Hi there,
Engineering student here, sorry if the question seems obvious.
I am trying to get the best accuracy I can out of an ADXL377 accelerometer. The data sheet suggests passive filtering, but would it be possible to get better accuracy if i implemented a few Sallen-Key low pass filters as well? I have listed some information about the ADXL377 below.
Thanks in advance!
I have attached the datasheet, but is a summary of the noise characteristics so you don't have to go digging through it:
White Gaussian Noise, contributes equally at all frequencies
Noise Density: 2.7 mg/sqrt(hz)
They recommend the following caps to limit bandwidth at the pins:
Cap(uF) Bandwidth (Hz)
0.1 50
0.05 100
0.025 200
0.01 500
0.005 1000
with a minimum cap of 1000 pF.
Engineering student here, sorry if the question seems obvious.
I am trying to get the best accuracy I can out of an ADXL377 accelerometer. The data sheet suggests passive filtering, but would it be possible to get better accuracy if i implemented a few Sallen-Key low pass filters as well? I have listed some information about the ADXL377 below.
Thanks in advance!
I have attached the datasheet, but is a summary of the noise characteristics so you don't have to go digging through it:
White Gaussian Noise, contributes equally at all frequencies
Noise Density: 2.7 mg/sqrt(hz)
They recommend the following caps to limit bandwidth at the pins:
Cap(uF) Bandwidth (Hz)
0.1 50
0.05 100
0.025 200
0.01 500
0.005 1000
with a minimum cap of 1000 pF.
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