Practical dynamic element matching techniques for 3-level unit elements

• Optimized power consumption for DAC at low input level • Very effective first order DEM for the sub segment(s) • Very effective for DEM idle tone remedy • Trade off the gain accuracy across signal amplitude range (there is NO distortion because there is no switching back and forth between smaller DACs and the large DAC, on the fly). • Suitable for applications that require high AC linearity and not DC accuracy