Continuous Time Cascade Sigma Delta Modulator without digital cancellation filters. - Susana Patón; Juan A. Torreño; Enrique Prefasi; Luis Hernández 003 (ISCAS, 2010)

A multi-stage and time-based continuous time ΣΔ Architecture using a Gated Ring Oscillator. - Juan A. Torreño; Susana Patón; Luis Hernández 003; Enrique Prefasi; M. Presicce; G. Paoli (ISCAS, 2013)

A noise coupled ΣΔ architecture using a Non Uniform Quantizer. - Juan A. Torreño; Susana Patón; Laura Conesa-Peraleja; Luis Hernández 003; Dietmar Straeussnigg (NORCAS, 2015)