Magnetic Sensor Components


  • Overview
  • Specifications
  • Features and Benefits
  • Applications
The MMC3530KJ is a complete 3-axis magnetic sensor with on-chip signal processing and integrated I2C bus. The device can be connected directly to a microprocessor, eliminating the need for A/D converters or timing resources. It can measure magnetic fields within the full scale range of 24 Gauss (G), with 1 mG/4 mG per LSB resolution for 16/14 bits operation mode and 2 mG total RMS noise level, enabling heading accuracy of 1º in electronic compass applications. Contact MEMSIC for access to advanced calibration and tilt-compensation algorithms.
An integrated SET/RESET function provides for the elimination of error due to Null Field output change with temperature. In addition it clears the sensors of any residual magnetic polarization resulting from exposure to strong external magnets. The SET/RESET function can be performed for each measurement or periodically as the specific application requires.
The MMC3530KJ is packaged in an ultra-small low profile BGA package (1.4 x 1.4 x 0.5 mm) and with an operating temperature range from -40 ?C to +85C.The MMC3530KJ provides an I2C digital output with 400 KHz, fast mode operation.
Axes 3
FSR 30
Output I²C
Sensitivity 1024 c/G
Noise 2
Supply Voltage 1.62 - 1.98
Supply Current 0.16
Sleep Mode Y
Size 1.4x1.4
S/R Offset Nuling Y
Price (1k) $1.20
  • Fully integrated 3-axis magnetic sensor and electronic circuits requiring fewer external components 
  • Superior Dynamic Range and Accuracy:
                         ±24 G FSR with 16/14 bits operation
                        1 mG/4 mG per LSB resolution in 16/14 bits operation mode
                        2 mG total RMS noise
                        100 G recalibration threshold, eliminating the need for frequent automatic recalibration
                        Enables heading accuracy of ±1º
  • Max output data rate of 666 Hz (12 bits mode)
  • Ultra Small Low profile package
                         1.4x1.4x0.5 mm
  • Degaussing with built-in SET/RESET function 
                          Eliminates thermal variation induced offset error (Null field output)
                         Clears the residual magnetization resulting from strong external fields
  • On-chip sensitivity compensation
  • Low power consumption (160 µA @ 7 Hz )
  • 1 nA power down current
  • I2C Slave, FAST (≤400 KHz) mode 
  • 1.8 V single low power supply compatible
  • RoHS compliant


Electronic Compass
GPS Navigation Assist
Linear and rotational position sensing
Vehicle detection