NMH1000 Ultra-Low Power and Low-Voltage Magnetic Switch

NMH1000

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The NMH1000 is an ultra-low power monolithic Hall effect magnetic field sensor that provides a small footprint in a DFN 1.4 x 1.4 x 0.85 mm package in low-current and low-operating-voltage, I2C mode or standalone mode.

The sensor is most sensitive to a vertical field passing though the top-to-bottom surfaces, orthogonal to the plane of the application PCB. The input consists of a magnetic field ranging from earth-bound background to a maximum BGmax. Output is asserted when surrounding magnetic field is greater than the user-defined detection threshold. In the I2C mode, an indication of the magnetic field value can be reported out.

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Block Diagram

Ultra Low Power and Low Voltage Magnetic Switch

NMH1000 Block Diagram
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Features

System Features

  • Voltage supply range: 1.2 V to 3.6 V
  • Current consumption: 75 nA @ 1 Hz

Stand Alone Mode

  • Threshold selection 3-state hardware pin ( 70, 140 or 210 Gauss)
  • Samples rate selection 3-state hardware pin ( 0.1 Hz, 1 Hz, 10 Hz)

I2C Mode

  • Threshold selection data bits
  • Sample rate selection data bits (from 0.1 Hz to 100 Hz)

Part numbers include: NMH1000.

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Software

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Note: For better experience, software downloads are recommended on desktop.

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