The modulator is a multibit delta-sigma architecture featuring low power and outstanding dynamic range performance with very low levels of spurious tones in the frequency spectrum. The modulator shapes the quantization noise of the internal quantizer to an out-of-band frequency range where the noise is removed by the digital filter. Noise remaining within the pass-band region is thermal noise with constant density (white noise). The integrated noise within the pass band is determined by the digital filter OSR.