Data sensing circuit with parallel digital filter processing

An analog to digital conversion circuit of a touch screen computing device, wherein the analog to digital conversion circuit comprises:

• a plurality of analog to digital converter circuits operable to convert a plurality of analog signals into a plurality of digital signals at an oversampling rate;
• a digital decimation filtering module operable to convert the plurality of digital signals into a plurality of digital filtered signals at a first output rate;
• a coefficient processor operable to generate real component coefficients and imaginary component coefficients of a filtering function at a plurality of frequencies;
• a first bandpass filter circuit operable to produce first affect values at known frequencies of the plurality of frequencies based on first real component coefficients and first imaginary components of the real component coefficients and imaginary component coefficients and the plurality of digital filtered signals;
• and
• a second bandpass filter circuit operable to produce second affect values at selected frequencies of the plurality of frequencies based on second real component coefficients and second imaginary components of the real component coefficients and imaginary component coefficients and the plurality of digital filtered signals.