Fully-integrated timers for ultra-low-power Internet-of-Things nodes—Fundamentals and design techniques

MHW Loo, H Ramiah, KM Lei, CC Lim, NS Lai… - IEEE …, 2022 - ieeexplore.ieee.org
Driven by the momentum toward compact and low-power Internet-of-Things (IoT) systems,
the research on fully-integrated and energy-efficient kHz-to-MHz timers increased …

A 0.9-V 28-MHz highly digital CMOS dual-RC frequency reference with±200 ppm inaccuracy from− 40° C to 85° C

W Choi, J Angevare, I Park… - IEEE Journal of Solid …, 2021 - ieeexplore.ieee.org
This article presents an energy-efficient dual-frequency reference intended for wireless
sensor nodes. It consists of a digital frequency-locked loop (FLL) in which the frequency of a …

A discrete-time frequency-locked loop for single-phase grid synchronization under harmonic distortion

G Escobar, D del Puerto-Flores… - … on Power Electronics, 2019 - ieeexplore.ieee.org
This article presents a discrete-time frequency-locked-loop (FLL) scheme that estimates the
in-phase fundamental component of a distorted single-phase reference signal and its …

TID sensitivity assessment of quadrature LC-Tank VCOs implemented in 65-nm CMOS technology

A Karmakar, V De Smedt, P Leroux - Electronics, 2022 - mdpi.com
This article presents a comprehensive assessment of the ionizing radiation induced effects
on the performance of quadrature phase LC-tank based voltage-controlled-oscillators …

A 2MHz, low temperature coefficient relaxation oscillator with hybrid temperature compensation and real-time calibration

Y Zhang, J Cai, S Wang, Y Wang - Aeu-international Journal of Electronics …, 2022 - Elsevier
An RC relaxation oscillator (ROSC) with hybrid temperature compensation as well as the
frequency of 2 MHz is proposed in this paper. Frequency stability is enhanced with analog …

A 254-nW 20-kHz on-chip RC oscillator with 21-ppm/° C minimum temperature stability and 10-ppm long term stability

N Mirchandani, A Shrivastava - IEEE Transactions on Circuits …, 2023 - ieeexplore.ieee.org
This paper presents a temperature compensated RC oscillator (TC-RCO) designed in 130
nm CMOS technology using regular transistors. The TC-RCO uses constant …

Post-manufacturing process and temperature calibration of a 2-MHz on-chip relaxation oscillator

J Mikulić, G Schatzberger… - IEEE Transactions on …, 2021 - ieeexplore.ieee.org
In this work, the design methodology of the relaxation oscillator with the post-processing
trimming option for frequency and temperature coefficient is presented. A novel oscillator …

Low-Noise Distributed RC Oscillator

J Koo, JY Sim - IEEE Transactions on Very Large Scale …, 2021 - ieeexplore.ieee.org
This article proposes a circuit architecture and design strategy of a low-noise oscillator
based on the distributed RC network. The distributed RC network receives a differential step …

On chip 0.5 V 2 GHz four-output quadrature-phase oscillator

MB Elamien, BJ Maundy, L Belostotski… - AEU-International Journal …, 2020 - Elsevier
In this paper, we present a quadrature-phase oscillator that can provide four output voltages
while operating from a single 0.5 V supply. The oscillator is based on two cross-coupled …

An Investigation of the Transient Response of an RC Circuit with an Unknown Capacitance Value Using Probability Theory

M Farooq-i-Azam, ZH Khan, A Ghani, A Siddiq - Symmetry, 2023 - mdpi.com
In this research, we investigate a resistor capacitor electric circuit that exhibits an
exponentially decaying transient response. Due to uncertainty in the precise capacitance …