I have a question on the frequency response of the ADXL345 at very low frequencies. The data sheet clearly shows that it is possible to reach a 0.1Hz
However, this app note (AN-688) shows phase response falling off at 10Hz.
I realize that this is an older accelerometer, but I don't see any such chart for the ADXL345 in the data sheet. Is this phase response similar to the ADXL345? Do you have any data on that you can share?