MEMSIC MMC3680KJ

The MMC3680KJ 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 ±30 Gauss (G), with 1 mG per LSB resolution at 16 bits operation mode and 2 mG total RMS noise level, enabling heading accuracy of ±1° in electronic compass applications. 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 MMC3680KJ is packaged in an ultra-small low profile BGA package (1.2x1.2x0.5 mm) and with an operating temperature range from -40 ℃ to +85 ℃. The MMC3680KJ provides an I2C digital output with 400 KHz, fast mode operation.

• Fully integrated 3-axis magnetic sensor and electronic circuits requiring fewer external components
• Superior Dynamic Range and Accuracy:
  • ±30 G FSR with 16 bits operation
  • 1 mG per LSB resolution
  • 2 mG total RMS noise
  • Enables heading accuracy of ±1°
  • Output data rate up to 80 Hz
• Ultra Small Low profile package 1.2x1.2x0.5 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
  • On-chip temperature sensor
• Motion_Detection and Data_Ready Interrupt
• Low power consumption
  • 1 μA power down current
  • I2C Slave, FAST (≤400 KHz) mode
  • 1.8V single low power supply compatible
  • Low to 1.2V I2C interface
  • RoHS compliant P2P compatible with AK09911

• Electronic Compass & GPS Navigation
• Position Sensing