NVE SM225-10E

NVE SM225-10E

The SM225-10E smart magnetometer from NVE is designed to provide precise magnetic field measurements, detecting magnets even over 50mm away. The sensors combine precise Tunneling Magnetoresistance (TMR) sensor elements with easy-to-use digital signal processing, Unlike awkward, old-fashioned Hall-effect sensors, TMR is sensitive in-plane for optimal current sensing and easy mechanical interfaces. TMR also provides more sensitivity, higher precision (2%), higher speed (15kSps), and lower noise than Hall. This magnetometer is a digital device with a 4-wire SPI interface, providing magnetic field data and a way to set parameters such as thresholds. The SM225-10E sensor comes factory calibrated to high accuracy, with the calibration coefficients stored in internal non-volatile memory and is available in ultra-miniature TDFN6 packaging (2.5 x 2.5mm footprint).

  • Smart TMR Magnetometer
  • Wide 0 to 15 mT/0 to 150 Oe linear range
  • 10 bit output resolution
  • 2% FS accuracy for 0 to 125 °C
  • 15kSps sample rate for fast response
  • Operating temperature range of −40°C to +125°C
  • 2.2V to 3.6V supply
  • 3.3V or 5V compatible 4-wire SPI interface
  • Analog field measurements plus on/off digital output
  • In-plane sensitivity
  • Ultraminiature 2.5mm x 2.5mm TDFN6 package

Typical applications for the SM225-10E series include:

  • Proximity sensing
  • Current sensing
  • Security and intrusion detection
  • Automotive applications
  • Cylinder position sensing
The below table gives the full specifications of the NVE
-10E smart TMR magnetometer:

NVE SM225-10E Specifications

Accuracy 2% FS accuracy for 0 to 125 °C
Additional Features
  • Smart TMR Magnetometer
  • Detecting magnets over 50mm away with superior in-plane sensitivity
  • 10 bit output resolution
  • Sample rate of 15kSps
  • Wide 0 to 15 mT/0 to 150 Oe linear range
  • Analog field measurement plus on/off digital output
Operating Temperature −40°C to +125°C
Package/Size Ultraminiature TDFN package (2.5x2.5x0.8mm)
Supply Voltage 2.2V to 3.6V

We are pleased to provide you with a range of additional content including videos, product datasheets, case studies, white papers and application notes for your reference. Please see below for the latest content available:



PDF Document NVE SM225-10E Smart TMR Magnetometer datasheet
PDF Document Package, tape-and-reel and pad layout specifications
PDF Document Power supply bypass capacitor selection
PDF Document Pb free and S-Pb solder profiles
PDF Document Diametrically-Magnetised Magnets - Perfect for magnetic angle & rotation sensing
PDF Document Glossary terms

This product is available fully compliant to the RoHS EU directive 2011/65/EU.

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  • Product Code: NVE SM225-10E
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