h 16 Gauss, Ultra Small, Low Noise 3-axis Magnetic Sensor MMC3416xPJ FEATURES Fully integrated 3-axis magnetic sensor and electronic circuits requiring fewer external components Superior Dynamic Range and Accuracy: 16 G FSR with 16/14 bits operation 0.5 mG/2 mG per LSB resolution in 16/14 bits operation mode 1.5 mG total RMS noise Enables heading accuracy of 1 Max output data rate of 800 Hz (12 bits mode) Ultra Small Low profile package FUNCTIONAL BLOCK DIAGRAM 1.6x1.6x0.6 mm SET/RESET function noise level, enabling heading accuracy of 1 in Allows for elimination of temperature electronic compass applications. Contact MEMSIC for variation induced offset error (Null field access to advanced calibration and tilt-compensation output) algorithms. Clears the sensors of residual An integrated SET/RESET function provides for the magnetization resulting from strong elimination of error due to Null Field output change external fields with temperature. In addition it clears the sensors of On-chip sensitivity compensation any residual magnetic polarization resulting from Low power consumption (140 A 7 Hz ) exposure to strong external magnets. The 1 A (max) power down function SET/RESET function can be performed for each 2 I C Slave, FAST ( 400 KHz) mode measurement or periodically as the specific application 1.62 V~3.6 V wide power supply operation requires. supported, 1.8 V I/O compatibility. The MMC3416xPJ is packaged in an ultra small low RoHS compliant profile BGA package (1.6 x 1.6 x 0.6 mm,) and with an operating temperature range from -40 C to +85 C. APPLICATIONS 2 The MMC3416xPJ provides an I C digital output with Electronic Compass & GPS Navigation 400 KHz, fast mode operation. Position Sensing DESCRIPTION The MMC3416xPJ is a complete 3-axis magnetic sensor with on-chip signal processing and integrated 2 I C 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 16 Gauss (G), with 0.5 mG/2 mG per LSB resolution for 16/14 bits operation mode and 1.5 mG total RMS MEMSIC, Inc. Information furnished by MEMSIC is believed to be accurate and reliable. However, no responsibility is assumed by MEMSIC for its use, or for any One Technology Drive, Suite 325, Andover, MA01810, USA infringements of patents or other rights of third parties which may result from Tel: +1 978 738 0900 Fax: +1 978 738 0196 its use. No license is granted by implication or otherwise under any patent or www.memsic.com patent rights of MEMSIC. MEMSIC MMC3416xPJ Rev C Page 1 of 13 10/30/2013 SPECIFICATIONS (Measurements 25 C, unless otherwise noted V = V = 1.8 V unless otherwise specified) DA DD Parameter Conditions Min Typ Max Units Field Range (Each Axis) Total applied field G 16 1 V 1.8 3.6 V 1.62 DA Supply Voltage 2 1 V (I C interface) 1.62 1.8 3.6 V DD Supply Voltage Rise Time 5.0 mS BW 1:0 =00, 16 bits mode 140 A 2 Supply Current BW 1:0 =01, 16 bits mode 70 A (7measurements/second) BW 1:0 =10, 14 bits mode 35 A BW 1:0 =11, 12 bits mode 18 A Power Down Current 1.0 A Operating Temperature -40 85 C Storage Temperature -55 125 C Linearity Error FS=16 G 0.25 %FS (Best fit straight line) H =10 G applied Hysteresis 3 sweeps across 16 G 0.1 %FS Repeatability Error 3 sweeps across 16 G 0.1 %FS Alignment Error degrees 1.0 3.0 Transverse Sensitivity 2.0 5.0 % BW 1:0 =00, 16 bits mode 1.5 mG BW 1:0 =01, 16 bits mode 2.0 mG Total RMS Noise BW 1:0 =10, 14 bits mode 4.0 mG BW 1:0 =11, 12 bits mode 6.0 mG Output resolution 16/14/12 bits BW 1:0 =00, 16 bits mode 125 Hz BW 1:0 =01, 16 bits mode 250 Hz Max Output data rate BW 1:0 =10, 14 bits mode 450 Hz BW 1:0 =11, 12 bits mode 800 Hz 3 Heading accuracy 1.0 degrees 16 G -10 +10 % Sensitivity 16 bits mode 2048 counts/G 14 bits mode 512 counts/G 12 bits mode 128 counts/G -40~85C Sensitivity Change Over % Delta from 25C 3 Temperature 16 G 0.1 G 16 bits mode 32768 counts Null Field Output 14 bits mode 8192 counts 12 bits mode 2048 counts Null Field Output Change Over -40~85 C 5 mG Temperature using SET/RESET Delta from 25 C 4 Disturbing Field 25 G Maximum Exposed Field 10000 G 5 3 mG SET/RESET Repeatability 1 1.62 V is the minimum operation voltage, or V / V should not be lower than 1.62 V. DA DD 2 Supply current is proportional to how many measurements performed per second, for example, at one measurement per second, the power consumption will be 140 uA/7=20 A. 3 MEMSIC product enables users to utilize heading accuracy to be 1.0 degree typical when using MEMSICs proprietary software or algorithm 4 This is the magnitude of external field that can be tolerated without changing the sensor characteristics. If the disturbing field is exceeded, a SET/RESET operation is required to restore proper sensor operation. 5 Perform SET/RESET alternately. SET repeatability is defined as the difference in measurement between multiple SET events. RESET repeatability is defined similarly. MEMSIC MMC3416xPJ Rev C Page 2 of 13 10/30/2013