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A Ka-Band Time-Modulated Phase-Invariant Variable-Gain Amplifier With 30-dB Gain Tuning Based on Duty-Cycle Control

A Ka-Band Time-Modulated Phase-Invariant Variable-Gain Amplifier With 30-dB Gain Tuning Based on Duty-Cycle Control 150 150
Author(s): Dongfan Xu, Minzhe Tang, Haiyun Gu, Yuxuan Liu, Yilun Chen, Ziyuan Ren, Minghao Fan, Daxu Zhang, Yi Zhang, Duo Li, Zheng Li, Zezheng Liu, Chun Wang, Yudai Yamazaki, Yuncheng Zhang, Kazuaki Kunihiro, Hiroyuki Sakai, Atsushi Shirane, Kenichi Okada

Abstract:

This article presents a time-modulated variable-gain amplifier (VGA) employing a clock-sampling topology governed by a duty-cycle control (DCC) loop. By modulating the effective operation time of the amplifier rather than altering its RF bias conditions, for precise tuning of the clock duty cycle, enabling phase consistency at millimeter-wave frequencies. The …

Published in: IEEE Journal of Solid-State Circuits
Page(s): 1 – 13
Year of Publication: 2026
Electronic ISSN: 1558-173X
DOI: 10.1109/JSSC.2026.3695362
Publisher: IEEE

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STAR-SRAM: 16-bit Floating-Point SRAM-Based Digital Computing-in-Memory Macro in a 28 nm

STAR-SRAM: 16-bit Floating-Point SRAM-Based Digital Computing-in-Memory Macro in a 28 nm 150 150
Author(s): Chuan-Tung Lin, Jonghyun Oh, Mingoo Seok

Abstract:

A digital computing-in-memory (DCIM) macro emerges as a promising building block in a deep neural network (DNN) accelerator. To better support DNN workloads, circuit designers aim to improve three main metrics for macros: energy efficiency, compute density, and weight density. Improvements in those metrics directly translate into reduced energy consumption, …

Published in: IEEE Journal of Solid-State Circuits
Page(s): 1 – 13
Year of Publication: 2026
Electronic ISSN: 1558-173X
DOI: 10.1109/JSSC.2026.3694927
Publisher: IEEE

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GUARD: A Clock and Voltage Glitch Detector With On-Demand Protection

GUARD: A Clock and Voltage Glitch Detector With On-Demand Protection 150 150
Author(s): Mao Li, Sanu K. Mathew, Vivek De, Mingoo Seok

Abstract:

This article presents GUARD, a fully digital, variation-tolerant detector for clock and voltage glitch attacks, featuring an integrated on-demand protection mechanism. Fabricated in 28-nm CMOS, GUARD provides robust security for digital systems by monitoring the system clock for maliciously injected faults. It employs a pair of optimized time-to-digital converters (TDCs) …

Published in: IEEE Journal of Solid-State Circuits
Page(s): 1 – 12
Year of Publication: 2026
Electronic ISSN: 1558-173X
DOI: 10.1109/JSSC.2026.3696209
Publisher: IEEE

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TexCAC: A Direct-Textile-Attachable Microcontroller Integrating 2-MB MRAM for the Command and Control of Advanced Smart Textiles

TexCAC: A Direct-Textile-Attachable Microcontroller Integrating 2-MB MRAM for the Command and Control of Advanced Smart Textiles 150 150
Author(s): Jacob Mack, Qirui Zhang, He Wang, Yi Shen, Jeongtaek Chang, Heejin Yang, Anjali Agrawal, Zichen Fan, Braden Desman, Zane Lewis, Thomas Farrell, David Blaauw, Will Farrell, Jim Owens, Benton H. Calhoun, Dennis Sylvester

Abstract:

Advanced smart textiles (ASTs) are textile-integrated electronic systems that enable many applications, including healthcare, robotics, and IoT. ASTs contain a variety of electronic components to enable whole system functionality (batteries, sensors, SoCs, etc.), which all require orchestration from a central command-and-control (CAC) module. The primary functions of the CAC module …

Published in: IEEE Journal of Solid-State Circuits
Page(s): 1 – 10
Year of Publication: 2026
Electronic ISSN: 1558-173X
DOI: 10.1109/JSSC.2026.3695482
Publisher: IEEE

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An IEEE802.15.4a/z/ab compatible IR-UWB 2TRX with full-duplex radar sensing and aliasing suppressing semi-synchronous TX

An IEEE802.15.4a/z/ab compatible IR-UWB 2TRX with full-duplex radar sensing and aliasing suppressing semi-synchronous TX 150 150
Author(s): Anoop Narayan Bhat, Erwin Allebes, Elbert Bechthum, Zule Xu, Stan Van Der Ven, Mohieddine El Soussi, Johan Van Den Heuvel, Paul Van Zeijl, Paul Mateman, Murat Eskiyerli, Stefano Traferro, Amirashkan Farsaei, Evgenii Tiurin, Sahan Gamage, Pepijn Boer, Igor Petrov, Jochem Govers, Huib Visser, Martijn Hijdra, Sharada Prasad Shantharam, Ivo Marques, Gururaja Kasanadi Ramachandra, Kaijie Ding, Ran Li, Aasish Boora, Peter Vis, Mario Konijnenburg, Arjan Breeschoten, Peng Zhang, Yao-Hong Liu, Christian Bachmann

Abstract:

This letter presents an 802.15.4ab/a/z compatible IR-UWB 2TRX highlighting a full-duplex-based radar, a semi-synchronous TX and TRX’s digital baseband. A capacitive tuning technique proposed in the electrical balance duplexer (EBD)-based duplex RF front-end (RF-FE) improves TX-antenna insertion loss by 1.4dB and the sensitivity of TX-RX isolation …

Published in: IEEE Solid-State Circuits Letters
Page(s): 1 – 1
Year of Publication: 2026
Electronic ISSN: 2573-9603
DOI: 10.1109/LSSC.2026.3697493
Publisher: IEEE

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A Third-Harmonic-Enhanced Triple-Push DCO Utilizing Source-Combining Technique

A Third-Harmonic-Enhanced Triple-Push DCO Utilizing Source-Combining Technique 150 150
Author(s): Qiyao Jiang, Zhuo Xu, Quan Pan, Pui-In Mak, Rui P. Martins, Jun Yin

Abstract:

This article presents a detailed investigation into optimizing the amplitude and phase of the transistor’s terminal voltages to generate a high 3rd-harmonic current in the millimeter-wave (mm-Wave) frequency. Based on the analysis, the digitally controlled source-combining triple-push (SCTP) oscillator is derived to significantly enhance the 3rd-harmonic current by introducing …

Published in: IEEE Journal of Solid-State Circuits
Page(s): 1 – 13
Year of Publication: 2026
Electronic ISSN: 1558-173X
DOI: 10.1109/JSSC.2026.3692500
Publisher: IEEE

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A 15-MHz, 2.7-mm2 Notch-Free Hybrid Magnetic Current Sensor With Feedforward Ripple Cancellation and ±0.8% Local Gain Non-Uniformity

A 15-MHz, 2.7-mm2 Notch-Free Hybrid Magnetic Current Sensor With Feedforward Ripple Cancellation and ±0.8% Local Gain Non-Uniformity 150 150
Author(s): Feng Cheng, Jianlin Xia, Encheng Zhu, Long Zhang, Zhongyuan Fang, Xiaofeng Sun, Dejin Wang, Shaoping Li, Jing Zhu, Yongjia Li, Weifeng Sun

Abstract:

This article proposes a hybrid magnetic current sensor achieving a 15-MHz bandwidth within a compact 2.7-mm2 area. To mitigate the pole–zero mismatch inherent in the two-stage integrator topology, a dual-output Gm-C integrator with subtractor-based compensation is proposed, achieving a ±0.8% local gain non-uniformity. A wideband feedforward ripple suppression scheme cancels …

Published in: IEEE Journal of Solid-State Circuits
Page(s): 1 – 13
Year of Publication: 2026
Electronic ISSN: 1558-173X
DOI: 10.1109/JSSC.2026.3692476
Publisher: IEEE

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A High-Linearity Shunt-Based In-Line Current Sensor With Self-Heating Compensation and 14.4 V 2 MHz PWM Rejection

A High-Linearity Shunt-Based In-Line Current Sensor With Self-Heating Compensation and 14.4 V 2 MHz PWM Rejection 150 150
Author(s): Heng Ma, Huajun Zhang, Yuyan Liu, Marco Berkhout, Qinwen Fan

Abstract:

This article presents a cost-effective, fully integrated shunt-resistor-based in-line current sensor that delivers high linearity and strong PWM rejection, enabling precise current measurement and control in dynamic driving systems like robotics, imaging, and audio. To mitigate the self-heating of the on-chip shunt resistor, which degrades linearity, a location-based thermal compensation …

Published in: IEEE Journal of Solid-State Circuits
Page(s): 1 – 11
Year of Publication: 2026
Electronic ISSN: 1558-173X
DOI: 10.1109/JSSC.2026.3685735
Publisher: IEEE

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A BEV Perception Transformer Accelerator With Saliency-Driven Image/Point Cloud Fusion and Phase-Linked Dataflow in 28 nm CMOS

A BEV Perception Transformer Accelerator With Saliency-Driven Image/Point Cloud Fusion and Phase-Linked Dataflow in 28 nm CMOS 150 150
Author(s): Junyi Qian, Yuncheng Lu, Zhangrui Qian, Lishuo Deng, Zhihao Yan, Cai Li, Tony Tae-Hyoung Kim, Weiwei Shan

Abstract:

Deploying advanced Transformer-based models for real-time, high-accuracy multimodal bird’s-eye-view (BEV) perception in autonomous driving imposes substantial hardware demands. To address this, we propose a low-cost, low-power image/point-cloud fusion Transformer accelerator that supports two modes: high-performance driving and ultra-low-power sentry operation. We first propose a cross-modal saliency evaluation mechanism …

Published in: IEEE Journal of Solid-State Circuits
Page(s): 1 – 12
Year of Publication: 2026
Electronic ISSN: 1558-173X
DOI: 10.1109/JSSC.2026.3691770
Publisher: IEEE

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