MAX4505EUK

MAX4505EUK Datasheet

MAX4505

Part	Datasheet
MAX4505EUK	MAX4505EUK (pdf)

PDF Datasheet Preview
MAX4505 Fault-Protected, High-Voltage, Signal-Line Protector The MAX4505 is a single signal-line protector featuring a fault-protected input and signal handling capability. The input is 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, while the switch output AOUT furnishes typically 19mA from the appropriate polarity supply to the load. This ensures an unambiguous rail-to-rail output when a fault begins and ends. The MAX4505 protects both unipolar and bipolar analog signals using either unipolar +9V to +36V or bipolar ±8V to ±18V power supplies. The device has no logic control inputs the protector is always on when the supplies are on. On-resistance is max, and on-leakage is less than 0.5nA at TA = +25°C. The MAX4505 is available in 5-pin SOT23 and 8-pin µMAX packages. o Overvoltage Protection ±40V with Power Off ±36V with Power On o Open Signal Paths with Power Off o Output Clamps to Either Rail with an Input Overvoltage o max On-Resistance o 10ns Overvoltage Turn-On Delay o No Latchup During Power Sequencing o Rail-to-Rail Signal Handling o Output Clamp Resistance During Overvoltage o Tiny 5-Pin SOT23 Package Process Control Systems Hot-Insertion Boards/Systems Data-Acquisition Systems Redundant/Backup Systems ATE Equipment Sensitive Instruments Ordering Information PART TEMP. RANGE MAX4505EUK-T -40°C to +85°C MAX4505EUA -40°C to +85°C PINPACKAGE 5 SOT23-5 8 µMAX TOP MARK ADLW Typical Operating Circuit Pin Configurations TOP VIEW MAX4505 V+ V+ RAIL SENSOR AIN 1 MAX4505 AOUT 3 4 N.C. AOUT OUT ROUT SOT23-5 Rail-to-Rail is a registered trademark of Nippon Motorola, Ltd. Pin Configurations continued at end of data sheet. Maxim Integrated Products 1 For free samples & the latest literature or phone For small orders, phone Fault-Protected, High-Voltage, Signal-Line Protector MAX4505 ABSOLUTE MAXIMUM RATINGS Voltages referenced to GND V+ to +44.0V V- to +0.3V V+ to +44.0V AIN, AOUT Notes 1, 2 AIN Overvoltage with Power On AIN Overvoltage with Power Off Continuous Current into Any Peak Current into Any Terminal pulsed at 1ms, 10% duty Continuous Power Dissipation TA = +70°C 5-Pin SOT23-5 derate 7.10mW/°C above +70°C ...571mW 8-Pin µMAX derate 4.10mW/°C above +70°C ........330mW Operating Temperature Ranges MAX4505C_ _ to +70°C MAX4505E_ _ to +85°C Storage Temperature Range .............................-55°C to +150°C Lead Temperature soldering, 10sec .............................+300°C Note 1 The AOUT pin is not fault protected. Signals on AOUT exceeding V+ or V- are clamped by internal diodes. Limit forward diode current to maximum current rating. Note 2 The AIN pin is fault protected. Signals on AIN exceeding -36V to +36V may damage the device. These limits apply with power applied to V+ or V-, or ±40V with V+ = V- = 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. RECOMMENDED OPERATING GUIDELINES V+ to GND to +40V V- to GND to +0.3V V+ to V- AIN to V- AIN to differential Continuous Current into Any Terminal Peak Current into Any Terminal pulsed at 1ms, 10% duty cycle ELECTRICAL Supplies

PDF Datasheet Preview

MAX4505

Fault-Protected, High-Voltage, Signal-Line Protector

The MAX4505 is a single signal-line protector featuring a fault-protected input and signal handling capability. The input is 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, while the switch output AOUT furnishes typically 19mA from the appropriate polarity supply to the load. This ensures an unambiguous rail-to-rail output when a fault begins and ends.

The MAX4505 protects both unipolar and bipolar analog signals using either unipolar +9V to +36V or bipolar ±8V to ±18V power supplies. The device has no logic control inputs the protector is always on when the supplies are on. On-resistance is max, and on-leakage is less than 0.5nA at TA = +25°C. The MAX4505 is available in 5-pin SOT23 and 8-pin µMAX packages.
o Overvoltage Protection ±40V with Power Off ±36V with Power On
o Open Signal Paths with Power Off o Output Clamps to Either Rail with an Input

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

Overvoltage o Tiny 5-Pin SOT23 Package

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

PART

TEMP. RANGE

MAX4505EUK-T -40°C to +85°C MAX4505EUA -40°C to +85°C

PINPACKAGE
5 SOT23-5 8 µMAX

TOP MARK

ADLW

Typical Operating Circuit

Pin Configurations

TOP VIEW

MAX4505

V+ V+

RAIL SENSOR

AIN 1

MAX4505

AOUT 3
4 N.C.

AOUT

OUT ROUT

SOT23-5

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

Pin Configurations continued at end of data sheet.

Maxim Integrated Products 1

For free samples & the latest literature or phone For small orders, phone

Fault-Protected, High-Voltage, Signal-Line Protector

MAX4505

ABSOLUTE MAXIMUM RATINGS

Voltages referenced to GND V+ to +44.0V V- to +0.3V V+ to +44.0V AIN, AOUT Notes 1, 2 AIN Overvoltage with Power On AIN Overvoltage with Power Off Continuous Current into Any Peak Current into Any Terminal
pulsed at 1ms, 10% duty

Continuous Power Dissipation TA = +70°C 5-Pin SOT23-5 derate 7.10mW/°C above +70°C ...571mW 8-Pin µMAX derate 4.10mW/°C above +70°C ........330mW

Operating Temperature Ranges MAX4505C_ _ to +70°C MAX4505E_ _ to +85°C

Storage Temperature Range .............................-55°C to +150°C Lead Temperature soldering, 10sec .............................+300°C

Note 1 The AOUT pin is not fault protected. Signals on AOUT exceeding V+ or V- are clamped by internal diodes. Limit forward diode current to maximum current rating.

Note 2 The AIN pin is fault protected. Signals on AIN exceeding -36V to +36V may damage the device. These limits apply with power applied to V+ or V-, or ±40V with V+ = V- =

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.

RECOMMENDED OPERATING GUIDELINES

V+ to GND to +40V V- to GND to +0.3V V+ to V- AIN to V-

AIN to differential Continuous Current into Any Terminal Peak Current into Any Terminal
pulsed at 1ms, 10% duty cycle

ELECTRICAL Supplies

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Datasheet ID: MAX4505EUK 647346