The AIS1200PS is a peripheral acceleration sensor with a single-axis sensing element and an IC interface able to provide acceleration information to a master control unit through a Manchester-coded protocol (125 kbps).

The sensing element, capable of detecting the acceleration, is manufactured using a dedicated process developed by ST to produce inertial sensors and actuators in silicon.

The IC interface is manufactured using a BCD process that allows a high level of integration. The device is factory trimmed to better tune the sensing element characteristics with the acceleration information to be supplied.

The AIS1200PS has a full scale of ±200 g. The acquisition chain is made up of a C/V converter, a full-differential charge amplifier, a 2nd order LPF with a cutoff frequency of 175 Hz, and a second charge amplifier to adapt the dynamic range to an SAR A/D converter.

The differential capacitance of the sensor is proportional to the proof mass displacement; thus, by sensing the differential capacitance, the position of the sensor is determined. Then, since the mass position is known and the position is related to the input acceleration, the input acceleration can be easily deduced.

The device is available in a plastic SOIC package with 150 mils reverse frame forming for EMC enhancement and is specified over a temperature range extending from -40 °C to +125 °C.

该传感器是与周边ais1200ps单轴加速度传感元件和IC的接口能够提供加速度信息到主控制单元通过曼彻斯特编码协议（125 kbps的）。

传感功能的加速度检测元件），是一种专用的制造过程由ST使用产生的惯性传感器和致动器中的硅。

该接口是基于BCD工艺制造，允许高层次的集成。该设备是最好调整到厂trimmed加速度传感元件的特点是提供的信息。

蛛网膜下腔出血（SAH）全量表的ais1200ps±200链上。从采集的研究是用C／V转换的全差分电荷放大器、二阶低通滤波器，具有截止频率175赫兹，与第二电荷放大器的动态范围，以适应到一个合成孔径雷达（SAR）的A / D转换器。

该传感器是成比例的差容式轨道位移的差异；因此，通过测量的容，是确定位置的传感器。然后，由于轨道位置是已知的与位置相关的是输入的输入加速度，加速度可以很容易地有。

该器件可用在塑胶SOIC封装与电磁兼容的反向帧形成150密耳的增强是在指定的温度范围内延伸到+125°C - 40°C。

Key Features

• 5 V to 16 V single supply operation

• 10-bit data output

• Embedded voltage regulator

• Embedded self-test

• Asynchronous 2 wire connectivity

• PSI5-A10P v1.3 compliant

• Error detection: single bit even parity

• Automotive AEC-Q100 qualified

• ECOPACK^®compliant

• Extended temperature range: -40 °C to +125 °C

主要特点

5伏至16伏单电源供电

10位数据输出

嵌入式电压调节器

嵌入式自测试

异步2线连接

psi5-a10p V1.3标准

错误检测：单比特奇偶校验

汽车AEC-Q100认证

®符合ECOPACK

扩展温度范围：- 40°C至125°C