參數(shù)資料
型號(hào)： LIS3L02DQ
廠商： STMICROELECTRONICS
元件分類： 模擬信號(hào)調(diào)理
英文描述： SPECIALTY ANALOG CIRCUIT, QCC44
封裝： 7 X 7 MM, 1.80 MM HEIGHT, QFN-44
文件頁(yè)數(shù)： 16/20頁(yè)
文件大?。?/td> 473K
代理商： LIS3L02DQ
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LIS3L02DQ
3.1 Terminology
3.1.1 Sensitivity
Sensitivity describes the gain of the sensor and can be determined e.g. by applying 1g acceleration to it.
As the sensor can measure DC accelerations this can be done easily by pointing the axis of interest to-
wards 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. By doing so,
±1g acceleration is applied to the sensor. Subtracting the
larger output value from the smaller one and divide the result by 2 leads to the actual sensitivity of the
sensor. This value changes very little over temperature (see sensitivity temperature change) and also very
little over time. The Sensitivity Tolerance describes the range of Sensitivities of a large population of sen-
sors.
3.1.2 Zero g level
Zero-g level (Offset) describes the deviation of an actual output signal from the ideal 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 whereas the Z axis will measure 1g. The output is ideally in the middle of the dynamic
range of the sensor (0000 0000 0000). A deviation from this value is called zero-g offset; the coding is
based two's complement. Offset is to some extend a result of stress to a precise MEMS sensor and there-
fore 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. temper-
ature”. The Zero-g level of an individual sensor is very stable over lifetime. The Zero g level tolerance de-
scribes the range of zero g levels of a population of sensors.
3.1.3 Self Test
Self Test allows to test the mechanical and electrical part of the sensor. By applying a digital code via the
serial interface to the sensor an internal reference is switched to a certain area of the sensor and creates
a defined deflection of the moveable structure. The sensor will generate a defined signal and the interface
chip will perform the signal conditioning. If the output signal changes within the specified amplitude than
the sensor is working properly and the parameters of the interface chip are within tolerance. Self Test
changes linearly with power supply.
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
LIS3L02DQ-TR 功能描述:ACCELEROMETER TRPL AXIS 44QFN RoHS:是 類別:傳感器，轉(zhuǎn)換器 >> 加速計(jì) 系列:- 標(biāo)準(zhǔn)包裝:1 系列:SCA1000 軸:X，Y 加速范圍:±1.7g 靈敏度:1.2V/g 電源電壓:4.75 V ~ 5.25 V 輸出類型:數(shù)字 帶寬:50±30Hz 接口:SPI 安裝類型:表面貼裝 封裝/外殼:12-SMD 供應(yīng)商設(shè)備封裝:12-SMD 其它名稱:551-1007-1
LIS3L02DS 制造商:STMicroelectronics 功能描述:
LIS3L06AL 功能描述:加速計(jì) - 板上安裝 3-axis +/-2g/+/-6g MEMS Intertial Sensr RoHS:否 制造商:Murata 傳感軸:Double 加速:12 g 靈敏度: 封裝 / 箱體: 輸出類型:Analog 數(shù)字輸出 - 位數(shù):11 bit 電源電壓-最大:5.25 V 電源電壓-最小:4.75 V 電源電流:4 mA 最大工作溫度:+ 125 C 最小工作溫度:- 40 C
LIS3L06AL_06 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:MEMS INERTIAL SENSOR-3-axis - +/-2g/6g ultracompact linear accelerometer
LIS3L06ALTR 功能描述:加速計(jì) - 板上安裝 MEMS INERTIAL snsr 3 axis RoHS:否 制造商:Murata 傳感軸:Double 加速:12 g 靈敏度: 封裝 / 箱體: 輸出類型:Analog 數(shù)字輸出 - 位數(shù):11 bit 電源電壓-最大:5.25 V 電源電壓-最小:4.75 V 電源電流:4 mA 最大工作溫度:+ 125 C 最小工作溫度:- 40 C
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