IIS3DWB - ODR/ Data rate Calculation

[Shubha_358]

Hi,
I'm using IIS3DWB MEMS sensor to get the motor vibration data which will have a bandwidth of 6kHz and need to store it to a 16GB SD card
I'm confused to calculate the data rate, i mean what is the ODR i need to consider?

My calculation is :

ODR = 26667 and 3 axis 6 bytes, which becomes 160kb/s and 12.89GB/day precisely, which is a lot of data for a day

Should i consider the ODR to be 2x times the bandwidth (6kHz in this case)?

Also let me know about the raw data and how can i filter out the 6khz frequency data that i need

[TDK]

ODR appears to be fixed here at 26.667 ksps. You can decimate samples after you read them, but the data will have some aliasing due to this. Note that -3dB bandwidth is guaranteed up to 5 kHz per the datasheet.