Series:	AD
Packaging:	Tube
Part Status:	Active
Function:	Omnipolar Switch
Technology:	Hall Effect
Polarization:	Either
Sensing Range:	±2.5mT Trip, ±1.1mT Release
Test Condition:	-40°C ~ 125°C
Voltage - Supply:	4.5 V ~ 30 V
Current - Supply (Max):	4.5mA
Current - Output (Max):	20mA
Output Type:	Open Collector
Features:	--
Operating Temperature:	-40°C ~ 125°C (TA)
Package / Case:	8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
Supplier Device Package:	8-MSOP

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Introduction

Magnetic sensors and switches are used in a variety of applications as part of the detection and protection of motors and electrical circuits. Specifically, the AD104-00E solid-state magnetic sensor and switch is a self-contained electronic device used in industrial or consumer applications.

Magnetic Sensors - Switches (Solid State)

The AD104-00E is a solid-state magnetic sensor and switch designed to detect and/or switch low-power electronic circuits when a predetermined magnetic field is present. This device is a low-power push-pull type solid-state switch with a built-in Hall effect sensor operating in the saturation region. The switching action is triggered when the flux density of the magnetic field exceeds a preset threshold level.

Application Field:

The AD104-00E is used in a wide range of applications including sensing motor over-current, detection of relays that operate with an electromechanical or solenoid drive, flow meter applications, and motion-sensing systems. The Hall effect technology implemented in the device combines a hall effect sensor and on-board electronics to detect low field strengths from permanent magnets.

Working Principle:

The AD104-00E utilizes a common type of Hall effect sensor called a “Hall effect switch”. This type of Hall effect device is capable of detecting a magnetic field and switching an electronic circuit in response to the field’s strength. When the magnetic field is strong enough to overcome a preset threshold, the Hall effect device will trigger a switch action, conducting electricity.The Hall effect sensor is a semiconductor device that is sensitive to a magnetic field when a voltage is applied to it. In the AD104-00E, the Hall effect sensor is placed in series with an electronic switch configured to trip at a preset magnetic field. The Hall effect sensor will detect a magnetic field originating from a nearby permanent magnet, triggering a switch action in response.

Conclusion:

The AD104-00E is a versatile, low-power electronic device with a variety of applications. Its Hall effect technology is used to detect and/or switch low-power electronic circuits when a predetermined magnetic field is present. By combining a Hall effect sensor and onboard electronics, the AD104-00E is able to sense low field strengths from permanent magnets for a variety of applications.

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