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Design >> Mixed-Signal Design >> Incrmental ADC filter section
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Message started by singh on Dec 15^th, 2011, 6:19am

Title: Incrmental ADC filter section
Post by singh on Dec 15^th, 2011, 6:19am

In the attached document, page 7, for the second order incremental ADC, factor (n-i+1) is derived and used to multiply with comparator output in updown counter in order to implement 2nd order digital filter

Now i want to increase order of digital filter and i tried to derive the factor for 3rd order digital filter implementation and got (n+2-i)*(n+1-i)/2

can someone verify this factor?