Patent ID: 9729166
Date: 2017-08-08
CPC Classifications: H03M

Claim:
1. A Delta-Sigma Modulator (DSM) comprising: a feedback digital-to-analog converter (DAC); a loop-filter for receiving analog signals from an analog input of said DSM and analog signals from said feedback DAC; an analog dynamic element matching (DEM) shuffler for receiving and selectively re-ordering a set of analog threshold voltages; a quantizer for comparing said set of re-ordered analog threshold voltages from said analog DEM shuffler to an analog output from said loop-filter in order to generate a set of digital quantized signals; and a digital DEM shuffler for receiving said set of digital quantized signals from said quantizer, and for selectively re-ordering a plurality of bit positions of said set of digital quantized signals to generate a set of digital feedback signals to be fed to said feedback DAC, such that DEM operations of a DEM algorithm are divided between said analog and digital DEM shufflers.