Fully-integrated timers for ultra-low-power Internet-of-Things nodes—Fundamentals and design techniques
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 …
the research on fully-integrated and energy-efficient kHz-to-MHz timers increased …
A 2-in-1 temperature and humidity sensor with a single FLL wheatstone-bridge front-end
This article presents a CMOS 2-in-1 relative humidity (RH) and temperature (Temp) sensor.
A single analog front-end (AFE) interfaces two on-chip transducers and converts the …
A single analog front-end (AFE) interfaces two on-chip transducers and converts the …
A 32-MHz, 34-μW Temperature-Compensated RC Oscillator Using Pulse Density Modulated Resistors
Highly stable on-chip frequency references offer the possibility of replacing crystal oscillators
in many cost-and form-factor-constrained applications. However, achieving good frequency …
in many cost-and form-factor-constrained applications. However, achieving good frequency …
A 1-μW/MHz RC Oscillator With Three-Point Trimmed 2.1-ppm/°C and Single-Point Trimmed 8.7-ppm/°C Stability From40 °C to 95 °C
KS Park, A Khashaba, A Abdelrahman… - IEEE Journal of Solid …, 2022 - ieeexplore.ieee.org
This article presents techniques to improve the frequency stability of oscillators by
performing first-and second-order temperature compensation without needing resistors with …
performing first-and second-order temperature compensation without needing resistors with …
A reconfigurable tri-mode frequency-locked loop readout circuit for biosensor interfaces
In this article, a frequency-locked loop (FLL) based multimodal readout integrated circuit (IC)
for interfacing with off-chip temperature, electrochemical, and pH sensors is presented. By …
for interfacing with off-chip temperature, electrochemical, and pH sensors is presented. By …
A 20-μs Turn-On Time, 24-kHz Resolution, 1.5–100-MHz Digitally Programmable Temperature-Compensated Clock Generator
A clock generator using a fast-locking frequency-locked loop (FLL)-based RC oscillator and
delta-sigma fractional dividers (FDIVs) to generate programmable temperature-insensitive …
delta-sigma fractional dividers (FDIVs) to generate programmable temperature-insensitive …
A 0.08%/V 32.3-ppm/C 36.6-kHz Unregulated Current-Reuse Ring Oscillator With -Ratio-Based Compensation Using One-Type-Only Resistor
Z Dong, S Liu, X Zhao, B Hao, X Su… - IEEE Journal of Solid …, 2024 - ieeexplore.ieee.org
This article introduces a 36.6-kHz unregulated ring oscillator (RO) tailored for Internet-of-
Things (IoT) applications, demonstrating robustness to variations in supply voltage and …
Things (IoT) applications, demonstrating robustness to variations in supply voltage and …
A Temperature-and Aging-Compensated Oscillator With 1030-ppm Inaccuracy From 40 C to 85 C After Accelerated Aging for 500 h at 125 C
This article presents a temperature-and aging-compensated oscillator (TACO) in which the
long-term drift of the main oscillator is compensated by periodically locking its frequency to …
long-term drift of the main oscillator is compensated by periodically locking its frequency to …
A current-capacitor-based voltage average feedback RC oscillator with no comparators
Z Li, H Zhao, J Liu, S Qiao, Y Zhou - AEU-International Journal of …, 2023 - Elsevier
A fully integrated RC oscillator is presented. A current-capacitor-based voltage average
feedback (IC-VAF) technique is proposed to improve frequency stability. A trip voltage …
feedback (IC-VAF) technique is proposed to improve frequency stability. A trip voltage …
A 0.98 pJ/Cycle 3.7 ppm Long-Term Stability Frequency-Locked Oscillator with Switched-Capacitor and Switched-Resistor Techniques
YS Hsieh, BS Li, KW Cheng - 2023 IEEE International …, 2023 - ieeexplore.ieee.org
This work presents an energy-efficient on-chip resistive frequency-locked oscillator (RFLO)
for achieving superb temperature and frequency stabilities. The resistive frequency-locked …
for achieving superb temperature and frequency stabilities. The resistive frequency-locked …