V)

RON (Ω)

TA = +85°C

TA = +25°C

TA = 0°C

TA = -40°C

V+ = +5V

V- = -5V

120

100

160

140

180

200

0231 456

ON-RESISTANCE

vs. VCOM (SINGLE SUPPLY)

MAX4551-03

VCOM (V)

RON (Ω)

V+ = +3.3V

V+ = +5V

V+ = +2.7V

V- = 0

100

110

120

130

0.0 1.51.00.5 2.52.0 3.53.0 4.0 4.5 5.0

ON-RESISTANCE

vs. VCOM AND TEMPERATURE

(SINGLE SUPPLY)

MAX4551-04

VCOM (V)

RON (Ω)

TA = +25°C

TA = 0°C

TA = -40°C

TA = +85°C

V+ = +5V

V- = 0

120

160

140

100

200

180

-60 -40 -20 0 20 40 60 80 100

SCR HOLDING CURRENT

vs. TEMPERATURE

MAX4551-07

TEMPERATURE (°C)

HOLDING CURRENT (mA)

IH-

IH+

10n

0.1p -55 -25 0 25 75

ON- AND OFF-LEAKAGE CURRENT

vs. TEMPERATURE

MAX4551-05

TEMPERATURE (°C)

LEAKAGE (A)

50 100 125

100p

10p

ON-LEAKAGE

OFF-LEAKAGE

-10

-6

-8

-2

-4

-5 -3 -2 -1-4 012 435

CHARGE INJECTION

vs. VCOM

MAX4551-06

VCOM (V)

Q (pC)

V+ = +5V

V- = 0

V+ = +5V

V- = -5V

110

130

150

170

1.0 2.52.01.5 3.53.0 4.54.0 5.0 5.5 6.0

TURN-ON/TURN-OFF TIME

vs. SUPPLY VOLTAGE

MAX4551-08

SUPPLY VOLTAGE (V+, V-)

tON , tOFF (ns)

tON

tOFF

-60 -40 -20 0 20 40 60 80 100

TURN-ON/TURN-OFF TIME

vs. TEMPERATURE

MAX4551-09

TEMPERATURE (°C)

tON, tOFF (ns)

tOFF

tON

MAX4551/MAX4552/MAX4553

±15kV ESD-Protected, Quad,

Low-Voltage, SPST Analog Switches

_______________________________________________________________________________________ 7

Pin Description

0.0001 -60 -20-40 20 60 10080

POWER-SUPPLY CURRENT

vs. TEMPERATURE

0.001

0.01

0.1

MAX4551-10

TEMPERATURE (°C)

I+, I- (nA)

040

I-

I+

TOTAL HARMONIC DISTORTION

vs. FREQUENCY

MAX4551-11

FREQUENCY (Hz)

THD (%)

0.001

0.01

0.1

1 1k 10k 100k10 100 2M

V+ = +5V

V- = -5V

600Ω IN and OUT

100m 500m

-100

-90

-80

-70

-60

-40

-50

-30

-20

-10

100k 1m 10m

FREQUENCY RESPONSE

MAX4551-12

FREQUENCY (Hz)

LOSS (dB)

INSERTION LOSS

OFF-ISOLATION

ON-PHASE

50Ω IN/OUT

_____________________________Typical Operating Characteristics (continued)

(V+ = +5V, V- = -5V, GND = 0, TA= +25°C, unless otherwise noted.)

NAME FUNCTION

1, 16, 9, 8 IN1–IN4 Logic-Control Digital Inputs

2, 15, 10, 7 COM1–COM4 Analog Switch Common* Terminals

3, 14, 11, 6 NC1–NC4 Analog Switch Normally Closed Terminals

4 V- Negative Analog Supply-Voltage Input. Connect to GND for single-

supply operation.

1, 16, 9, 8

2, 15, 10, 7

—

13 V+ Positive Analog and Digital Supply Voltage Input. Internally con-

nected to substrate.

12 N.C. No Connection. Not internally connected.

—

1, 16, 9, 8

2, 15, 10, 7

NO1–NO4

—

MAX4551 MAX4552 MAX4553

5 GND Ground. Connect to digital ground. (Analog signals have no ground

reference; they are limited to V+ and V-.)

Analog Switch Normally Open Terminals3, 14, 11, 6 —

—NO1, NO4 Analog Switch Normally Open Terminals— 3, 6

—NC2, NC3 Analog Switch Normally Closed Terminals— 14, 11

*NO_ (or NC_) and COM_ pins are identical and interchangeable. Either may be considered as an input or output; signals pass

equally well in either direction.

MAX4551/MAX4552/MAX4553

±15kV ESD-Protected, Quad,

Low-Voltage, SPST Analog Switches

8 _______________________________________________________________________________________

Applications Information

MAX4551/MAX4552/MAX4553

±15kV ESD Protection

The MAX4551/MAX4552/MAX4553 are ±15kV ESD-pro-

tected according to IEC 1000-4-2 at their NC/NO pins.

To accomplish this, bidirectional SCRs are included on-

chip between these pins and the GND pin. In normal

operation, these SCRs are off and have negligible

effect on the performance of the switches. When there

is an ESD strike at these pins, however, the voltages at

these pins go Beyond-the-Rails™ and cause the corre-

sponding SCR(s) to turn on in a few nanoseconds and

bypass the surge safely to ground. This method is

superior to using diode clamps to the supplies because

unless the supplies are very carefully decoupled

through low ESR capacitors, the ESD current through

the diode clamp could cause a significant spike in the

supplies. This may damage or compromise the reliabili-

ty of any other chip powered by those same supplies.

In the MAX4551/MAX4552/MAX4553, there are diodes

to the supplies in addition to the SCRs at the NC/NO

pins, but there is a resistance in series with these

diodes to limit the current into the supplies during an

ESD strike. The diodes are present to protect these

pins from overvoltages that are not as a result of ESD

strikes like those that may occur due to improper

power-supply sequencing.

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 110mA in the positive direction (current flowing

into the NC/NO pin) and 95mA in the negative direction

at room temperature (see SCR Holding Current vs.

Temperature in the

Typical Operating Characteristics

The system should be designed such that any sources

connected to these pins are current limited to a value

below these to make sure the SCR turns off when the

ESD event gets over to resume normal operation. Also,

keep in mind that the holding current varies significant-

ly with temperature. At +85°C, which represents the

worst case, the holding currents drop to 70mA and

65mA in the positive and negative directions respec-

tively. Since these are typical numbers, to get guaran-

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

sources connected to these pins should be current lim-

ited to not more than half these values. When the SCR

is latched, the voltage across it is about ±3V, depend-

ing on the polarity of the pin current. The supply volt-

ages do not affect the holding currents appreciably.

The sources connected to the COM side of the switches

do not need to be current limited since the switches are

made to turn off internally when the corresponding

SCR(s) get latched.

Even though most of the ESD current flows to GND

through the SCRs, a small portion of it goes into the

supplies. Therefore, it is a good idea to bypass the

supply pins with 100nF capacitors directly to the

ground plane.

ESD protection can be tested in various ways. Trans-

mitter outputs and receiver inputs are characterized for

protection to the following:

• ±15kV using the Human Body Model

• ±8kV using the Contact Discharge method speci-

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

• ±15kV using the Air-Gap Discharge method speci-

fied in IEC 1000-4-2 (formerly IEC 801-2).

ESD Test Conditions

Contact Maxim for a reliability report that documents

test setup, methodology, and results.

Human Body Model

Figure 8 shows the Human Body Model, and Figure 9

shows the current waveform it generates when dis-

charged into a low impedance. This model consists of

a 100pF capacitor charged to the ESD voltage of inter-

est, which is then discharged into the test device

through a 1.5kΩresistor.

IEC 1000-4-2

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

performance of finished equipment; it does not specifi-

cally refer to integrated circuits. The MAX4551/MAX4552/

MAX4553 enable the design of equipment that meets

Level 4 (the highest level) of IEC 1000-4-2, without

additional ESD protection components.

The major difference between tests done using the

Human 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 model (Figure 10),

the ESD withstand voltage measured to this standard

is generally lower than that measured using the

Human Body Model. Figure 11 shows the current

waveform 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 method

connects the probe to the device before the probe is

energized.

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

Power-Supply Considerations

Overview

The MAX4551/MAX4552/MAX4553 construction is typi-

cal of most CMOS analog switches. They have three

supply pins: V+, V-, and GND. V+ and V- are used to

drive the internal CMOS switches, and they set the lim-

its of the analog voltage on any switch. Reverse ESD-

protection diodes are internally connected between

each analog-signal pin and both V+ and V-. If any ana-

log signal exceeds V+ or V-, one of these diodes con-

ducts. During normal operation these reverse-biased

ESD diodes leak, forming the only current drawn from

V+ or V-.

Virtually all the analog leakage current is through the

ESD diodes. Although the ESD diodes on a given sig-

nal pin are identical and therefore fairly well balanced,

they are reverse biased differently. Each is biased by

either V+ or V- and the analog signal. This means their

leakages vary as the signal varies. The

difference

in the

two diode leakages from the signal path to the V+ and

V- pins constitutes the analog-signal-path leakage cur-

rent. All analog leakage current flows to the supply ter-

minals, not to the other switch terminal. This explains

how both sides of a given switch can show leakage

currents of the same or opposite polarity.

The analog signal paths consist of an N-channel and P-

channel MOSFET with their sources and drains paral-

leled, and their gates driven out of phase to V+ and V-

by the logic-level translators.

V+ and GND power the internal logic and logic-level

translators, and set the input logic thresholds. The

logic-level translators convert the logic levels to

switched V+ and V- signals, to drive the gates of the

analog switches. This drive signal is the only connec-

tion between the logic supplies and the analog sup-

plies. V+ and V- have ESD-protection diodes to GND.

The logic-level inputs and output have ESD protection

to V+ and to GND.

Increasing V- has no effect on the logic-level thresh-

olds, but it does increase the drive to the P-channel

switches, reducing their on-resistance. V- also sets the

negative limit of the analog signal voltage.

The logic-level thresholds are CMOS/TTL compatible

when V+ = +5V. The threshold increases slightly as V+

is raised, and when V+ reaches +12V, the level thresh-

old is about 3.1V. This is above the TTL output high-

level minimum of 2.8V, but still compatible with CMOS

outputs.

Bipolar Supplies

The MAX4551/MAX4552/MAX4553 operate with bipolar

supplies between ±2V and ±6V. The V+ and V- sup-

plies need not be symmetrical, but their sum cannot

exceed the absolute maximum rating of 13.0V. Do not

connect the MAX4551/MAX4552/MAX4553 V+ to +3V,

and then connect the logic-level-input pins to TTL

logic-level signals. TTL logic-level outputs in excess

of the absolute maximum ratings can damage the

part and/or external circuits.

Caution: The absolute maximum V+ to V- differential

voltage is 13.0V. Typical ±6V or 12V supplies with

±10% tolerances can be as high as 13.2V. This voltage

can damage the MAX4551/MAX4552/MAX4553. Even

±5% tolerance supplies may have overshoot or noise

spikes that exceed 13.0V.

Single Supply

The MAX4551/MAX4552/MAX4553 operate from a

single supply between +2V and +12V when V- is con-

nected to GND. All of the bipolar precautions must be

observed.

High-Frequency Performance

In 50Ωsystems, signal response is reasonably flat up

to 50MHz (see

Typical Operating Characteristics

Above 20MHz, the on-response has several minor

peaks that are highly layout-dependent. The problem

with high-frequency operation is not turning the switch

on, but turning it off. The off-state switch acts like a

capacitor and passes higher frequencies with less

attenuation. At 10MHz, off-isolation is about -52dB in

50Ωsystems, becoming worse (approximately 20dB

per decade) as frequency increases. Higher circuit

impedances also make off-isolation worse. Adjacent

channel attenuation is about 3dB above that of a bare

IC socket, and is due entirely to capacitive coupling.

MAX4551/MAX4552/MAX4553

±15kV ESD-Protected, Quad,

Low-Voltage, SPST Analog Switches

_______________________________________________________________________________________ 9

MAX4551/MAX4552/MAX4553

±15kV ESD-Protected, Quad,

Low-Voltage, SPST Analog Switches

10 ______________________________________________________________________________________

VGEN GND

NC or

VOUT

-5V

V-

V+ VOUT

IN OFF ON OFF

∆VOUT

Q = (∆VOUT)(CL)

COM

IN DEPENDS ON SWITCH CONFIGURATION;

INPUT POLARITY DETERMINED BY SENSE OF SWITCH.

OFF ON OFF

VIN = +3V

+5V

RGEN

MAX4551

MAX4552

MAX4553

Figure 3. Charge Injection

tr < 20ns

tf < 20ns

50%

LOGIC

INPUT

V-

-5V

300Ω

or NC

GND

CL INCLUDES FIXTURE AND STRAY CAPACITANCE.

VOUT = VCOM ( RL )

RL + RON

SWITCH

INPUT

IN, EN

+3V

tOFF

COM

SWITCH

OUTPUT

0.9 · V0UT 0.9 · VOUT

tON

VOUT

SWITCH

OUTPUT

LOGIC

INPUT

LOGIC INPUT WAVEFORMS INVERTED FOR EN AND SWITCHES

THAT HAVE THE OPPOSITE LOGIC SENSE.

35pF

+5V

V+

VOUT

VCOM

MAX4551

MAX4552

MAX4553

50%

0.9 · V0UT1

+3V

LOGIC

INPUT

SWITCH

OUTPUT 2

(VOUT2)

0.9 · VOUT2

tDtD

LOGIC

INPUT V-

-5V

RL2

GND

CL INCLUDES FIXTURE AND STRAY CAPACITANCE.

COM2

IN1, 2

COM1

VOUT2

V+

+5V

CL2

VCOM1

RL1

VOUT1

CL1

RL = 300Ω

CL = 35pF

NC SWITCH

OUTPUT 1

(VOUT1)

MAX4553

VCOM2

Figure 1. Switching Time

Figure 2. Break-Before-Make Interval (MAX4553 only)

Test Circuits/Timing Diagrams

MAX4551/MAX4552/MAX4553

±15kV ESD-Protected, Quad,

Low-Voltage, SPST Analog Switches

______________________________________________________________________________________ 11

Figure 5. Crosstalk

IN 0 or

2.4V

SIGNAL

GENERATOR 0dBm

+5V

10nF

ANALYZER NC

or NO

RLGND

COM

10nF

V-

V+

MAX4551

MAX4552

MAX4553

SIGNAL

GENERATOR 0dBm

+5V

10nF

ANALYZER N02

RLGND

COM1

10nF

V-

0V or 2.4V IN1

N01 50Ω

COM2

IN2 0 or 2.4V

V+

MAX4551

MAX4552

MAX4553

Figure 4. Off-Isolation

Test Circuits/Timing Diagrams (continued)

CAPACITANCE

METER

or NO

COM

GND 10nF

V-

IN 0 or

2.4V

10nF +5V

f = 1MHz

V+

MAX4551

MAX4552

MAX4553

Figure 7. Channel On-Capacitance

CAPACITANCE

METER NC

or NO

COM

GND 10nF

V-

IN 0 or

2.4V

10nF +5V

f = 1MHz

V+

MAX4551

MAX4552

MAX4553

Figure 6. Channel Off-Capacitance

MAX4551/MAX4552/MAX4553

±15kV ESD-Protected, Quad,

Low-Voltage, SPST Analog Switches

12 ______________________________________________________________________________________

CHARGE-CURRENT

LIMIT RESISTOR DISCHARGE

RESISTANCE

STORAGE

CAPACITOR

100pF

1M RD

1500Ω

HIGH-

VOLTAGE

SOURCE

DEVICE

UNDER

TEST

IP 100%

90%

36.8%

tRL TIMEtDL

CURRENT WAVEFORM

PEAK-TO-PEAK RINGING

(NOT DRAWN TO SCALE)

10%

AMPERES

Figure 8. Human Body ESD Test Model Figure 9. Human Body Model Current Waveform

CHARGE-CURRENT

LIMIT RESISTOR DISCHARGE

RESISTANCE

STORAGE

CAPACITOR

150pF

50M to 100M RD

330Ω

HIGH-

VOLTAGE

SOURCE

DEVICE

UNDER

TEST

Figure 10. IEC 1000-4-2 ESD Test Model

tr = 0.7ns to 1ns 30ns 60ns

100%

90%

10%

IPEAK

Figure 11. IEC 1000-4-2 ESD Generator Current Waveform

MAX4551/MAX4552/MAX4553

±15kV ESD-Protected, Quad,

Low-Voltage, SPST Analog Switches

______________________________________________________________________________________ 13

Chip Topographies

COM3

IN3

IN4

COM4

NC2 NC3

V+

0.080"

(2.03mm)

0.061"

(1.55mm)

NC1 V- NC4

GND

COM2

IN2

IN1

COM1

MAX4551

COM3

IN3

IN4

COM4

NO2 NO3

V+

0.080"

(2.03mm)

0.061"

(1.55mm)

NO1 V- N04

GND

COM2

IN2

IN1

COM1

MAX4552

COM3

IN3

IN4

COM4

NC2 NC3

V+

0.080"

(2.03mm)

0.061"

(1.55mm)

NO1 V- N04

GND

COM2

IN2

IN1

COM1

MAX4553

TRANSISTOR COUNT: 126

SUBSTRATE CONNECTED

TO GND

MAX4551/MAX4552/MAX4553

±15kV ESD-Protected, Quad,

Low-Voltage, SPST Analog Switches

14 ______________________________________________________________________________________

Contact factory for dice specifications.

Ordering Information (continued)

Package Information

QSOP.EPS

PART

MAX4552CEE

MAX4552CSE

MAX4552CPE 0°C to +70°C

0°C to +70°C

TEMP. RANGE PIN-PACKAGE

16 QSOP

16 Narrow SO

16 Plastic DIP

MAX4552C/D 0°C to +70°C Dice*

MAX4552EEE

MAX4552ESE -40°C to +85°C

-40°C to +85°C 16 QSOP

16 Narrow SO

MAX4552EPE -40°C to +85°C 16 Plastic DIP

MAX4553CEE

MAX4553CSE

MAX4553CPE 0°C to +70°C

0°C to +70°C

0°C to +70°C 16 QSOP

16 Narrow SO

16 Plastic DIP

MAX4553C/D 0°C to +70°C Dice*

MAX4553EEE

MAX4553ESE -40°C to +85°C

-40°C to +85°C 16 QSOP

16 Narrow SO

MAX4553EPE -40°C to +85°C 16 Plastic DIP

MAX4551/MAX4552/MAX4553

±15kV ESD-Protected, Quad,

Low-Voltage, SPST Analog Switches

______________________________________________________________________________________ 15

Package Information (continued)

SOICN.EPS

MAX4551/MAX4552/MAX4553

±15kV ESD-Protected, Quad,

Low-Voltage, SPST Analog Switches

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.

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

Package Information (continued)

PDIPN.EPS