Bahar Jalali Farahani Mohammed Ismail Adaptive digital techniques to suppress quantization noise of Sigma Delta analog to digital converters. 442-445 2005 conf/glvlsi/2005 ACM Great Lakes Symposium on VLSI http://doi.acm.org/10.1145/1057661.1057766 db/conf/glvlsi/glvlsi2005.html#FarahaniI05