Hi ADI guys,
We test ADXL326 recently as our new project application for low-frequency vibration ,and find there is some frequency response problem,
We test X axis ,when the frequency exceed 500HZ, the acceleration magnitude drop seriously, as below:
| frequency(Hz) | Acceleration |
| 50 | 130 |
| 100 | 130 |
| 400 | 130 |
| 700 | 118 |
| 1000 | 2.8 |
| 1300 | 2.46 |
The actual bandwidth is much lower than 1.6KHz from the spec,How can we improve the ADXL326 BW? We set the the Cout of the RC filter about 3nf .
Thanks a lot!