Description

The AMR132x is an omnipolar magnetic switch

integrated with anisotropic magnetoresistance (AMR)

magnetic sensor and CMOS circuitry, which is able

to detect the change of magnetic field and output

high and low voltage signals for high accuracy

position detection.

The AMR132x series switch can detect magnetic

fields from all directions in the plane, enabling 360°

sensing. It provides 100 Hz sampling frequency, 1 μA

power consumption, and a wide range of operating

voltages from 1.8 V to 5.5 V. It has excellent thermal

stability and immunity to stray field interference.

Features and Benefits

• Anisotropic magnetoresistance (AMR) technology

• Low power consumption at 1 μA

• Fast internal switching frequency at 100 Hz

• Omnipolar operation

• High sensitivity

• Wide range supply voltages: 1.8 V to 5.5V

• CMOS output

• Excellent temperature stability

• High tolerance to external magnetic field interference

• RoHS & REACH compliant

Applications

• Utility meters: water, gas, and heat meters

• Proximity switches

• Speed sensing

• Linear and rotary position sensing

• Wake up switches