SCA1000-N1000070

Product Family Specification Doc.Nr. 82 1566 00A Data Sheet SCA1000-N1000070 2-AXIS HIGH PERFORMANCE ANALOG ACCELEROMETER Features Applications SCA1000-N1000070 is targeted to inertial Measurement range 4g sensing applications with high stability and tough Measurement bandwidth 115 Hz environmental requirements. Typical application Low noise ratiometric analog voltage outputs include Excellent bias stability over temperature and time IMU, AHRS Digital SPI temperature output Avionics Comprehensive failure detection features UAV o True self test by deflecting the sensing Navigation and guidance instruments element s proof mass with electrostatic force. o Continuous sensing element interconnection Platform stabilization failure check. Vibration monitoring o Continuous memory parity check. Oil & Gas surveying and drilling RoHS and lead free soldering process compliant Train and Rail industry Robust design, high shock durability (20000g) General Description The SCA1000-N1000070 is a 3D-MEMS-based dual axis accelerometer that enables tactical grade performance for Inertial Measurement Units (IMUs) operating in tough environmental conditions. The measuring axes of the sensor are parallel to the mounting plane and orthogonal to each other. Wide measurement range and bandwidth, low repeatable temperature behavior, low output noise, together with a very robust sensing element and packaging design, make the SCA1000-N1000070 the ideal choice for challenging inertial sensing applications. 12 VDD Sensing Signal conditioning 11 OUT 1 element 1 and filtering A/D conversion 10 ST 1 Self test 1 EEPROM Temperature calibration 1 SCK Sensor memory 9 ST 2 Self test 2 3 MISO SPI interface 4 MOSI 7 CSB Sensing Signal conditioning 5 OUT 2 element 2 and filtering 6 GND Figure 1. Functional block diagram Murata Electronics Oy Subject to changes 1/14 www.muratamems.fi Doc.Nr. 82 1566 00 Rev.A SCA1000 Series TABLE OF CONTENTS SCA1000-N1000070 2-Axis HIGH PERFORMANCE ANALOG ACCELEROMETER .............. 1 Table of Contents...................................................................................................................... 2 1 Electrical Specifications ..................................................................................................... 3 1.1 Absolute Maximum Ratings ................................................................................................... 3 1.2 Performance Characteristics .................................................................................................. 3 1.3 Parameter ................................................................................................................................ 3 1.4 Electrical Characteristics ....................................................................................................... 4 1.5 SPI Interface DC Characteristics ............................................................................................ 4 1.6 SPI Interface AC Characteristics ............................................................................................ 4 1.7 SPI Interface Timing Specifications ....................................................................................... 5 1.8 Electrical Connection.............................................................................................................. 6 2 Functional Description ....................................................................................................... 7 2.1 Measuring Directions .............................................................................................................. 7 2.2 Ratiometric Output .................................................................................................................. 7 2.3 SPI Serial Interface .................................................................................................................. 7 2.4 Self Test and Failure Detection Modes ................................................................................ 10 2.5 Temperature Measurement .................................................................................................. 11 3 Application Information .................................................................................................... 12 3.1 Recommended Circuit Diagrams and Printed Circuit Board Layouts ............................... 12 3.2 Recommended Printed Circuit Board Footprint ................................................................. 13 4 Mechanical Specifications and Reflow Soldering .......................................................... 13 4.1 Mechanical Specifications (Reference only) ....................................................................... 13 4.2 Reflow Soldering ................................................................................................................... 14 Murata Electronics Oy Subject to changes 2/14 www.muratamems.fi Doc. nr. 82 1566 00 Rev.A