Maxim MAX4506CPA, MAX4506C-D, MAX4507MJN, MAX4507EWN, MAX4507EPN Datasheet

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General Description

The MAX4506/MAX4507 multiple, two-terminal signal-line protectors are pin-compatible with the industry-standard MAX366/MAX367. These new circuit protectors feature fault-protected inputs and Rail-to-Rail®signal handling capability. The input pins are protected from overvoltage faults up to ±36V with power on or ±40V with power off. During a fault condition, the input terminal becomes an open circuit and only nanoamperes of leakage current flow from the source; but the switch output (OUT_) furnishes typically 19mA from the appropriate polarity supply to the load. This ensures unambiguous rail-to-rail outputs when a fault begins and ends.

The MAX4506 contains three independent protectors while the MAX4507 contains eight independent protectors. They can protect both unipolar and bipolar analog signals using either unipolar (+9V to +36V) or bipolar (±8V to ±18V) power supplies.

These devices have no logic control inputs; the protectors are designed to be always-on when the supplies are on. On-resistance is 100Ω max and matched within 7Ω, and on-leakage is less than 0.5nA at TA= +25°C. The MAX4506 is available in 8-pin SO/DIP packages. The MAX4507 is available in 20-pin SSOP and 18-pin SO/DIP packages.

Applications

Process-Control Systems Hot-Insertion Boards/Systems Data-Acquisition Systems Redundant/Backup Systems ATE Equipment Sensitive Instruments

Features

♦ Overvoltage Protection

±40V with Power Off ±36V with Power On

♦ Open Signal Paths with Power Off ♦ Output Clamps to Either Rail with an Input

Overvoltage

♦ Any On Channel Output is Not Affected

by an Overvoltage to Any Other Channel

♦ 100Ω max On-Resistance ♦ 10ns Overvoltage Turn-On Delay ♦ No Latchup During Power Sequencing ♦ Rail-to-Rail Signal Handling ♦ 500Ω Output Clamp Resistance During

Overvoltage

MAX4506/MAX4507

Fault-Protected, High-Voltage

Signal-Line Protectors

________________________________________________________________

Maxim Integrated Products

OUT2

OUT3V-

87V+

OUT1IN2

IN3

IN1

SO/DIP

MAX4506

TOP VIEW

Typical Operating Circuit

19-1415; Rev 1; 8/99

PART

MAX4506ESA MAX4506EPA MAX4506MJA -55°C to +125°C

-40°C to +85°C

TEMP. RANGE PIN-PACKAGE

8 SO 8 Plastic DIP 8 CERDIP**

Ordering Information continued at end of data sheet.

Contact factory for dice specifications.

Contact factory for availability.

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

Pin Configurations continued at end of data sheet.

Pin Configurations

Ordering Information

MAX4506CPA 0°C to +70°C 8 Plastic DIP MAX4506C/D 0°C to +70°C Dice*

MAX4506CSA

0°C to +70°C 8 SO

SWITCHED +15V

MAX4506

IN1

IN2

IN3

V-

OUT1

OUT2

OUT3

V+

100k

OP AMP

-15V

+15V

MAX4506/MAX4507

Fault-Protected, High-Voltage Signal-Line Protectors

2 _______________________________________________________________________________________

ABSOLUTE MAXIMUM RATINGS

ELECTRICAL CHARACTERISTICS

(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

IN_ or OUT_ .........................................................................±44V

IN_ Overvoltage with Power On...........................................±36V

IN_ Overvoltage with Power Off...........................................±40V

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

Peak Current into Any Terminal

(pulsed at 1ms, 10% duty cycle).................................±70mA

Continuous Power Dissipation (T

= +70°C)

8-Pin Narrow SO (derate 5.88mW/°C above +70°C) ....471mW

8-Pin Plastic DIP (derate 9.09mW/°C above +70°C) .....727mW

8-Pin CERDIP (derate 8.00mW/°C above +70°C) ...........640mW

18-Pin Wide SO (derate 9.52mW/ °C above +70°C) .......762mW

18-Pin Plastic DIP (derate 11.11mW/ °C above +70°C) ...889mW

18-Pin CERDIP (derate 10.53mW/ °C above +70°C) ......842mW

20-Pin SSOP (derate 11.11mW/°C above +70°C) ...........640mW

Operating Temperature Ranges

MAX4506C_A /MAX4607C_ _.............................0°C to +70°C

MAX4506E_A/MAX4607E_ _ ...........................-40°C to +85°C

MAX4506MJA/MAX4607MJN ........................-55°C to +125°C

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

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

RECOMMENDED OPERATING GUIDELINES

V+ to GND..............................................................-0.3V to +40V

V- to GND ...............................................................-32V to +0.3V

V+ to V- ..................................................................................40V

IN_........................................................................................±40V

OUT_ ...............................................................................V+ to V-

IN_ to OUT_..........................................................40V Differential

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

Peak Current into Any Terminal

(pulsed at 1ms, 10% duty cycle) .................................≤70mA

Input Capacitance pF20VIN= 0, f = 1MHz +25°C

IN_

Fault-Protected Analog Signal Range

-36 36

(Notes 2, 3)

C, E, MApplies with power on

-20 0.1 20

-40 40

C, E, M

-200 200

C, E

+25°C

IN_

= ±25V, V

OUT_

= open

Applies with power off

IN_

Input Signal-Path Leakage Current, Supplies On

-10 10

65 100

V- V+

IN_

Fault-Free Analog Signal Range (Note 4)

-400 400

OUT_ON

Signal-Path Leakage Current (Note 7)

µA

-20 20

-0.5 0.5

125

Ω

150

Analog Signal-Path Resistance

Ω

∆R

Signal-Path Resistance Match (Note 6)

UNITSMIN TYP MAXSYMBOLPARAMETER

V+ = +15V, V- = -15V, V

IN_

= ±15V

OUT_

= ±10V, V

IN_

= ±10V or

floating

IN_

= ±10V, I

OUT_

= 1mA

IN_

= V

OUT_

= ±10V, I

OUT

= 1mA

CONDITIONS

+25°C

C, E, M

C, E

+25°C

C, E

+25°C

C, E

ANALOG SWITCH

FAULT PROTECTION

Note 1: OUT_ pins are not fault protected. Signals on OUT_ exceeding V+ or V- are clamped by internal diodes. Limit forward-diode

current to maximum current rating.

Note 2: IN_ pins are fault protected. Signals on IN_ exceeding -36V to +36V may damage the device. These limits apply with power

applied to V+ or V-, or ±40V with V+ = V- = 0.

µA

MAX4506/MAX4507

Fault-Protected, High-Voltage

Signal-Line Protectors

_______________________________________________________________________________________ 3

ELECTRICAL CHARACTERISTICS—Single Supply

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

MIN

to T

MAX

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

MAX4506

MAX4507

-20 0.2 20

-400

-300

MAX4506

MAX4507

400

-250 -160

Power-Supply Current

300

-200

160 250

200

175

-175

µA

90 150

-150 -90

I-

I+

IN_

= +15V

C, E

+25°C

C, E

+25°C

-500 500

C, E

+25°C

IN_

= ±40V, V

OUT_

= open,

V+ = 0, V- = 0

IN_

Input Signal-Path Leakage Current, Supplies Off

-10 10

M µA

13 19 26

-26 -19 -13

+25°C

+25°CV

IN_

= +25V

OUT_

Output Clamp Current, Supplies On

0.5 1.0

kΩ

0.4 1.0

+25°C

UNITSMIN TYP MAXSYMBOLPARAMETER

OUT

= 1mAR

OUT_

Output Clamp Resistance, Supplies On

IN_

= -25V

IN_

= +25V

IN_

= -25V

±8 ±18

C, E, M

+25°C ns

± Fault Output Turn-On Delay Time (Note 5)

RL= 10kΩ, V

IN_

= ±25V

Power-Supply Range

CONDITIONS

V+, V-

C, E

+25°C

C, E

+25°C

2.5

µs+25°C± Fault Recovery Time (Note 5) RL= 10kΩ, V

IN_

= ±25V

125 200

0V+

IN_

Fault-Free Analog Signal Range (Note 4)

∆R

Signal-Path Resistance Match (Note 6)

Ω

312

250

Ω

300

Analog Signal-Path Resistance

UNITSMIN TYP MAXSYMBOLPARAMETER

V+ = +12V, V- = 0 V

IN_

= +12V

IN_

= +10V, I

OUT_

= 1mA

IN_

= +10V, I

OUT_

= 1mA

CONDITIONS

+25°C

C, E, M

C, E

+25°C

C, E

POWER SUPPLY

-400 400

OUT_(ON)

Signal-Path Leakage Current (Note 7)

-20 20

-0.5 0.05 0.5

= +10V or floating

C, E

+25°C

ANALOG SWITCH

MAX4506/MAX4507

Fault-Protected, High-Voltage Signal-Line Protectors

4 _______________________________________________________________________________________

ELECTRICAL CHARACTERISTICS—Single Supply (continued)

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

MIN

to T

MAX

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

RL= 10kΩ, V

IN_

= +25V± Fault Recovery Time (Note 5) +25°C µs

2.5

V+

CONDITIONS

Power-Supply Range

RL= 10kΩ, V

IN_

= +25V

± Fault Output Turn-On Delay Time (Note 5)

ns+25°C

C, E, M

+9 +36

IN_

= 25V

PARAMETER SYMBOL MIN TYP MAX UNITS

Output Clamp Current, Supply On

OUT_

+25°C

3 5.5 10

µA

-10 10

Input Signal-Path Leakage Current, Supply Off (Note 9)

IN_

-10 10

IN_

= ±40V

+25°C

Input Signal-Path Leakage Current, Supply On (Note 9)

IN_

C, E

-500 500

+25°C

C, E

+25°C

C, E

IN_

= +12VI+

925

µA

30 40

17 40

Power-Supply Current

MAX4507

MAX4506

Applies with power off

IN_

= ±25V, V

OUT_

= 0

+25°C

C, E

-200 200

C, E, M

-40 40

-20 0.2 20

Applies with power on C, E, M

-36 36 V

Fault-Protected Analog Signal Range (Notes 4, 5, 9)

IN_

= ±25V

Output Clamp Resistance, Supply On

OUT_

+25°C

1.0 2.5

kΩ

Note 3: The algebraic convention is used in this data sheet; the most negative value is shown in the minimum column. Note 4: See Fault-Free Analog Signal Range vs. Supply Voltages graph in the

Typical Operating Characteristics

Note 5: Guaranteed by design. Note 6: ∆R

= R

ON(MAX)

- R

ON(MIN)

Note 7: Leakage parameters are 100% tested at maximum rated hot temperature and guaranteed by correlation at TA= +25°C. Note 8: Leakage testing for single-supply operation is guaranteed by testing with dual supplies. Note 9: Guaranteed by testing with dual supplies.

POWER SUPPLY

FAULT PROTECTION

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