Digital omnipolar magnetic switch

Featured Product from MultiDimension Technology Co., Ltd.

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TMR1303 TMR Omnipolar Magnetic Switch
TMR1303 is a digital omnipolar magnetic switch that integrates TMR and CMOS technology in order to provide a magnetically triggered digital switch with high sensitivity, high speed, and ultra-low power consumption. It is designed for use in applications that are both power-critical and performance-demanding. It contains a push-pull half-bridge TMR magnetic sensor and CMOS signal processing circuitry within the same package, including an on-chip TMR voltage generator for precise magnetic sensing, a TMR voltage amplifier and comparator plus a Schmitt trigger to provide switching hysteresis for noise rejection, and CMOS push-pull output. An internal band gap regulator is used to provide a temperature compensated supply voltage for internal circuits, permitting a wide range of supply voltages. The TMR1303 draws only 1.5μA resulting in ultra-low power operation. It has fast response, accurate switching points, excellent thermal stability, and immunity to stray field interference. It is available in the SOT23-3 package.

Features and Benefits

(1)Tunneling Magnetoresistance (TMR) Technology

(2)Ultra Low Power Consumption at 1.5μA

(3)High Frequency Response > 1kHz

(4)Operation with North or South Pole

(5)Low Switching Points for High Sensitivity

(6)Compatible with a Wide Range of Supply Voltages

(7)Excellent Thermal Stability

(8)High Tolerance to External Magnetic Field Interference.



(1)Utility Meters including Water, Gas, and Heat Meters

(2)Proximity Switches

(3)Position and Speed Sensing

(4)Motor and Fan Control.


MultiDimension Technology(MDT®) was founded in 2010 in Zhangjiagang, Jiangsu Province, China, with branch offices in Ningbo ,Shanghai, 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