The SM125-10E Smart Magnetometer combines an omnipolar GMR sensor element with with easy-to-use digital signal processing.
A digital output provides precise, programmable thresholds. An I²C interface provides magnetic field data, as well as a calibration interface. The device is factory calibrated for accuracy. Calibration coefficients are stored in internal nonvolatile memory.
All commands, data, and coefficients are a single byte, and a slick, elegant data structure lets you get up and running with a minimum of firmware.
Key features include:
• Can detect magnets more than 50 mm away
• I²C and digital threshold outputs
• 0-4 mT linear range
• 8-bit / 1% output resolution
• −40°C to +125°C operating range
• 5% FS accuracy for 0 to 85°C
• 10 kSps sample rate for fast response
• 6 mA typical supply current
• In-plane sensitivity more usable than Hall effect sensors
• Programmable offset and gain compensation
• Optional magnet temperature compensation • 2.2 to 3.6 volt supply
• Ultraminiature 2.5 x 2.5 x 0.8 mm DFN6 package |
