AAT001-10E Rhopoint Components, AAT001-10E Datasheet

Manufacturer Part Number

AAT001-10E

Description

TMR Angle Sensor

Manufacturer

Rhopoint Components

Datasheet

1.AAT001-10E.pdf (4 pages)

Key Features

Typical Applications

Description

The AAT001-10E angle sensor is a unique array of four Tunneling Magnetoresistance (TMR) elements

rotated at 90 degree intervals in the package and connected in a bridge configuration. The output can be

configured to represent the sine and cosine functions of the magnetic field applied to the sensor. Each TMR

sensor element has a resistance of approximately 1.25 megaohms. Outputs are proportional to the supply

voltage and peak-to-peak output voltages are much larger than other sensor technologies. The part is

packaged in NVE’s 2.5 mm x 2.5 mm x 0.8 mm TDFN6 surface mount package.

Operation

Each sensor elements contain two magnetic layers: a “pinned,” or fixed direction layer; and a movable-

direction, or “free” layer. The diagram below illustrates the configuration, using arrows to represent the two

layers:

• Tunneling Magnetoresistance (TMR) Technology

• Very High Output Signal Without Amplification

• Wide Airgap Tolerance

• Very High Resistance for Extremely Low Power

• Sine and Cosine Outputs Available

• Ultraminiature TDFN6 Package

• Rotary Encoders

• Automotive Rotary Position Sensors

• Motor Shaft Position Sensors

• Knob Position Sensors

Rhopoint Components

AAT001-10E TMR Angle Sensor

www.rhopointcomponents.com

Angle between Pinned

and Free layers

determines sensor

resistance

Free layer aligns

with Applied

Magnetic Field

Data Sheet