LSM330 datasheet(19/75 Pages) STMICROELECTRONICS

부품명	LSM330

상세설명	Power-down and sleep modes

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DocID023426 Rev 3

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LSM330

Terminology

75

3

Terminology

3.1

Sensitivity

Linear acceleration sensitivity can be determined by applying 1 g acceleration to the device.

Because the sensor can measure DC accelerations, this can be done easily by pointing the

selected axis towards the ground, noting the output value, rotating the sensor 180 degrees

(pointing towards the sky) and noting the output value again. By doing so, ±1 g acceleration

is applied to the sensor. Subtracting the larger output value from the smaller one, and

dividing the result by 2, leads to the actual sensitivity of the sensor. This value changes very

little over temperature and over time. The sensitivity tolerance describes the range of

sensitivities of a large number of sensors.

Angular rate sensitivity describes the angular rate gain of the sensor and can be determined

by applying a defined angular velocity to the device. This value changes very little over

temperature and also very little overtime.

3.2

Zero-g and zero rate level

Linear acceleration zero-g level offset (TyOff) describes the deviation of an actual output

signal from the ideal output signal if no acceleration is present. A sensor in a steady state on

a horizontal surface will measure 0 g on both the X-axis and Y-axis, whereas the Z-axis will

measure 1 g. Ideally, the output is in the middle of the dynamic range of the sensor (content

of OUT registers 00h, data expressed as two’s complement number). A deviation from the

ideal value in this case is called zero-g offset.

Offset is to some extent a result of stress to MEMS 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 “Linear

acceleration zero-g level change vs. temperature” in Table 3. The zero-g level tolerance

(TyOff) describes the standard deviation of the range of zero-g levels of a group of sensors.

Angular rate zero-rate level describes the actual output value if there is no angular rate

present. The zero-rate level of precise MEMS sensors is, to some extent, a result of stress

to the sensor and therefore the zero-rate level can slightly change after mounting the sensor

onto a printed circuit board or after exposing it to extensive mechanical stress. This value

changes very little over temperature and over time.

유사한 부품 번호 - LSM330

제조업체	부품명	데이터시트	상세설명
STMicroelectronics	LSM330D	1Mb / 66P	Low power mode August 2012 Rev 2
	LSM330DL	1Mb / 54P	Linear sensor module 3D accelerometer sensor and 3D gyroscope sensor
	LSM330DLC	1Mb / 66P	iNEMO inertial module: 3D accelerometer and 3D gyroscope
	LSM330DLCTR	1Mb / 66P	iNEMO inertial module: 3D accelerometer and 3D gyroscope
	LSM330DLTR	1Mb / 54P	Linear sensor module 3D accelerometer sensor and 3D gyroscope sensor

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유사한 설명 - LSM330

제조업체	부품명	데이터시트	상세설명
Renesas Technology Corp	ISL29027	679Kb / 13P	Proximity Sensor with Intelligent Interrupt and Sleep Modes
Intersil Corporation	ISL29027IROZ-T7	492Kb / 13P	Proximity Sensor with Intelligent Interrupt and Sleep Modes February 2, 2012
	ISL29027	638Kb / 13P	Proximity Sensor with Intelligent Interrupt and Sleep Modes
	ISL29028IROZ	624Kb / 16P	Low Power Ambient Light and Proximity Sensor with Intelligent Interrupt and Sleep Modes November 4, 2011
Renesas Technology Corp	ISL29028	820Kb / 16P	Low Power Ambient Light and Proximity Sensor with Intelligent Interrupt and Sleep Modes
Intersil Corporation	ISL29030A	724Kb / 16P	Low Power Ambient Light and Proximity Sensor with Intelligent Interrupt and Sleep Modes
	ISL29028AIROZ-T7	600Kb / 16P	Low Power Ambient Light and Proximity Sensor with Intelligent Interrupt and Sleep Modes January 29, 2014
	ISL29029IROZ-T7	576Kb / 16P	Low Power Ambient Light and Proximity Sensor with Intelligent Interrupt and Sleep Modes November 23, 2010
Renesas Technology Corp	ISL29028A	825Kb / 16P	Low Power Ambient Light and Proximity Sensor with Intelligent Interrupt and Sleep Modes
Renesas Technology Corp	ISL29029	825Kb / 16P	Low Power Ambient Light and Proximity Sensor with Intelligent Interrupt and Sleep Modes

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LSM330 데이터시트(PDF) 19 Page - STMicroelectronics

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유사한 부품 번호 - LSM330

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