AMR4020 High Accuracy Analog Magnetic Scale Sensor
The AMR40x0 series magnetic grate sensors integrate two push-pull Wheatstone bridges, each of which contains four high-sensitivity anisotropic magnetoresistance (AMR) sensing elements. Such a design effectively compensates temperature drift to ensure high accuracy under wide temperature range.

As the AMR40x0 moves along the magnetic scale,sensor outputs two orthogonal sets of analog voltage signals (sine and cosine), the period of which corresponds to the scale’s magnetic pole pitch. The relative displacement of the sensor and the scale can be accurately determined by calculating the two sets of analog voltage signals. The AMR40x0 series have been designed with internal sensor elements close to the surface of the package to reduce limitations on airgap. Combined with the already small DFN12L (6 mm × 2 mm × 0.75 mm) package, the AMR40x0 series give greater responsibility to system design and ease of assembly in tight spaces.

Features and Benefits: 
(1)Anisotropy of magnetoresistance (AMR) Technology
(2)Wide range supply voltages
(3)Large airgap tolerance
(4)Low saturation field
(5)Phase A and phase B analog output
(6)Excellent temperature stability
(7)High tolerance to external magnetic field interference
(8)RoHS & REACH compliant.

Applications:
(1)Incremental or absolute encoder
(2)Linear or angular displacement encoder
(3)Magnetic scale and magnetic encoder

MultiDimension Technology(MDT®) was founded in 2010 in Zhangjiagang, Jiangsu Province, China, with branch offices in Ningbo, Shanghai, and Chengdu, China and San Jose, Calif., USA. MDT has developed an unique intellectual property portfolio, and state-of-the-art manufacturing capabilities that can support volume production of high-performance, low-cost TMR magnetic sensors to satisfy the most demanding application needs. Led by its core management team of experts in magnetic sensor technology and engineering services, MDT is committed to creating added value for its customers and ensuring their success. 
MDT ’s Service Options Include:

• In-plane and Z-axis TMR sensors, which may be delivered as wafers, bare dice, or packaged devices
• Custom design for TMR/GMR/AMR sensors
• ASIC design for integration with TMR/GMR/AMR sensors
• Foundry service for TMR/GMR/AMR sensors including thin-film deposition, device processing, packaging and testing
• Custom sensor module design and application solutions
• IP licensing, granting customers access to MDT ’s technology for use in their products