TMR1148 MicroAmpere High Frequency Response Unipolar Magnetic Switch Sensor
Part No.:TMR1148
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Supply Voltage(V):1.8~5.5 V
Power Consumption(μA):1.5μA
Operating Modes:

continuous power, no duty cycling

Sensing Direction:X-axis
Bop (Gs,25°C)(Gs):15
Brp (Gs,25°C)(Gs):10
Output Interface:Open Drain
Lead Time:In stock
  • TMR1148

General DescriptionTMR1148 is a unipolar magnetic switch integrated the tunneling magnetoresistance (TMR) 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. 

Unlike Hall/AMR sensors, TMR sensors with extremely high resistance values allows TMR1148 to achieve the supply current as low as 1.5 μA while operating in the full-time power supply mode, and maintaining the response frequency of the magnetic signal is 1kHz. Therefore, TMR1148 can provide true continuous detection of magnetic field signals, avoiding sampling errors from the traditional time-sharing power supply mode.

Features and Benefits(1)Tunneling magnetoresistance (TMR) technology;(2)Low power consumption: supply current 1.5 μA;(3)High frequency response: typ. 1 kHz;(4)Unipolar operation;(5)Wide range supply voltages: 1.8 V to 5.5 V;(6)Open-drain output;(7)High sensitivity;(8)Excellent temperature stability;(9)High tolerance to external magnetic field interference;(10)RoHS & REACH compliant;(11)Validation according to AEC-Q100 Grade1;(12)Fulfill MSL 1.

Applications(1)Utility meters: water, gas, and heat meters;(2)Proximity switches;(3)Speed sensing;(4)Linear and rotation position sensing;(5)Wake-up switch;(6)Level switch.


The information provided herein by MultiDimension Technology Co., Ltd. (hereinafter MultiDimension) is believed to be accurate and reliable. Publication neither conveys nor implies any license under patent or other industrial or intellectual property rights. MultiDimension reserves the right to make changes to product specifications for the purpose of improving product quality, reliability, and functionality. MultiDimension does not assume any liability arising out of the application and use of its products. MultiDimension’s customers using or selling this product for use in appliances, devices, or systems where malfunction can reasonably be expected to result in personal injury do so at their own risk and agree to fully indemnify MultiDimension for any damages resulting from such applications.

“MultiDimension”, “MultiDimension Sensing the Future”, and “MDT” are registered trademarks of MultiDimension Technology Co., Ltd.

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