ICM-20789 TDKInvenSenseICM207897轴压力传感器

数据： TDKInvenSenseICM207897轴压力传感器.pdf

TDK InvenSense ICM-20789 7轴惯性和大气压力传感器在单个小尺寸外形中设有各种高性能的分立元件，用于跟踪旋转和线性运动以及压差。ICM-20789是一款集成式6轴惯性器件，在24引脚LGA封装中结合了3轴陀螺仪、3轴加速度计，以及超低噪声MEMS电容式压力传感器。

The pressure sensor features MEMS capacitive architecture to provide low noise at low power, high sensor throughput, and temperature coefficient offset of ±0.5 Pa/°C. A combination of high accuracy elevation measurements, low power, and temperature stability complemented by the motion tracking 6-axis inertial sensor in a small footprint, is ideal for a wide range of motion tracking applications.

The embedded 6-axis MotionTracking device combines a 3-axis gyroscope, 3-axis accelerometer, and a Digital Motion Processor™ (DMP). A large 4 kB FIFO reduces traffic on the serial bus interface, and power consumption through burst sensor data transmission. The Gyroscope has programmable FSR of ±250 dps, ±500 dps, ±1000 dps and ±2000 dps. The Accelerometer FSR is programmable to ±2g, ±4g, ±8g and ±16g.

The ICM-20789 incorporates a 6-axis inertial sensor and 24-bit ADC for the pressure sensor, programmable digital filters, two temperature sensors – one each in the 6-axis inertial and pressure sensor. Features include an operating voltage of 1.8V and the communication port includes I2C at 400kHz (6-axis and pressure) and 8MHz SPI (6-axis only). A 4mm x 4mm x 1.365mm 24-pin package minimizes board area requirements.

特性

陀螺仪的特点
- Digital-output X-, Y-, and Z-axis angular rate sensors (gyroscopes) with a user-programmable full-scale range of ±250 dps, ±500 dps, ±1000 dps, and ±2000 dps and integrated 16-bit ADCs
- 数字可编程低通滤波器
- 低功率陀螺仪操作
- 工厂校准的灵敏度标度因子
- [医]自行试验
加速度计的特点
- Digital-output X-, Y-, and Z-axis accelerometer with a programmable full scale range of ±2g, ±4g, ±8g, and ±16g and integrated 16-bit ADCs
- 用户可编程中断
- 用于应用程序处理器低功耗操作的运动唤醒中断
- [医]自行试验
压力传感器功能
- 压力操作范围：30kPa～110kPa
- 4 operating modes to optimize noise and power, 3 example modes:x3.2Pa @ 1.3μA (LP mode)
- x0.8Pa @ 5.2μA (LN mode)
- x0.4Pa @ 10.4μA (ULN mode)
- Relative accuracy: ±1 Pa for any 10 hPa change over 950 hPa-1050 hPa at 25°C
- Absolute accuracy: ±1 hPa over 950 hPa-1050 hPa, 0°C to 65°C
- Temperature Coefficient Offset: ±0.5 Pa/°C over 25°C to 45°C at 100 kPa
- 在400千赫兹的I2C
- Temperature sensor accuracy: ±0.4°C
附加特性（additional feature的复数）
- 加速度计和陀螺仪轴之间的最小交叉轴灵敏度
- 4kB FIFO缓冲区使应用程序处理器能够以突发方式读取数据
- 数字输出温度传感器
- 用于陀螺仪、加速度计和温度传感器的用户可编程数字滤波器
- 10000g冲击容限
- 400千赫兹快速模式I2C，用于与所有寄存器通信
- 符合RoHS和绿色要求
运动处理
- Internal Digital 运动处理™ (DMP™) engine supports advanced MotionProcessing and low power functions
- 在低功率陀螺仪和低功率加速度计模式下，DMP操作是可能的