SCA2100-D02 Data Sheet SCA2100-D02 2-AXIS HIGH PERFORMANCE ACCELEROMETER WITH DIGITAL SPI INTERFACE Features 3.3V supply voltage 2 g measurement range 2-axis measurement XY directions 30mg offset stability over temp range SPI digital interface Extensive self diagnostics features Size 7.6 x 3.3 x 8.6 mm (w x h x l) Qualified according to AEC-Q100 standard Package, pin-out and SPI protocol compatible with Murata digital accelerometer product family RoHS compliant Dual Flat Lead (DFL) plastic package suitable for lead free soldering process and SMD mounting Proven capacitive 3D-MEMS technology Applications SCA2100-D02 is targeted to applications with high stability requirements. Typical applications include Hill Start Aid (HSA) Electronic Parking Brake (EPB) Roll Over detection Suspension control Inclinometers Motion and position measurements General Description SCA2100-D02 is a high performance three axis accelerometer component based on Murata capacitive 3D-MEMS technology. The component integrates high accuracy micromechanical acceleration sensing together with a flexible SPI digital interface. Dual Flat Lead (DFL) housing guarantees reliable operation over product lifetime. SCA2100-D02 is designed, manufactured and tested for high stability, reliability and quality requirements of automotive applications. The accelerometer has extremely stable output over wide range of temperature, humidity and vibration. The component is qualified against AEC-Q100 standard and has several advanced self diagnostics features. The DFL housing is suitable for SMD mounting and the component is compatible with RoHS and ELV directives. SCA2100-D02 is a part of Murata digital accelerometer family and fully compatible with single axis accelerometers (SCA800 series) and other multi axis accelerometers (SCA2100 series and SCA3100 series). Murata Electronics Oy www.muratamems.fi 1/5 Doc. Nr. 82 682 00 D SCA2100-D02 Performance Characteristics Vdd=3.3 V and ambient temperature unless otherwise specified. Parameter Condition Min 3.0 Analog and digital Vdd Current consumption Active mode Power down mode Measurement axes (XY) Measurement range Operating temperature B) Offset total error C) Offset calibration error Offset temperature drift Sensitivity Total sensitivity error Sensitivity calibration error Sensitivity temperature drift Linearity error Cross-Axis sensitivity Zero acceleration output F) Amplitude response Noise Power on setup time Output data rate Output load SPI clock rate ESD protection Moisture sensitivity level Mechanical shock ID register value A) B) C) D) E) F) Typ A) 3 0.12 -2 -40 -70 -40 D) -30 Temperature range -40 ... +125 C @25 C 5C Temperature range -40 ... +125 C 12 bit output Between 3 Temperature range -40 ... +125 C @25 C 5C Temperature range -40 ... +125 C +1g ... -1g range 16 E) 18 900 0.0637 -4 Max 3.6 5 50 8 2 1 Units V mA mA g C mg mg mg Count/g /Count % FS % FS % FS mg % Counts Hz mg RMS s Hz pF MHz kV kV 20 000 g 2 125 70 40 D) 30 4 0.5 0.8 -20 -3.5 2-complement -3dB frequency 2.5 0 30 20 +3.5 55 5 0.1 2000 Human Body Model Charge Device Model IPC/JEDEC J-STD-020C, Level 3 Customer readable ID register (27hex) 82 Typical values are 3 sigma variation limits from validation test population. Includes offset deviation from 0g value including calibration error and drift over lifetime, temperature and supply voltage. Includes offset deviation from 0g value including calibration error and drift over lifetime. Offset drift due to temperature. Value is a relative value and has been centered to zero. Error defined as maximum change of offset in temperature range. Offset (max)-Offset Min). 100% tested in production. Biggest change of output from RT value due temperature. See figure 4. C/V Oscillator & clock Reference Analog calibration & ADC NonVolatile Memory DEMUX 1:4 Lowpass Filter Decimation Lowpass Filter Decimation Lowpass Filter Decimation Lowpass Filter Decimation Temperature sensor Continuous self test Coordinate Mapping and Calibration SCK SPI i/f MISO MOSI CSB Start-up self test Figure 1. SCA2100-D02 Block diagram Murata Electronics Oy www.muratamems.fi 2/5 Doc. Nr. 82 682 00 D SCA2100-D02 Typical Performance characteristics Y axis Offset calibration error 60 55 50 45 40 35 30 25 20 15 10 5 0 Percent of parts[%] Percent of parts[%] X axis Offset calibration error -25 -20 -15 -10 -5 0 5 10 15 20 25 30 35 60 55 50 45 40 35 30 25 20 15 10 5 0 -25 -20 -15 -10 -5 0 Offset [mg] Temperature dependency of X axis offset 5 +3 sigma 0 Average 5 30 55 80 105 130 -3 sigma -10 Percent of parts[%] Offset[mg] 20 25 30 35 20 25 30 20 25 30 10 -5 15 -40oC...+125oC 15 -20 10 X axis Offset drift at temperature range 20 -45 5 Offset [mg] -15 25 20 15 10 5 0 -20 -30 -25 -20 -15 -10 Tem p [ oC] -5 0 5 10 15 Offset drift [mg] Y axis Offset drift at temperature range Temperature dependency of Y axis offset -40oC...+125oC 20 30 15 Offset[mg] 5 +3 sigma 0 -45 -20 -5 Average 5 30 55 80 105 130 -3 sigma -10 Percent of parts[%] 25 10 20 15 10 5 -15 0 -20 -30 Tem p [ oC] -25 -20 -15 -10 -5 0 5 10 15 30 Offset drift [mg] X axis Sensitivity drift at temperature range X axis Sensitivity at 25oC 60 55 50 45 40 35 30 25 20 15 10 5 0 Percent of parts[%] Percent of parts[%] -40oC...+125oC 893 894 895 896 897 898 899 900 901 902 50 45 40 35 30 25 20 15 10 5 0 903 Sensitivity [LSB/g] Murata Electronics Oy www.muratamems.fi -0.8 -0.7 -0.6 -0.5 -0.4 -0.3 -0.2 -0.1 0 0.1 0.2 Sensitivity error [% FS] 3/5 Doc. Nr. 82 682 00 D SCA2100-D02 Y axis Sensitivity drift at temperature range Y axis Sensitivity at 25oC 60 55 50 45 40 35 30 25 20 15 10 5 0 Percent of parts[%] Percent of parts[%] -40oC...+125oC 893 894 895 896 897 898 899 900 901 902 903 Sensitivity [LSB/g] Murata Electronics Oy www.muratamems.fi 50 45 40 35 30 25 20 15 10 5 0 -0.8 -0.7 -0.6 -0.5 -0.4 -0.3 -0.2 -0.1 0 0.1 0.2 Sensitivity error [% FS] 4/5 Doc. Nr. 82 682 00 D SCA2100-D02 Measument directions Figure 2. Accelerometer measuring directions Housing dimensions Figure 3. Housing dimensions Frequency response Figure 4. Frequency response curves Murata Electronics Oy www.muratamems.fi 5/5 Doc. Nr. 82 682 00 D