This paper presents an overview of emerging circuits and systems techniques which are at
the forefront of the state of the art in ΔΣ modulators, pushing their performance forward and …

Continuous-time Delta-Sigma (ΔΣ) ADCs have obtained a dominant position for the
digitization in wireless receivers. With steadily improved theoretical understanding …

This paper presents the architectural concept and implementation of a mostly digital voltage-
controlled oscillator-analog-to-digital converter (VCO-ADC) with third-order quantization …

This paper presents a compact-area, low-power, highly digital analog-to-digital converter
(ADC) for audio applications. The proposed converter is implemented using only oscillators …

This paper presents a high dynamic range (DR) power-efficient voltage-controlled oscillator
(VCO)-based continuous-time ΔΣ modulator. It introduces a robust and low-power fully …

This article presents a third-order voltage-controlled oscillator (VCO)-based analog-to-digital
converter (ADC) that leverages pseudo-virtual ground (PVG) feedforwarding (FF), linearizing …

An area-efficient, time-domain folding ADC achieves a 10 GS/s conversion speed and a 6 bit
resolution in 65 nm CMOS. The natural time-domain folding effect of the ring oscillator (RO) …

A power and area efficient two-step hybrid voltage-time ADC achieves a 4-GS/s conversion
speed and 39.9-dB SNDR in 28-nm CMOS. Two pipelined time-based converters (TBCs) …

This article presents a power-efficient purely voltage-controlled oscillator (VCO)-based
second-order continuous-time (CT) ΔΣ analog-to-digital converter (ADC), featuring a …

This paper proposes a multistage noise-sha** continuous-time sigma-delta modulator
(CTΣΔM) with on-chip RC time constant calibration circuits, multiple feedforward interstage …