On-chip sinusoidal signal generators for electrical impedance spectroscopy: Methodological review

SJ Kweon, AK Rafi, SI Cheon, M Je… - IEEE Transactions on …, 2022 - ieeexplore.ieee.org
This paper reviews architectures and circuit implementations of on-chip sinusoidal signal
generators (SSGs) for electrical impedance spectroscopy (EIS) applications. In recent years …

Impedance-readout integrated circuits for electrical impedance spectroscopy: Methodological review

SI Cheon, H Choi, H Kang, JH Suh… - … Circuits and Systems, 2023 - ieeexplore.ieee.org
This review article provides a comprehensive overview of impedance-readout integrated
circuits (ICs) for electrical impedance spectroscopy (EIS) applications. The readout IC, a …

A 23μW solar-powered keyword-spotting ASIC with ring-oscillator-based time-domain feature extraction

K Kim, C Gao, R Graça, I Kiselev… - … Solid-State Circuits …, 2022 - ieeexplore.ieee.org
Voice-controlled interfaces on acoustic Internet-of-Things (IoT) sensor nodes and mobile
devices require integrated low-power always-on wake-up functions such as Voice Activity …

A 23-μW Keyword Spotting IC With Ring-Oscillator-Based Time-Domain Feature Extraction

K Kim, C Gao, R Graca, I Kiselev… - IEEE Journal of Solid …, 2022 - ieeexplore.ieee.org
This article presents the first keyword spotting (KWS) IC that uses a ring-oscillator-based
time-domain processing technique for its analog feature extractor (FEx). Its extensive usage …

A 9.6-mW/Ch 10-MHz wide-bandwidth electrical impedance tomography IC with accurate phase compensation for early breast cancer detection

J Lee, S Gweon, K Lee, S Um, KR Lee… - IEEE Journal of Solid …, 2020 - ieeexplore.ieee.org
An eight-channel 10-MHz wide-bandwidth electrical impedance tomography (EIT) IC is
proposed for early breast cancer detection system. To increase the resolution of EIT images …

A 0.5-mΩ/√ hz dry-electrode bioimpedance interface with current mismatch cancellation and input impedance of 100 mΩ at 50 kHz

Q Pan, T Qu, B Tang, F Shan… - IEEE Journal of Solid …, 2022 - ieeexplore.ieee.org
This article describes a high-input-impedance, low-noise bioimpedance (BioZ) sensor
interface IC for small-area dry-electrode cardio-respiratory signals monitoring. To facilitate …

A 26.6–119.3-μW 101.9-dB SNR Direct Digitization Bio-Impedance Readout IC

TT Zhang, H Son, J Zhao, CH Heng… - IEEE Journal of Solid …, 2023 - ieeexplore.ieee.org
This article presents a direct digitization bio-impedance (BioZ) readout IC with high power-to-
noise efficiency over a wide input impedance range. This design features a delta-sigma () …

A baseline-tracking single-channel I/Q impedance plethysmogram IC for neckband-based blood pressure and cardiovascular monitoring

CS Park, H Kim, K Lee, DS Keum… - IEEE Journal of Solid …, 2022 - ieeexplore.ieee.org
An impedance plethysmogram (IPG) IC with wide-range fine baseline tracking capability is
proposed to provide continuous blood pressure (BP) and cardiovascular monitoring just by …

An imaged based method for universal performance evaluation of electrical impedance tomography systems

Y Wu, D Jiang, R Yerworth… - IEEE Transactions on …, 2021 - ieeexplore.ieee.org
This paper describes a simple and reproducible method for universal evaluation of the
performance of electrical impedance tomography (EIT) systems using reconstructed images …

Design of Sub-10-μW Sub-0.1% THD Sinusoidal Current Generator IC for Bio-Impedance Sensing

K Kim, S Kim, HJ Yoo - IEEE Journal of Solid-State Circuits, 2021 - ieeexplore.ieee.org
This article presents a low-power, low-distortion, and compact mixed-signal sinusoidal
current generator (CG) IC for bio-impedance (Bio-Z) sensing applications. By utilizing the …