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A Noise-Shaping SAR-Based ExG Sensing Frontend With Dynamic Input-Impedance Boosting and Prediction-Assisted Mismatch-Shaping DEM

A Noise-Shaping SAR-Based ExG Sensing Frontend With Dynamic Input-Impedance Boosting and Prediction-Assisted Mismatch-Shaping DEM 150 150
Author(s): Yiming Han, Linran Zhao, Yaoyao Jia

Abstract:

This article presents a noise-shaping successive approximation register (NS-SAR)-based direct-digitizing electrophysiological (ExG) sensing frontend (SFE) fabricated in a standard 180-nm CMOS process. To address the challenges of large motion artifacts and high electrode–tissue impedance (ETI), we propose three key innovations in our proposed SFE that enable accurate ExG …

Published in: IEEE Journal of Solid-State Circuits
Page(s): 1 – 15
Year of Publication: 2026
Electronic ISSN: 1558-173X
DOI: 10.1109/JSSC.2026.3674986
Publisher: IEEE

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Sub-μA Always-on Drive Loop for 3-Axis MEMS Gyroscope

Sub-μA Always-on Drive Loop for 3-Axis MEMS Gyroscope 150 150
Author(s): Longjie Zhong, Jinwen Zhang, Ling Wang, Wenfei Cao, Kangkang Cai, Tiegang Hu, Zhangming Zhu

Abstract:

The always-on drive loop with low power is a key enabler for intelligent inertial measurement unit (IMU). One of the key design challenges of the always-on drive loop is the trade-off between the always-on power consumption and the wake-up time. To meet this challenge, the burst-mode always-on drive loop composed …

Published in: IEEE Journal of Solid-State Circuits
Page(s): 1 – 12
Year of Publication: 2026
Electronic ISSN: 1558-173X
DOI: 10.1109/JSSC.2026.3672969
Publisher: IEEE

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Adaptive Linearity Enhancement of Low-Noise Amplifiers Using Doherty Active Load Modulation

Adaptive Linearity Enhancement of Low-Noise Amplifiers Using Doherty Active Load Modulation 150 150
Author(s): Hao Yu, Zhaojing Fu, Lianbo Liu, Qiang Zhou, Taiyun Chi, Sensen Li

Abstract:

This article introduces Doherty active load modulation into low-noise amplifier (LNA) designs to dynamically enhance linearity. Under nominal small-signal conditions, the proposed LNA operates like conventional counterparts, consuming no additional power. When strong in-band blockers are present, auxiliary paths are adaptively engaged to activate a high-linearity mode without incurring a …

Published in: IEEE Journal of Solid-State Circuits
Page(s): 1 – 14
Year of Publication: 2026
Electronic ISSN: 1558-173X
DOI: 10.1109/JSSC.2026.3667125
Publisher: IEEE

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A 0.5–2.5-GS/s Resettable Ring-VCO-Based ADC Eliminating Quantization-Noise Shaping

A 0.5–2.5-GS/s Resettable Ring-VCO-Based ADC Eliminating Quantization-Noise Shaping 150 150
Author(s): Tao Lu, Zixiang Liu, Hao Yang, Sai-Weng Sin, Fujiang Lin, Liheng Lou, Robert Bogdan Staszewski, Yizhe Hu

Abstract:

This article presents a Nyquist-rate Analog-to-digital converter (ADC) operating from 0.5 to 2.5 GS/s based on an open-loop resettable ring VCO (R-RVCO). By inherently embedding the $1 {\,}-{\,}z^{-1}$ transfer function, the R-RVCO eliminates the need for an explicit differentiator, suppresses VCO phase-noise (PN) integration, and avoids quantization-noise (QN) shaping within …

Published in: IEEE Journal of Solid-State Circuits
Page(s): 1 – 15
Year of Publication: 2026
Electronic ISSN: 1558-173X
DOI: 10.1109/JSSC.2026.3668599
Publisher: IEEE

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A Pseudo-Series Resonance CMOS Oscillator

A Pseudo-Series Resonance CMOS Oscillator 150 150
Author(s): Jiawen Chen, Kai Xu, Teerachot Siriburanon, Robert Bogdan Staszewski

Abstract:

This article presents a single-core, low-phase-noise (PN) digitally controlled oscillator (DCO) employing a pseudo-series resonance (pseudo-SR) technique with a transformer-based resonator. The proposed pseudo-SR resonator offers two key advantages: 1) a low impedance with a 180° phase shift at the impedance pole, emulating series resonance (SR) to enable single-stage oscillation and reduce …

Published in: IEEE Journal of Solid-State Circuits
Page(s): 1 – 14
Year of Publication: 2026
Electronic ISSN: 1558-173X
DOI: 10.1109/JSSC.2026.3663515
Publisher: IEEE

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A 7.5-μW 35-Keyword End-to-End Keyword Spotting System With Random Augmented On-Chip Training

A 7.5-μW 35-Keyword End-to-End Keyword Spotting System With Random Augmented On-Chip Training 150 150
Author(s): Hyuk-Jin Lee, Kyunghoon Pyo, Taekwang Jang, Mingoo Seok, SeongHwan Cho

Abstract:

Fully integrated keyword spotting (KWS) systems designed for low-power operation face two major challenges. First, increasing the number of supported keywords significantly raises system complexity and power consumption. Second, most existing systems are not personalized to individual users, as they are trained on data from native English speakers, leading to …

Published in: IEEE Journal of Solid-State Circuits
Page(s): 1 – 10
Year of Publication: 2026
Electronic ISSN: 1558-173X
DOI: 10.1109/JSSC.2026.3660634
Publisher: IEEE

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A 54- $\\mu$ W Design-Agnostic Clock, Voltage, and EM-Pulse Fault-Injection Attack Detection Using Time-to-Voltage Conversion

A 54- $\\mu$ W Design-Agnostic Clock, Voltage, and EM-Pulse Fault-Injection Attack Detection Using Time-to-Voltage Conversion 150 150
Author(s): Yudhajit Ray, Archisman Ghosh, Sarthak Antal, Shreyas Sen

Abstract:

This article presents a state-of-the-art design-agnostic clock, voltage, and electromagnetic pulse (EMP)-based fault-injection attack (FIA) detector. The efficient conversion of time-to-voltage information by integrating amplifiers transforms the time anomaly into the voltage domain, enabling its detection at a lower power consumption. The clock-glitch detector design consumes only $53~\mu $ W …

Published in: IEEE Journal of Solid-State Circuits
Page(s): 1 – 13
Year of Publication: 2026
Electronic ISSN: 1558-173X
DOI: 10.1109/JSSC.2026.3655593
Publisher: IEEE

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0.13 K NETD D-Band CMOS Passive Imager With Noise Suppression Analysis

0.13 K NETD D-Band CMOS Passive Imager With Noise Suppression Analysis 150 150
Author(s): Zahra Mohseni, Sajjad Sabbaghi, Hai Yu, Peixin Han, Yuhao Yuan, Qun Jane Gu

Abstract:

This article presents a new system design and in-depth analysis of a wideband, low-power passive imaging receiver based on a Dicke-switch architecture, implemented in 28 nm CMOS technology. The proposed structure employs a three-coil gm-boosting technique for the low-noise amplifier (LNA). This approach reduces the LNA’s noise figure (NF) and …

Published in: IEEE Journal of Solid-State Circuits
Page(s): 830 – 846
Year of Publication: 2026
Electronic ISSN: 1558-173X
DOI: 10.1109/JSSC.2025.3646943
Publisher: IEEE

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A Multiply-and-Accumulate SAR-ADC-Based Hybrid Slepian Beamformer

A Multiply-and-Accumulate SAR-ADC-Based Hybrid Slepian Beamformer 150 150
Author(s): Zhengqi Xu, Zhiyuan Zhao, Michael A. Laun, Coleman DeLude, Justin Romberg, Michael P. Flynn

Abstract:

This article introduces a hybrid Slepian beamforming receiver architecture with low power and area costs. Traditional large-scale true-time-delay (TTD) beamformers for wideband wireless communication suffer from high power consumption and high hardware costs. As an alternative, the Slepian beamforming approach reduces the number of analog-to-digital conversions (ADCs) and delays for …

Published in: IEEE Journal of Solid-State Circuits
Page(s): 1 – 12
Year of Publication: 2026
Electronic ISSN: 1558-173X
DOI: 10.1109/JSSC.2026.3651452
Publisher: IEEE

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