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参数资料
| 型号： | LIS3L02AQ3 |
| 厂商： | STMICROELECTRONICS |
| 元件分类： | 模拟信号调理 |
| 英文描述： | SPECIALTY ANALOG CIRCUIT, PQCC44 |
| 封装： | 7 X 7 MM, 1.80 MM PITCH, QFN-44 |
| 文件页数： | 10/13页 |
| 文件大小： | 280K |
| 代理商： | LIS3L02AQ3 |
LIS3L02AQ3
6/13
be compatible with the external world.
The signals of the sensing element are multiplexed and fed into a low-noise capacitive charge amplifier that im-
plements a Correlated Double Sampling system (CDS) at its output to cancel the offset and the 1/f noise. The
output signal is de-multiplexed and transferred to three different S&Hs, one for each channel and made avail-
able to the outside.
The low noise input amplifier operates at 200 kHz while the three S&Hs operate at a sampling frequency of 66
kHz. This allows a large oversampling ratio, which leads to in-band noise reduction and to an accurate output
waveform.
All the analog parameters (zero-g level, sensitivity and self-test) are ratiometric to the supply voltage. Increasing
or decreasing the supply voltage, the sensitivity and the offset will increase or decrease almost linearly. The self
test voltage change varies cubically with the supply voltage
4.3 Factory calibration
The IC interface is factory calibrated for sensitivity (So) and Zero-g level (Voff).
The trimming values are stored inside the device by a non volatile structure. Any time the device is turned on,
the trimming parameters are downloaded into the registers to be employed during the normal operation. This
allows the user to employ the device without further calibration.
5
Application Hints
Figure 4. LIS3L02AQ3 Electrical Connection
Power supply decoupling capacitors (100nF ceramic or polyester + 10
F Aluminum) should be placed as near
as possible to the device (common design practice).
The LIS3L02AQ3 allows to band limit Voutx, Vouty and Voutz through the use of external capacitors. The re-
commended frequency range spans from DC up to 1.5 KHz. In particular, capacitors must be added at output
pins to implement low-pass filtering for antialiasing and noise reduction. The equation for the cut-off frequency
res
re
s
re
s
Vout Z
Vout Y
100nF
Cload z
LIS3L02AQ3
10
F
Vdd
Vout X
GND
Vdd
GND
1
44
34
33
11
12
22
23
DIRECTION OF THE
DETECTABLE
ACCELERATIONS
Cload x
Cload y
re
s
re
s
re
s
Y
1
X
Z
(top view)
Optional
PD
FS
ST
Digital signals
GND
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相关代理商/技术参数 |
参数描述 |
|---|---|
| LIS3L02AQ3TR | 功能描述:加速计 - 板上安装 INERTIAL SNSR 3 Axis RoHS:否 制造商:Murata 传感轴:Double 加速:12 g 灵敏度: 封装 / 箱体: 输出类型:Analog 数字输出 - 位数:11 bit 电源电压-最大:5.25 V 电源电压-最小:4.75 V 电源电流:4 mA 最大工作温度:+ 125 C 最小工作温度:- 40 C |
| LIS3L02AQ5 | 功能描述:加速计 - 板上安装 Dual low power opamp RoHS:否 制造商:Murata 传感轴:Double 加速:12 g 灵敏度: 封装 / 箱体: 输出类型:Analog 数字输出 - 位数:11 bit 电源电压-最大:5.25 V 电源电压-最小:4.75 V 电源电流:4 mA 最大工作温度:+ 125 C 最小工作温度:- 40 C |
| LIS3L02AQ5TR | 功能描述:加速计 - 板上安装 MEMS INERTIAL snsr 3 axis RoHS:否 制造商:Murata 传感轴:Double 加速:12 g 灵敏度: 封装 / 箱体: 输出类型:Analog 数字输出 - 位数:11 bit 电源电压-最大:5.25 V 电源电压-最小:4.75 V 电源电流:4 mA 最大工作温度:+ 125 C 最小工作温度:- 40 C |
| LIS3L02AQ-TR | 功能描述:ACCELEROMETER TRPL AXIS 44QFN RoHS:是 类别:传感器，转换器 >> 加速计 系列:- 标准包装:1 系列:SCA1000 轴:X，Y 加速范围:±1.7g 灵敏度:1.2V/g 电源电压:4.75 V ~ 5.25 V 输出类型:数字 带宽:50±30Hz 接口:SPI 安装类型:表面贴装 封装/外壳:12-SMD 供应商设备封装:12-SMD 其它名称:551-1007-1 |
| LIS3L02AS | 制造商:STMicroelectronics 功能描述:ACCELEROMETER TRIPLE 2G/ 6G 3V TO 5.25V 24SOIC - Bulk |
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