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A 10.1-ENOB 8kHz Bandwidth 95–250nW PVT-Robust DT Level-Crossing ADC for Sparse and Generic Signals

A 10.1-ENOB 8kHz Bandwidth 95–250nW PVT-Robust DT Level-Crossing ADC for Sparse and Generic Signals 150 150
Author(s): Jixuan Mou, Pieter Harpe, Alessandro Saccon, Eugenio Cantatore, Marco Fattori

Abstract:

This article presents an event-driven discrete-time level crossing analog-to-digital converter (DT-LCADC) that is energy-efficient in converting both sparse and generic signals and is robust against process voltage and temperature (PVT) variations. The proposed DT-LCADC uses the comparator delay to classify each level-crossing event as slow (produced by a small input …

Published in: IEEE Journal of Solid-State Circuits
Page(s): 1 – 12
Year of Publication: 2026
Electronic ISSN: 1558-173X
DOI: 10.1109/JSSC.2026.3683078
Publisher: IEEE

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A 28-nm System-in-One-Macro Computing-in-Memory Chip Utilizing Leakage-Eliminated 2T1C and Capacitor-Over-Logic 1T1C eDRAM

A 28-nm System-in-One-Macro Computing-in-Memory Chip Utilizing Leakage-Eliminated 2T1C and Capacitor-Over-Logic 1T1C eDRAM 150 150
Author(s): Zhihang Qian, Zhaori Cong, Shengzhe Yan, Zeyu Guo, Zhuoyu Dai, Yifan He, Wenyu Sun, Chunmeng Dou, Feng Zhang, Di Geng, Jinshan Yue, Yongpan Liu, Qi Liu, Ming Liu

Abstract:

Computing-in-memory (CIM) is a promising paradigm for energy- and area-efficient implementation of the heavy general matrix multiplication (GEMM) operations, especially in the evolving deep learning algorithms. Though existing CIM macros have demonstrated remarkable energy/area efficiency, the corresponding metrics of the system-level CIM chips degrade due to the peripheral components, …

Published in: IEEE Journal of Solid-State Circuits
Page(s): 1 – 15
Year of Publication: 2026
Electronic ISSN: 1558-173X
DOI: 10.1109/JSSC.2026.3684971
Publisher: IEEE

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A MEMS-Free 4096-Pixel CMOS E-Nose Array With MOF-Based Molecular Selectivity, In-Pixel Thermal Regeneration, and a Compact Single-Coefficient Bandpass Sigma–Delta ADC

A MEMS-Free 4096-Pixel CMOS E-Nose Array With MOF-Based Molecular Selectivity, In-Pixel Thermal Regeneration, and a Compact Single-Coefficient Bandpass Sigma–Delta ADC 150 150
Author(s): Marco Saif, Adam Y. Wang, Shao-Wei Lo, Fuze Jiang, Zhikai Huang, Jiachen Wang, Hangxing Liu, Chih-Jen Shih, Thomas Burger, Hua Wang

Abstract:

This work presents a CMOS-only [micro-electromechanical systems (MEMS)-free] electronic nose (e-nose) for concurrent multi-gas-sensing applications. The proposed system integrates 4096 capacitance-to-digital converter (CDC) pixels, each implementing a compact bandpass sigma–delta ( $\Sigma \Delta $ ) ADC with a single feedback coefficient and no additional feedforward or feedback paths, achieving each pixel footprint …

Published in: IEEE Journal of Solid-State Circuits
Page(s): 1 – 13
Year of Publication: 2026
Electronic ISSN: 1558-173X
DOI: 10.1109/JSSC.2026.3685410
Publisher: IEEE

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A 16× Interleaved 32-GS/s 8b Hybrid ADC With Self-Tracking Inter-Stage Gain Achieving 44.3-dB SFDR at 20.9-GHz Input

A 16× Interleaved 32-GS/s 8b Hybrid ADC With Self-Tracking Inter-Stage Gain Achieving 44.3-dB SFDR at 20.9-GHz Input 150 150
Author(s): Hongzhi Liang, Jun Chang, Yixiao Luo, Li Dang, Haolin Han, Yi Shen, Dengquan Li, Shubin Liu, Ruixue Ding, Zhangming Zhu

Abstract:

This article presents a 32-GS/s 16-channel hierarchical time-interleaved (TI) hybrid analog-to-digital converter (ADC). The prototype utilizes the intrinsic high-speed quantization of time-domain (TD) ADC to reduce the interleaving factor. By incorporating hierarchical sampling and a cascode sampler, the compact TI-ADC achieves 44.3-dB spurious-free dynamic range (SFDR) at 20.9-GHz input. …

Published in: IEEE Journal of Solid-State Circuits
Page(s): 1 – 11
Year of Publication: 2026
Electronic ISSN: 1558-173X
DOI: 10.1109/JSSC.2026.3680919
Publisher: IEEE

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A 6.78-MHz Single-Stage Regulating Rectifier With Dual Outputs Simultaneously Charged in a Half Cycle Achieving 92.2% Efficiency and 131 mW Output Power

A 6.78-MHz Single-Stage Regulating Rectifier With Dual Outputs Simultaneously Charged in a Half Cycle Achieving 92.2% Efficiency and 131 mW Output Power 150 150
Author(s): Quanrong Zhuang, Junyi Sun, Bo Li, Jie Lu, Zixu Wang, Qi’an Zhu, Xin Zhang, Yi Shi, Hao Qiu

Abstract:

Targeting the wireless power transfer (WPT) to implantable medical devices (IMDs), this work presents a 6.78 MHz single-stage dual-output (SSDO) regulating rectifier. It can support the simultaneous charging of both outputs ( $V_{\text {OUT1}}$ and $V_{\text {OUT2}}$ , $V_{\text {OUT1}} \gt V_{\text {OUT2}}$ ) in a half cycle, rather than …

Published in: IEEE Journal of Solid-State Circuits
Page(s): 1 – 12
Year of Publication: 2026
Electronic ISSN: 1558-173X
DOI: 10.1109/JSSC.2026.3682308
Publisher: IEEE

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A 95.3% Efficiency APT/AET/SPT Multimode Multiband CMOS/GaN Envelope Tracking for 6G-Oriented Systems

A 95.3% Efficiency APT/AET/SPT Multimode Multiband CMOS/GaN Envelope Tracking for 6G-Oriented Systems 150 150
Author(s): Chun-Yuan Chen, Yi-Chun Huang, Ke-Horng Chen, Ying-Hsi Lin, Shian-Ru Lin, Tsung-Yen Tsai

Abstract:

This article proposes an envelope-tracking (ET) supply modulator (SM) that is scalable for sixth-generation (6G) communication systems. The design leverages a cost-efficient CMOS process for the power converters and a high-performance GaN process for the high-frequency power amplifier (PA) and the depletion-mode-only GaN-based amplifier. The proposed ET supply modulator (ETSM) …

Published in: IEEE Journal of Solid-State Circuits
Page(s): 1 – 12
Year of Publication: 2026
Electronic ISSN: 1558-173X
DOI: 10.1109/JSSC.2026.3681319
Publisher: IEEE

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A 0.4-V 988-nW Tiny Footprint Time-Domain Audio Feature Extraction ASIC for Keyword Spotting Using Injection-Locked Oscillators

A 0.4-V 988-nW Tiny Footprint Time-Domain Audio Feature Extraction ASIC for Keyword Spotting Using Injection-Locked Oscillators 150 150
Author(s): Ali Mostafa, Emmanuel Hardy, Franck Badets

Abstract:

This work presents an injection-locked oscillator (ILO)-based feature extraction (FEx) system. It combines voltage- and time-domain signal processing to implement a power-efficient programmable gain amplifier (PGA) and a small-footprint, high-selectivity ILO-based voltage-to-time converter bandpass filter (VTC-BPF) bank and rectifier. The VTC-BPF enables direct analog-to-time conversion, eliminating the need for …

Published in: IEEE Journal of Solid-State Circuits
Page(s): 1 – 13
Year of Publication: 2026
Electronic ISSN: 1558-173X
DOI: 10.1109/JSSC.2026.3681481
Publisher: IEEE

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A 3nm Fin-FET 19.87-Mbit/mm2 2RW Pseudo Dual-Port 6T SRAM With Metal Wire-R Tracking and Sequential Access-Aware Dynamic Power Reduction

A 3nm Fin-FET 19.87-Mbit/mm2 2RW Pseudo Dual-Port 6T SRAM With Metal Wire-R Tracking and Sequential Access-Aware Dynamic Power Reduction 150 150
Author(s): Tomotaka Tanaka, Koji Nii, Yuichiro Ishii, Makoto Yabuuchi, Yumito Aoyagi, Masaya Hamada, Kazuto Mizutani, Hidehiro Fujiwara, Isabel Wang, Hong-Chen Cheng, Hung-Jen Liao, Tsung-Yung Jonathan Chang

Abstract:

This article presents a 2-read/write (2RW) pseudo dual-port (PDP) static random access memory (SRAM) macro implemented in advanced 3nm Fin-FET technology, achieving a competitive bit density of 19.87Mbit/mm2 for advanced nodes. To address challenges in process scaling, reliability under process voltage temperature variations, and dynamic power consumption, two …

Published in: IEEE Journal of Solid-State Circuits
Page(s): 1 – 11
Year of Publication: 2026
Electronic ISSN: 1558-173X
DOI: 10.1109/JSSC.2026.3682256
Publisher: IEEE

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A Low-Jitter Fractional-N Sampling PLL With Voltage-Domain Quantization-Error Cancellation Using a Nonlinearity-Replication Technique

A Low-Jitter Fractional-N Sampling PLL With Voltage-Domain Quantization-Error Cancellation Using a Nonlinearity-Replication Technique 150 150
Author(s): Yuhwan Shin, Juyeop Kim, Junseok Lee, Yongwoo Jo, Jaehyouk Choi

Abstract:

This work presents a low-jitter, low-fractional-spur fractional- $N$ digital sampling phase-locked loop (SPLL) that generates output frequencies from 10.4to 11.8GHz. Conventional fractional- $N$ PLLs employ a digital-to-time converter (DTC) to cancel the quantization error (Q-error) of the delta-sigma modulator ( $Delta Sigma $ M). To address the nonlinearity (NL) of the DTC, …

Published in: IEEE Journal of Solid-State Circuits
Page(s): 1 – 12
Year of Publication: 2026
Electronic ISSN: 1558-173X
DOI: 10.1109/JSSC.2026.3681940
Publisher: IEEE

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