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Using AD7401A with SINC4 Filter with Decimation Factor 128?

Question asked by bsprenger on Apr 2, 2013
Latest reply on Apr 8, 2013 by ShaneO

In order to increase the bandwitdh and the SNR of the acquired data we would like to use a SINC4 Filter with a decimation factor 128 instead of a SINC3 Filter with a decimation factor 256. With these measures we hope to increase the bandwidth to 150 kHz while still retaining a SNR > 80 dB.

 

Does this make sense with the AD7401A or are we missing something? What SNR would you expect?

 

Thanks a lot for your help

 

Bernd

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