I am working on ADXL375 with ODR = 3200Hz. I using 2 Mhz SPI to read the X, Y and Z axis data after setting FIFO (multiple byte read). My settings are as follows,
Register -> Data
0x2C -> 0x0F
0x38 -> 0x90
0x2F -> 0xF9
0x2D -> 0x08
My X, Y and Z axis raw data is varying from -4096 to 4095 counts (approx.). I am calculating the Resultant = sqrt(X*X + Y*Y + Z*Z).
But even if I give a small tap to the sensor PCB using a pencil, my resultant is crossing 4000 counts approx. Is this expected ?
Assume I am holding the sensor board 5 cm above my table and dropping it. What should be the maximum resultant force I should expect ?