Second-order multi-bit ΣΔ ADC using a Pulse-Width Modulated DAC and an integrating quantizer. - Enrique Prefasi; Ernesto Pun; Luis Hernández 003; Susana Patón (ICECS, 2009)

A 0.1 mm2, Wide Bandwidth Continuous-Time ΔΣ ADC Based on a Time Encoding Quantizer in 0.13 µm CMOS. - Enrique Prefasi; Luis Hernández 003; Susana Patón; Andreas Wiesbauer; Richard Gaggl; Ernesto Pun (IEEE J. Solid State Circuits, 2009)

A 1.2-MHz 10-bit Continuous-Time Sigma-Delta ADC Using a Time Encoding Quantizer. - Luis Hernández 003; Enrique Prefasi; Ernesto Pun; Susana Patón (IEEE Trans. Circuits Syst. II Express Briefs, 2009)

1.4V 13μW 83dB DR CT-ΣΔ modulator with Dual-Slope quantizer and PWM DAC for biopotential signal acquisition. - Francesco Cannillo; Enrique Prefasi; Luis Hernández 003; Ernesto Pun; Refet Firat Yazicioglu; Chris Van Hoof (ESSCIRC, 2011)

A Robust 96.6-dB-SNDR 50-kHz-Bandwidth Switched-Capacitor Delta-Sigma Modulator for IR Imagers in Space Instrumentation. - Michele Dei; Stepan Sutula; Jose Cisneros; Ernesto Pun; Richard Jan Engel Jansen; Lluís Terés; Francisco Serra-Graells (Sensors, 2017)