In someone else's design circuit I've seen him using two or more ADXL35X's as seismometers ( Figure 1. I think he's using an analog MEMS because his output pins are only 16 pins.).
The answers I've looked up on the web seem to be close to moving average filters. There are other similar circuits (Figure 2-3.)
My question is that for example digital ADXL355-MEMS can do moving average filtering to MCU through synchronous sampling.
So can ADXL354 analogous MEMS directly use parallel connection to achieve noise reduction?
Or do I need some external amplifier circuitry?
[edited by: yaro-0916 at 3:37 PM (GMT -4) on 13 Jun 2022]