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CMA3000-D01 Datasheet(PDF) 2 Page - VTI technologies |
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CMA3000-D01 Datasheet(HTML) 2 Page - VTI technologies |
2 / 4 page CMA3000-D01 VTI Technologies Oy PRELIMINARY - Subject to changes 2/4 www.vti.fi Doc. Nr. 8277800.14 Rev. 14 Performance Characteristics 1) Typical supply range 1.7 – 2.7 V Extended supply range 2.7 – 3.6 V Units Parameter Condition Min Typ 2) Max Min Typ 2) Max Vdd 1.7 2.5 2.7 - 3.3 - V Digital I/O Vdd Vdd ≥ Digital I/O Vdd 1.7 1.8 / 2.5 2.7 - 3.3 - V Operating temperature ** -40 - 85 -40 - 85 °C Current consumption * ODR=400 Hz ODR=100 Hz ODR=40 Hz ODR=10 Hz Power down - - - - - 70 50 11 7 4 90 - - - 9 - - - - - 70 50 14 9 3 - - - - - µA Acceleration range * G_RANGE bit 0 G_RANGE bit 1 -8 -2 - - 8 2 - - ±8 ±2 - G Offset calibration error * 3) G_RANGE bit 1 -100 ±25 +100 - ±100 - mg Offset temperature error ** 4) -40 ... +85 °C X and Z axis Y axis ±1 ±2.5 - - ±1 ±2.5 - - mg/°C Sensitivity * 5) Full scale = 2 g Full scale = 8 g - - 56 14 - - - - 56 14 - - Count/g Sensitivity calibration error * -10 - +10 - ±10 - % Sensitivity temperature error ** 6) -40 ... +85 °C - ±0.02 - ±0.02 - %/°C Non-Linearity ** 7) - 1.5 3 - 1.5 - % FS Cross-Axis sensitivity ** 8) G_RANGE bit 1 - 1 - - 1 - % Output Data Rate, ODR ** MODE bits x10 MODE bits x01 MODE bits 011 MODE bits 100 400 100 40 10 - 400 100 40 10 - Hz Bandwidth** 9) ODR/5 ODR/5 - Hz Noise ** 10) Full scale=2 g, ODR=100 Hz Full scale=8 g, ODR=400 Hz - - 13 25 - - 13 25 - - mg RMS Turn on time ** 11) ODR=400 Hz ODR≤100 Hz - - 0.01 2.5/ODR - - 0.01 2.5/ODR - - s I 2C clock rate ** - - 400 - - 400 kHz SPI clock rate ** 500 500 kHz * 100% tested in production ** Qualified during product validation 1) The product is factory calibrated at 2.5 V in room temperature. 2) Typical values are not guaranteed. 3) Z-axis +1g position. Soldering process can cause offset shift which is typically less than 150 mg. Please see TN68_CMA3000_Assembly_Instructions for further details. 4) Offset temperature error = {Count(0g)-Offset} / Sensitivity [ g ]. Sensitivity = Calibrated sensitivity. Offset= Calibrated offset. 5) Sensitivity = {Count(+1g) - Count(-1g)}/2 [Count/g]. 6) Sensitivity temperature error = {[Count(+1g)-Count(-1g)]/2 - Sensitivity} / Sensitivity x 100% [%]. Sensitivity = Calibrated sensitivity. 7) Best fit straight line. 8) The cross-axis sensitivity determines how much acceleration, perpendicular to the measuring axis, couples to the output. The total cross-axis sensitivity is the geometric sum of the sensitivities of the two axes which are perpendicular to the measuring axis. The angular alignment error between X, Y and Z axis is included into the cross axis sensitivity. 9) Frequency responses with 1 st order roll off according to Figure 3. 10) Average noise/axis over the measurement bandwidth defined as ) 2 2 2 ( 3 1 z n y n x n + + , where nx, ny and nz are the measured signal's standard deviation due to noise in x, y and z directions. 11) Settling error less than 1% of FS. |
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