Sigma-delta modulators: Tutorial overview, design guide, and state-of-the-art survey

JM de la Rosa - IEEE Transactions on Circuits and Systems I …, 2010 - ieeexplore.ieee.org
This paper presents a tutorial overview of ΣΔ modulators, their operating principles and
architectures, circuit errors and models, design methods, and practical issues. A review of …

Low voltage, low power, inverter-based switched-capacitor delta-sigma modulator

Y Chae, G Han - IEEE Journal of Solid-State Circuits, 2009 - ieeexplore.ieee.org
An operational transconductance amplifier (OTA) is a major building block and consumes
most of the power in switched-capacitor (SC) circuits, but it is difficult to design low-voltage …

Low power design techniques for single-bit audio continuous-time delta sigma ADCs using FIR feedback

A Sukumaran, S Pavan - IEEE Journal of Solid-State Circuits, 2014 - ieeexplore.ieee.org
Single-bit continuous-time delta-sigma modulators (CTDSM) using FIR feedback DACs
inherit the appealing aspects of both single-bit and multibit designs, without the …

A real-time QRS detection system with PR/RT interval and ST segment measurements for wearable ECG sensors using parallel delta modulators

X Tang, Q Hu, W Tang - IEEE transactions on biomedical …, 2018 - ieeexplore.ieee.org
This paper presents a real-time electrocardiogram (ECG) monitoring system for wearable
devices. The system is based on the proposed parallel delta modulator architecture with …

[图书][B] CMOS sigma-delta converters: Practical design guide

JM De la Rosa, R Del Rio - 2013 - books.google.com
A comprehensive overview of Sigma-Delta Analog-to-Digital Converters (ADCs) and a
practical guide to their design in nano-scale CMOS for optimal performance. This book …

An ECG delineation and arrhythmia classification system using slope variation measurement by ternary second-order delta modulators for wearable ECG sensors

X Tang, W Tang - IEEE Transactions on Biomedical Circuits …, 2021 - ieeexplore.ieee.org
This paper presents a system for electrocardiogram (ECG) delineation and arrhythmia
classification. The proposed system consists of a front-end integrated circuit, a delineation …

Inverter-Based Subthreshold Amplifier Techniques and Their Application in 0.3-V -Modulators

L Lv, X Zhou, Z Qiao, Q Li - IEEE Journal of Solid-State Circuits, 2019 - ieeexplore.ieee.org
Subthreshold amplifiers suffer from the limited voltage headroom which leaves little space
for conventional analog techniques to enhance performance and efficiency. This paper …

A 0.8-V 230-W 98-dB DR Inverter-Based Modulator for Audio Applications

H Luo, Y Han, RCC Cheung, X Liu… - IEEE Journal of Solid …, 2013 - ieeexplore.ieee.org
This paper presents a ΣΔ modulator based on a gain-boost class-C inverter for audio
applications. The gain-boost class-C inverter behaves as a low-voltage subthreshold …

An external capacitorless low-dropout regulator with high PSR at all frequencies from 10 kHz to 1 GHz using an adaptive supply-ripple cancellation technique

Y Lim, J Lee, S Park, Y Jo, J Choi - IEEE Journal of Solid-State …, 2018 - ieeexplore.ieee.org
Herein is presented an external capacitorless low-dropout regulator (LDO) that provides
high-power-supply rejection (PSR) at all low-to-high frequencies. The LDO is designed to …

Nested-current-mirror rail-to-rail-output single-stage amplifier with enhancements of DC gain, GBW and slew rate

Z Yan, PI Mak, MK Law, RP Martins… - IEEE Journal of Solid …, 2015 - ieeexplore.ieee.org
For better area and power efficiencies, rail-to-rail-output single-stage amplifiers are a
potential replacement of their multi-stage counterparts, especially for display applications …