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).
Typical applications for the SM225-10E series include:
The below table gives the full specifications of the NVE -10E smart TMR magnetometer:
| Weight | 0.05500 kg |
|---|---|
| Dimensions | 0.80 x 2.50 x 2.50mm |
| Accuracy | ±2% FS |
| Package / Size | |
| Supply Voltage | 2.2 to 3.6V |
| Temperature Range (°C) | -40 to +125°C |
Due to the technical complexity nature of these components, complete specifications, performance data, dimensional information and configuration options are provided within the product datasheet.
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