MAXIM MAX4533 User Manual

19-1452; Rev 1; 10/99

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.

Quad, Rail-to-Rail, Fault-Protected,

SPDT Analog Switch

General Description

The MAX4533 quad, single-pole/double-throw (SPDT), fault-protected analog switch is pin-compatible with the industry-standard MAX333 and MAX333A. The MAX4533 features fault-protected inputs and Rail-to-Rail®signal handling. The normally open (NO_ ) and normally closed (NC_ ) terminals are protected from overvoltage faults up to ±25V with power on and up to ±40V with power off. During a fault condition, NO_ and NC_ become high impedance with only nanoamperes of leakage current flowing to the source. In addition, the output (COM_) clamps to the appropriate polarity supply rail and provides up to ±10mA of load current. This ensures unambiguous rail-to-rail outputs when a fault occurs.

The MAX4533 operates from dual ±4.5V to ±18V power supplies or a single +9V to +36V supply. All digital inputs have +0.8V and +2.4V logic thresholds, ensuring both TTL and CMOS logic compatibility when using ±15V supplies or a +12V supply. On-resistance is 175Ω max and is matched between switches to 10Ω max. The offleakage current is only 0.5nA at T

= +85°C.

= +25°C and 10nA at

Applications

Redundant/Backup Systems Portable Instruments

Test Equipment Data-Acquisition

Communications Systems

Industrial and Process Control Avionics Systems

Systems

Features

♦ Rail-to-Rail Signal Handling

♦ ±40V Fault Protection with Power Off

±25V Fault Protection with ±15V Supplies

♦ All Switches Off with Power Off

♦ No Power-Supply Sequencing Required During

Power-Up or Power-Down

♦ Output Clamped to Appropriate Supply Voltage

During Fault Condition—No Transition Glitch

♦ 1kΩ (typ) Output Clamp Resistance During

Overvoltage

♦ 175Ω (max) Signal Paths with ±15V Supplies

♦ 20ns (typ) Fault Response Time

♦ ±4.5V to ±18V Dual Supplies

+9V to +36V Single Supply

♦ Pin-Compatible with Industry-Standard

MAX333/MAX333A

♦ TTL/CMOS-Compatible Logic Inputs with ±15V or

Single +9V to +15V Supplies

Ordering Information

PART

MAX4533CAP

MAX4533CWP 0°C to +70°C

Ordering Information continued at end of data sheet.

TEMP. RANGE PIN-PACKAGE

0°C to +70°C

20 SSOP

20 Wide SO

MAX4533

†

Typical Operating Circuit

Pin Configuration/

Functional Diagram

MAX4533

OUTPUTS

V1 - V2

V3 - V4

TOP VIEW

IN1

NO1

COM1

NC1

V-

GND

NC2

COM2

NO2

IN2

SWITCHES ARE SHOWN WITH LOGIC "0" INPUT N.C. = NOT INTERNALLY CONNECTED

MAX4533

SSOP/SO/DIP/CERDIP

IN4

NO4

COM4

NC4

V+

N.C.

NC3

COM3

NO3

IN3

INPUTS

OSC

FLYING CAPACITOR LEVEL TRANSLATOR

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

† Pg

(2-CHANNEL)

________________________________________________________________ Maxim Integrated Products 1

MAX4533

Quad, Rail-to-Rail, Fault-Protected, SPDT Analog Switch

2 _______________________________________________________________________________________

ABSOLUTE MAXIMUM RATINGS

ELECTRICAL CHARACTERISTICS—Dual Supplies

(V+ = +15V, V- = -15V, TA= T

MIN

to T

MAX

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

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.

Voltages Referenced to GND

V+ ........................................................................-0.3V to +44.0V

V- .........................................................................-44.0V to +0.3V

V+ to V-................................................................-0.3V to +44.0V

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

NC_, NO_ (Note 2)..................................(V+ - 40V) to (V- + 40V)

NC_, NO_ to COM_ .................................................-40V to +40V

NC_, NO_ Overvoltage with Switch Power On

(supplies at ±15V) ................................................-30V to +30V

NC_, NO_ Overvoltage with Switch Power Off ........-40V to +40V

Continuous Current into Any Terminal..............................±30mA

Peak Current into Any Terminal

(pulsed at 1ms,10% duty cycle)....................................±50mA

Continuous Power Dissipation (T

= +70°C)

20-Pin SSOP (derate 10.53mW/°C above +70°C) ........842mW

20-Pin Wide SO (derate 10.00mW/°C above +70°C) .. 800mW 20-Pin Plastic DIP (derate 11.11mW/°C above +70°C) 889mW

20-Pin CERDIP (derate 11.11mW/°C above +70°C).....889mW

Operating Temperature Ranges

MAX4533C_ _ ......................................................0°C to +70°C

MAX4533E_ _ ...................................................-40°C to +85°C

MAX4533M_ _.................................................-55°C to +125°C

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

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

Note 1: COM_ and IN_ pins are not fault protected. Signals on COM_ or IN_ exceeding V+ or V- are clamped by internal diodes.

Limit forward diode current to maximum current rating.

Note 2: NC_ and NO_ pins are fault protected. Signals on NC_ or NO_ exceeding -25V to +25V may damage the device. These

limits apply with power applied to V+ or V-. The limit is ±40V with V+ = V- = 0.

_ or VNC_ = ±10V,

COM

_ = 1mA

V+ = +15V, V- = -15V, VNO_ or VNC_ = ±15V

COM_

= +5V, 0, -5V,

COM_

= 1mA

CONDITIONS

Ω

125 175

COM_ to NO_ or COM_ to NC_ On-Resistance

VV- V+V

, V

Fault-Free Analog Signal Range (Note 2)

-200 200

250

Ω4

On-Resistance Flatness

-0.5 0.02 0.5

NO_(OFF),

NC_(OFF)

NO_ or NC_ Off-Leakage Current (Note 5)

-10 10

UNITSMIN TYP MAXSYMBOLPARAMETER

+25°C

C, E, M

+25°C

C, E

C, E 200

+25°C

VNO_ or VNC_ = ±10V, I

COM

_ = 1mA

C, E 10

Ω

∆

COM_ to NO_ or COM_ to NC_ On-Resistance Match Between Channels (Note 4)

VNO_ or VNC_ = ±14V, V

COM

_ = 14V

COM_

= ±14V,

NO_

or V

NC_

= ±14V or floating

+25°C

C, E

-400 400

-0.5 0.01 0.5

COM_(ON)

COM_ On-Leakage Current (Note 5)

-20 20

+25°C -25 +25Applies with power on

NO_

, V

NC_

Fault-Protected Analog Signal Range (Note 2)

VNO_ or VNC_ = ±25V, V

COM

_ = 10V

NO_

or V

NC_

= ±25V,

no connection to “ON” channel

+25°C

C, E

-10 10

-200 200

COM_

COM_ Output Leakage Current, Supplies On

+25°C

C, E

-10 10

-20 20

NO_, INC_

-200 200 µA

NO_ or NC_ Off Input Leakage Current, Supplies On

Applies with power off +25°C -40 +40

µA

FAULT

ANALOG SWITCH

MAX4533

Quad, Rail-to-Rail, Fault-Protected,

SPDT Analog Switch

_______________________________________________________________________________________ 3

ELECTRICAL CHARACTERISTICS—Dual Supplies (continued)

(V+ = +15V, V- = -15V, TA= T

MIN

to T

MAX

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

CONDITIONS T

UNITSMIN TYP MAXSYMBOLPARAMETER

+25°C

C, E

1.0 2.5

-20 0.1 20

NO_, INC_

-200 200

NO_ or NC_ Input Leakage Current, Supplies Off

COM_ On-Clamp Output Resistance, Supplies On

+25°C

NO_

or VNC= ±25V

C, E, M

COM_

kΩ

RL= 10kΩ, V

NO_

or V

NC_

= ±25V

±Fault Output Clamp Turn-On Delay Time (Note 6)

C, E, M 2.4 VV

IN_H

IN_ Input Logic Threshold High

+25°C 100 250

C, E 400

+25°C

600

10 50

COM_

= ±10V,

= 1kΩ; Figure 3

BBM

Break-Before-Make Time Delay ns

RL= 10kΩ, V

NO_

or V

NC_

= ±25V

+25°C 2.5 µs

±Fault Recovery Time (Note 6)

C, E, M 0.8 VV

IN_L

IN_ Input Logic Threshold Low

IN_

= +0.8V or +2.4V

+25°C -1 0.03 1

IN_H, IIN_L

µA

IN_ Input Current Logic High or Low

C, E, M -5 5

COM_

= ±10V,

= 2kΩ; Figure 2

Turn-On Time ns

RL= 50Ω, CL= 15pF, V

= 1V

RMS

, f = 1MHz;

Figure 6

f = 1MHz; Figure 5

ISO

N_(OFF)

Off-Isolation (Note 7)

NO_ or NC_ Off-Capacitance

pF+25°C 5

+25°C -62

+25°C

60 150

NO_

= ±10V,

RL= 2kΩ; Figure 2

OFF

Turn-Off Time

C, E 300

450

±4.5 ±18 VV+, V-Power-Supply Range

C, E, M

+25°C

600

400

µA

All V

IN_

= 0 or +5V,

NO_

= V

NC_

= 0

C, E, M

+25°C

1000

600

µA

All V

IN_

= 0 or +5V,

NO_

= V

NC_

= 0

I+V+ Supply Current

I-V- Supply Current

+25°C 1.5

CL= 100pF, V

COM_

= 0; Figure 4

Q pCCharge Injection (Note 6)

f = 1MHz; Figure 5C

COM_(ON)

COM_ On-Capacitance pF+25°C 12

RL= 50Ω, CL= 15pF, VN_= 1V

RMS

, f = 1MHz;

Figure 6

Channel-to-Channel Crosstalk (Note 8)

dB+25°C -66

C, E, M

+25°C

450

300

µA

All V

IN_

= 0 or +5V,

NO_

= V

NC_

= 0

GND

GND Supply Current

NO_

or V

NC_

= +25V +25°C

+25°C

81113

COM_

-12 -10 -7

COM_ On-Clamp Output Current, Supplies On

NO_

or V

NC_

= -25V

NO_

or V

NC_

= ±40V,

V+ = 0, V- = 0

-10 10 µA

LOGIC INPUT

SWITCH DYNAMIC CHARACTERISTICS

POWER SUPPLY

MAX4533

Quad, Rail-to-Rail, Fault-Protected, SPDT Analog Switch

4 _______________________________________________________________________________________

ELECTRICAL CHARACTERISTICS—Single Supply

(V+ = +12V, V- = 0, TA= T

MIN

to T

MAX

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

+25°C

C, E, M

V+ = +12V, V

_ or VNC_ = +10V,

COM

_ = 1mA

V+ = +12V, V

COM_

= +10V,

NO_

or V

NC_

= +10V or floating

V+ = +12V, V- = 0, VNO_ or VNC_ = +12V or 0

+25°C

C, E

-400 400

-0.5 0.01 0.5

COM_(ON)

COM_ On-Leakage Current (Notes 5, 9)

-20 20

Applies with power off

+25°C

V+ = +12V, V

COM_

= +10V, +1V,

NO_

or V

NC_

= +1V, +10V

+25°C

CONDITIONS

+25°C

C, E

V+ = +12V, V

_ or VNC_ = +10V,

COM

_ = 1mA

450

C, E 20

Ω

410

∆R

COM_ -NO_ On-Resistance Match Between Channels (Note 4)

-40 +40

-25 +25

µA

Applies with power on

NO_

, V

NC_

NO_

or V

NC_

= ±40V,

V+ = 0, V- = 0

Fault-Protected Analog Signal Range (Note 2)

NO_

or V

NC_

= ±25V, V+ = +12V, no connection to “ON” channel

+25°C

C, E

-10 10

+25°C

-10 10

C, E

-10 10

-200 200

-20 0.1 20

NO_, INC_

-200 200

COM_

µA

COM_ Output Leakage Current, Supply On (Note 9)

NO_

or V

NC_

= ±25V, V

COM_

= 0,

V+ = +12V

+25°C

C, E

Ω

260 390

COM_ to NO_, COM_ to NC_ On-Resistance

V0V+V

, V

Fault-Free Analog Signal Range (Note 2)

-10 10

NO_ or NC_ Input Leakage Current, Supply Off (Note 9)

-20 20

NO_, INC_

-200 200 µA

NO_ or NC_ Off Input Leakage Current, Supply On (Note 9)

-200 200

525

-0.5 0.01 0.5

NO_(OFF),

NC_(OFF)

NO_ or NC_ Off-Leakage Current (Notes 5, 9)

-10 10

UNITSMIN TYP MAXSYMBOLPARAMETER

+25°C 235

NO_

or V

NC_

= ±25V,

V+ = +12V

COM_

COM_ On-Clamp Output Current, Supply On

+25°C

C, E, M C, E, M

-1 0.03 1

2.4V

IN_H

0.8

µA

VIN_ Input Logic Threshold High

IN_

= +0.8V or +2.4VI

IN_H, IIN_L

IN_L

IN_ Input Current Logic High or Low

IN_ Input Logic Threshold Low

+25°C 2.4 5

NO_

or V

NC_

= ±25V,

V+ = +12V

COM_

kΩ

COM_ On-Clamp Output Resistance, Supply On

C, E, M -5 5

ANALOG SWITCH

FAULT

LOGIC INPUT

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