The digitally programmable high-order filter uses simple active elements, namely DCCAs and VBs, with the help of R-2R ladders to realize several nth-order filters, ‘n+3’ DCCAs and ‘n’ VBs may be used, and can provide programmability to either the filter's numerator coefficients or to the denominator coefficients. The digitally programmable high-order filter may include R-2R ladders in its negative feedback loops, resulting in a filter in which all coefficients are programmable.