产品特点:
在移动终端设备、可穿戴设备中,加速度传感器正成为一种标配器件。比如智能手机、平板电脑中,利用三轴加速度传感器实现屏幕翻转功能;在手环手表中,三轴加速度传感器可以实现计步、睡眠监测等功能;在TWS耳机中,三轴加速度传感器作为人机交互的接口,识别单击、双击等操作。
敏芯股份具备加速度传感器全流程设计能力,包括MEMS设计、ASIC设计、封装及测试。产品功能丰富,具有多种中断输出,内置深度为32的FIFO,可以有效降低整机的系统功耗,特别适用于手环、手表等对功耗有严格要求的应用场景。
产品型号:
| 产品型号 | 供电电压 (V) | Resolution | Range | Interface | FIFO | Package Size(mm) |
| MSA321 | 1.62~3.6 | 12-bits | +/- 16 g | I2C | 64 depth | 2x2x0.95 |
技术参数 :
| Symbol | Parameter | Conditions | Min | Typ | Max | Unit |
| FS | Full scale range |
|
| ±2 |
| g |
| FS | Full scale range |
|
| ±4 |
| g |
| FS | Full scale range |
|
| ±8 |
| g |
| FS | Full scale range |
|
| ±16 |
| g |
| S2g | Sensitivity | each axis at 25°C |
| 1024 |
| LSB/g |
| S4g | Sensitivity | each axis at 25°C |
| 512 |
| LSB/g |
| S8g | Sensitivity | each axis at 25°C |
| 256 |
| LSB/g |
| S16g | Sensitivity | each axis at 25°C |
| 128 |
| LSB/g |
| TCS | Sensitivity Temperature Coefficient | FS=±2g |
| 0.02 |
| %/ oC |
| Off | Zero g Offset @ 25 oC, X/Y/Z axis |
| ±80 |
| mg |
| TCO | Zero g Offset Temperature Coefficient |
| ±1 |
| mg/ oC |
| -40 – +85 °C |
| Nrms | Noise Density | FS=±2g |
| 250 |
| μg/√Hz |
| NL | Non-Linearity |
| 2 |
| %FS |
| best straight line |
| Cs | Cross Axis Sensitivity | Between any two axes |
| 2 |
| % |