Description
The AMR3003 is a magnetic angle sensor based on
anisotropic magnetoresistance (AMR) technology. It
senses the magnetic field parallel to the surface of
the sensor with the range of magnetic field rotation
angle θ from 0° to 180°, and outputs voltage
proportional to the sine or cosine of 2θ.
The AMR3003 adopts two push-pull Wheatstone
bridges design, and each bridge contains four
high-sensitivity AMR sensing elements to provide
output signal as large as 1.6% of the supply voltage.
Additionally, this unique AMR Wheatstone bridge
design effectively compensates the output against
changes in ambient temperature.

Features and Benefits
• Anisotropic magnetoresistance (AMR) technology
• Wide range supply voltages
• Large air gap tolerance
• Very low hysteresis
• Excellent temperature stability

Applications
• Rotary position sensing
• Rotary encoder
• Non-contact potentiometer
• Valve position sensor
• Dial sensor