LIS3L06AL Datasheet, PDF (7/17 Pages) STMicroelectronics – MEMS INERTIAL SENSOR: 3-axis - +/-2g/6g ULTRACOMPACT LINEAR ACCELEROMETER

LIS3L06AL
2 Mechanical and Electrical Specifications
2.3
Absolute maximum ratings
Stresses above those listed as “absolute maximum ratings” may cause permanent damage to
the device. This is a stress rating only and functional operation of the device under these
conditions is not implied. Exposure to maximum rating conditions for extended periods may
affect device reliability.
Table 4. Absolute maximum ratings
Symbol
Ratings
Vdd Supply voltage
Vin Input Voltage on Any Control pin (ST, FS)
A_POW Acceleration (Any axis, Powered, Vdd=3.3V)
A_UNP Acceleration (Any axis, Not powered)
T_STG Storage Temperature Range
ESD Electrostatic Discharge Protection
Maximum Value
Unit
-0.3 to 7
V
-0.3 to Vdd +0.3
V
3000g for 0.5 ms
10000g for 0.1 ms
3000g for 0.5 ms
10000g for 0.1 ms
-40 to +125
°C
2kV HBM
200V MM
1500V CDM
This is a Mechanical Shock sensitive device, improper handling can cause
permanent damages to the part
This is an ESD sensitive device, improper handling can cause permanent damages
to the part
2.4 Terminology
Sensitivity describes the gain of the sensor and can be determined by applying 1g
acceleration to it. As the sensor can measure DC accelerations this can be done easily by
pointing the axis of interest towards the center of the earth, note the output value, rotate the
sensor by 180 degrees (point to the sky) and note the output value again thus applying ±1g
acceleration to the sensor. Subtracting the larger output value from the smaller one and dividing
the result by 2 will give the actual sensitivity of the sensor. This value changes very little over
temperature (see sensitivity change vs. temperature) and also very little over time. The
Sensitivity Tolerance describes the range of Sensitivities of a large population of sensors.
Zero-g level describes the actual output signal if there is no acceleration present. A sensor in a
steady state on a horizontal surface will measure 0g in X axis and 0g in Y axis. The output is
ideally for a 3.3V powered sensor Vdd/2 = 1650mV. A deviation from ideal 0-g level (1650mV in
this case) is called Zero-g offset. Offset of precise MEMS sensors is to some extend a result of
stress to the sensor and therefore the offset can slightly change after mounting the sensor onto
a printed circuit board or exposing it to extensive mechanical stress. Offset changes little over
temperature - see “Zero-g level change vs. temperature” - the Zero-g level of an individual
sensor is very stable over lifetime. The Zero-g level tolerance describes the range of Zero-g
levels of a population of sensors.
CD00068498
7/17