I'm testing AD7730 for weighscale application
From the datasheet, I could find Sinc3 and FIR filter.
FIR filter looks like good performance at 20Hz ~ 60hz noise rejection with slow settling.
S0, I tried to use Sinc3 Filter to reject noise at 20Hz ~ 60Hz.
1. It seems like Sinc3 Filter is not appropriate to reject noise at 20Hz ~ 60Hz. Am I right?
When I saw sinc filter of AD719x series, seems like it can reject 20Hz ~ 60Hz noise.
(Because of output data rate constraint) See the below!
2. Is it possible to apply oversampling technique for AD7730?
e.g) When I set the ODR to 200Hz, Output noise is bigger than 400Hz ODR.(Fast = 1, CHOP enabled)
If so, can you give me data to understand it?
3. If Sinc3 filter is not stand for rejection noise of 20Hz ~ 60Hz, What is its function?