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Part Number: MAX4505
Description: The MAX4505 is a single signal-line protector featuring a fault-protected input and Rail-to-Rail® signal handling c...
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MAX4505
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DataSheet
General Description
MAX4505 General Description
The MAX4505 is a single signal-line protector featuring a fault-protected input and Rail-to-Rail® 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 100Ω 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.
MAX4505 Maximum Ratings
(Voltages referenced to GND)
V+........................................................................-0.3V to +44.0V
V- ........................................................................-44.0V to +0.3V
V+ to V-...............................................................-0.3V to +44.0V
AIN, AOUT (Notes 1, 2) .......................................................±44V
AIN Overvoltage with Power On .........................................±36V
AIN 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 (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_ _ .....................................................0°C to +70°C
MAX4505E_ _ ..................................................-40°C to +85°C
Storage Temperature Range .........................-55°C to +150°C
Lead Temperature (soldering, 10sec) ...........................+300°C
V+........................................................................-0.3V to +44.0V
V- ........................................................................-44.0V to +0.3V
V+ to V-...............................................................-0.3V to +44.0V
AIN, AOUT (Notes 1, 2) .......................................................±44V
AIN Overvoltage with Power On .........................................±36V
AIN 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 (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_ _ .....................................................0°C to +70°C
MAX4505E_ _ ..................................................-40°C to +85°C
Storage Temperature Range .........................-55°C to +150°C
Lead Temperature (soldering, 10sec) ...........................+300°C
MAX4505 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
© 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
© Tiny 5-Pin SOT23 Package
±40V with Power Off
±36V with Power On
© Open Signal Paths with Power Off
© Output Clamps to Either Rail with an Input Overvoltage
© 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
© Tiny 5-Pin SOT23 Package
MAX4505 Typical Application
Process Control Systems
Hot-Insertion Boards/Systems
Data-Acquisition Systems
Redundant/Backup Systems
ATE Equipment
Sensitive Instruments
Hot-Insertion Boards/Systems
Data-Acquisition Systems
Redundant/Backup Systems
ATE Equipment
Sensitive Instruments
MAX4505 Connection Diagram
MAX4505
PDF/DataSheet Download
- Datasheet: MAX4505
- File Size: 123074 KB
- Manufacturer: Maixm
- Click here to Download
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