What is the bandwidth of the AD719x?
The –3 dB bandwidth depends on the filter option used.
Sinc4 filter chop disabled: 0.23 x fADC
Sinc3 filter, chop disabled: 0.272 x fADC
Sinc4 filter, chop enabled: 0.24 x fADC
Sinc3 filter, chop enabled: 0.24 x fADC
where fADC is the selected output data rate.
The filter response excel models available on the web here automatically calculate the -3 dB point for the different filter options and different output data rates. This tool gives the -3dB point for the fast settling filter also (AD7193/AD7194) who -3dB point is not listed above. These are omitted above since the -3dB point depends on the amount of averaging used in conjunction with the filter order, chopping enabled/disabled, etc.
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