I see an 500kHz 40mVrms noise signal on the unfiltered XOUT. I am interested into frequencies up to 10kHz and I use the same opamp circuit like in CN0303 in our board. The 500kHz signal is going through the whole opamp circuit.
- what is that 500kHz signal? The datasheet only mentiones an internal 1MHz and 125kHz clock.
- is it smart to place a 10kHz (15k and 1nF) between ADXL001 and opamp circuit?