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LIS244ALHTR Datasheet(PDF) 7 Page - STMicroelectronics |
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LIS244ALHTR Datasheet(HTML) 7 Page - STMicroelectronics |
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7 / 16 page  LIS244ALH Mechanical and electrical specifications 7/16 2 Mechanical and electrical specifications 2.1 Mechanical characteristics Table 3. Mechanical characteristics @ Vdd =3.3 V, T = 25 °C unless otherwise noted(1) Symbol Parameter Test condition Min. Typ.(2) Max. Unit Ar Acceleration range(3) FS pin connected to GND ± 2 g FS pin connected to Vdd ± 6 So Sensitivity(4) Full-scale = ±2 g Vdd/5 - 5% Vdd/5 Vdd/5 + 5% V/g Full-scale = ±6 g Vdd/15 - 10% Vdd/15 Vdd/15 + 10% SoDr Sensitivity change vs temperature Delta from +25 °C ± 0.01 %/°C Voff Zero-g level(4) Full-scale = ±2 g T = 25 °C Vdd/2 - 4% Vdd/2 Vdd/2 + 4% V OffDr Zero-g level change vs temperature Delta from +25 °C ±0.4 mg/°C NL Non linearity(5) Best fit straight line Full-scale = ±2 g ±0.5 % FS CrossAx Cross-axis(6) ±2 % An Acceleration noise density Vdd = 3.3 V; Full-scale = ±2 g 50 µg/ Vt Self test output voltage change(7),(8),(9) X axis T = 25 °C; Vdd=3.3 V 140 mV Y axis T = 25 °C; Vdd=3.3 V -140 mV Fres Sensing element resonant frequency(10) X,Y axis 2.0 KHz Top Operating temperature range -40 +85 °C Wh Product weight 0.040 gram 1. The product is factory calibrated at 3.3 V. The operational power supply range is from 2.4 V to 3.6 V. Voff, So and Vt parameters will vary with supply voltage. 2. Typical specifications are not guaranteed. 3. Guaranteed by wafer level test and measurement of initial offset and sensitivity. 4. Zero-g level and Sensitivity are essentially ratiometric to supply voltage at the calibration level ±8%. 5. Guaranteed by design. 6. Contribution to the measuring output of an inclination/acceleration along any perpendicular axis. 7. “Self test output voltage change” is defined as Vout(Vst=Logic1)-Vout(Vst=Logic0). 8. “Self test output voltage change” varies cubically with supply voltage. 9. When Full-scale is set to ±6 g, “Self test output voltage change” is one third of the specified value at ±2 g. 10. Minimum resonance frequency Fres=2.0 KHz. Sensor bandwidth=1/(2* π*110kΩ*Cload), with Cload>1 nF. Hz |
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