Hi Lads,
I am trying to interface a a freescale absolute pressure sensor to a AD7799 24 bit ADC.
My plan is to use an 4th or 8th order Bessel filter for sampling at 30 or 60 HZ and good time domain response. I am not sure aboiut using a switched capacitor filter due to their noisiness. A continuous time filter is better in this respect . However a passive filter could be even better but I have not found any literature outlining the design of a such a filter.
Can anybody recommend a readily available- readily put together filter for such an application ?
Regards
I am trying to interface a a freescale absolute pressure sensor to a AD7799 24 bit ADC.
My plan is to use an 4th or 8th order Bessel filter for sampling at 30 or 60 HZ and good time domain response. I am not sure aboiut using a switched capacitor filter due to their noisiness. A continuous time filter is better in this respect . However a passive filter could be even better but I have not found any literature outlining the design of a such a filter.
Can anybody recommend a readily available- readily put together filter for such an application ?
Regards