IEEE Journal of Solid-State Circuits

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SRAM Static Entropy Extraction From Every Single Transistor in Unmodified Bitcell and Data Fingerprinting for Provenance Assurance

SRAM Static Entropy Extraction From Every Single Transistor in Unmodified Bitcell and Data Fingerprinting for Provenance Assurance 150 150
Author(s): Tianqi Wang, Joydeep Basu, Viveka Konandur Rajanna, Massimo Alioto

Abstract:

In this work, an SRAM macro uniquely extracting static entropy from every transistor in unmodified 6T bitcells is presented, achieving for the first time 6-bit/bitcell entropy. When operating as a conventional physically unclonable function (PUF), it achieves a state-of-the-art 296% PUF-to-SRAM capacity ratio without any error correcting code (ECC), retaining …

Published in: IEEE Journal of Solid-State Circuits
Page(s): 1 – 14
Year of Publication: 2025
Electronic ISSN: 1558-173X
DOI: 10.1109/JSSC.2025.3608858
Publisher: IEEE

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SLiMDO: A Single-Link Multi-Domain-Output Isolated DC–DC Converter With Passive Magnetic Flux Sharing for Local Energy Distribution and Rx Behavior Sensing-Based Global Power Modulation

SLiMDO: A Single-Link Multi-Domain-Output Isolated DC–DC Converter With Passive Magnetic Flux Sharing for Local Energy Distribution and Rx Behavior Sensing-Based Global Power Modulation 150 150
Author(s): Jianqiang Jiang, Lei Zhao, Junyao Tang, Cheng Huang

Abstract:

This article introduces a small form-factor single-link multi-domain-output (SLiMDO) isolated dc–dc converter design. The proposed design provides two regulated outputs in separate domains in the receiver (Rx) side with a single micro-transformer. These isolated Rxes achieve local voltage regulation and automatic energy distribution across domains through passive magnetic flux …

Published in: IEEE Journal of Solid-State Circuits
Page(s): 1 – 15
Year of Publication: 2025
Electronic ISSN: 1558-173X
DOI: 10.1109/JSSC.2025.3606903
Publisher: IEEE

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Compressive Sensing Photoacoustic Imaging Receiver With Matrix-Vector-Multiplication SAR ADC

Compressive Sensing Photoacoustic Imaging Receiver With Matrix-Vector-Multiplication SAR ADC 150 150
Author(s): Huan-Cheng Liao, Shunyao Zhang, Yumin Su, Arvind Govinday, Yiwei Zou, Wei Wang, Vivek Boominathan, Ashok Veeraraghavan, Lei S. Li, Kaiyuan Yang

Abstract:

Wearable photoacoustic imaging devices hold great promise for continuous health monitoring and point-of-care diagnostics. However, the large data volume generated by high-density transducer arrays presents a major challenge for realizing compact and power-efficient wearable systems. This article presents a photoacoustic imaging receiver (RX) that embeds compressive sensing directly into the …

Published in: IEEE Journal of Solid-State Circuits
Page(s): 1 – 13
Year of Publication: 2025
Electronic ISSN: 1558-173X
DOI: 10.1109/JSSC.2025.3603157
Publisher: IEEE

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A 6.4-GS/s, 200-MHz BW 77.3-dB DR 71.5-dB SNDR 2× TI Extrapolated CT DSM Employing Broadband Hybrid-Inputs Adder and Nonlinearity-Suppression DAC Encoder

A 6.4-GS/s, 200-MHz BW 77.3-dB DR 71.5-dB SNDR 2× TI Extrapolated CT DSM Employing Broadband Hybrid-Inputs Adder and Nonlinearity-Suppression DAC Encoder 150 150
Author(s): Yuekai Liu, Yichen Jin, Yan Liu, Mingqiang Guo, Sai-Weng Sin, Zhichao Tan, Guoxing Wang, Liang Qi

Abstract:

This article presents a wideband two-channel ( $2{\times }$ ) time-interleaved (TI) continuous-time (CT) delta-sigma modulator (DSM). $2{\times }$ TI technique halves the speed of the whole DSM loop. The feedforward (FF) extrapolation enables an equivalent $2{\times }$ TI implementation using only one complete analog DSM channel. Moreover, a broadband hybrid-input (i.e., resistor/ $G_{…

Published in: IEEE Journal of Solid-State Circuits
Page(s): 1 – 15
Year of Publication: 2025
Electronic ISSN: 1558-173X
DOI: 10.1109/JSSC.2025.3607443
Publisher: IEEE

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A Fast Transient Response Fully Integrated LDO With a Novel Resetting Oscillator Control Method

A Fast Transient Response Fully Integrated LDO With a Novel Resetting Oscillator Control Method 150 150
Author(s): Masoud Kargaran, Amir Besharati Rad, Ali Medi

Abstract:

This article introduces a novel resetting oscillator regulator (ROR) control method for low-dropout (LDO) regulators, designed to achieve fast settling times for both load and reference input steps. The proposed ROR integrates a high-speed loop that independently functions as an oscillator in a closed-loop configuration, along with a separate high-rate …

Published in: IEEE Journal of Solid-State Circuits
Page(s): 1 – 13
Year of Publication: 2025
Electronic ISSN: 1558-173X
DOI: 10.1109/JSSC.2025.3607941
Publisher: IEEE

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A Millimeter-Wave Direct Digital Transmitter Using Multiphase Subharmonic Switching PA

A Millimeter-Wave Direct Digital Transmitter Using Multiphase Subharmonic Switching PA 150 150
Author(s): Soumya Mahapatra, Mostafa Ayesh, Ce Yang, Mayank Palaria, Shiyu Su, Aoyang Zhang, Mike Shuo-Wei Chen

Abstract:

This article presents a direct digital transmitter (TX) employing a multiphase subharmonic switching (MP-SHS) power amplifier (PA) to achieve both high peak and power back-off (PBO) efficiency with wide signal bandwidth. A phase-shifted subharmonic (SH) local oscillator (LO) divider is proposed to suppress SH spurs with minimal implementation overhead by …

Published in: IEEE Journal of Solid-State Circuits
Page(s): 1 – 16
Year of Publication: 2025
Electronic ISSN: 1558-173X
DOI: 10.1109/JSSC.2025.3605564
Publisher: IEEE

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Fully Analog, Multi-Lag, RF Correlators for Code-Domain Radars Using Margin Propagation

Fully Analog, Multi-Lag, RF Correlators for Code-Domain Radars Using Margin Propagation 150 150
Author(s): Aswin Undavalli, Kareem Rashed, Abdul Rakib Hossain, Gert Cauwenberghs, Shantanu Chakrabartty, Arun Natarajan, Aravind Nagulu

Abstract:

We present a fully analog, multiplier-free, sampled-domain RF correlator to achieve high energy efficiency for radar workloads. The RF correlator employs a split-source follower architecture that leverages the margin propagation (MP) computing paradigm in the sampled domain. As a proof of concept, we implement a $256 \times 256$ fully analog cross correlator …

Published in: IEEE Journal of Solid-State Circuits
Page(s): 1 – 16
Year of Publication: 2025
Electronic ISSN: 1558-173X
DOI: 10.1109/JSSC.2025.3602920
Publisher: IEEE

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An 8.62-μW 75-dB DRSoC Fully Integrated SoC for Spoken Language Understanding

An 8.62-μW 75-dB DRSoC Fully Integrated SoC for Spoken Language Understanding 150 150
Author(s): Sheng Zhou, Zixiao Li, Longbiao Cheng, Jérôme Hadorn, Chang Gao, Qinyu Chen, Tobi Delbruck, Kwantae Kim, Shih-Chii Liu

Abstract:

We present a sub-10- $\mu $ W fully integrated SoC for on-device spoken language understanding (SLU). Its analog feature extractor (FEx) applies global and per-channel automatic gain control (AGC) to extend the system’s dynamic range (DR)—a critical requirement for real-world scenarios, including far-field operations. The on-chip streaming-mode recurrent …

Published in: IEEE Journal of Solid-State Circuits
Page(s): 1 – 16
Year of Publication: 2025
Electronic ISSN: 1558-173X
DOI: 10.1109/JSSC.2025.3602936
Publisher: IEEE

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A 9.5-pJ/bit 40-Mbps Quasi-Static Body Channel Transceiver With Compact Adaptive Equalization

A 9.5-pJ/bit 40-Mbps Quasi-Static Body Channel Transceiver With Compact Adaptive Equalization 150 150
Author(s): Tao He, Yabin Zheng, Longyang Lin, Yongfu Li, Guoxing Wang, Jian Zhao

Abstract:

The key challenge in body-coupled communication (BCC) is achieving high-speed and energy-efficient data transmission in dynamically varying channels, particularly addressing variations in dominant pole frequency and channel gain caused by motion and environmental changes in the quasi-static band. This article proposes a broadband BCC transceiver (TRX) with a compact adaptive …

Published in: IEEE Journal of Solid-State Circuits
Page(s): 1 – 12
Year of Publication: 2025
Electronic ISSN: 1558-173X
DOI: 10.1109/JSSC.2025.3602683
Publisher: IEEE

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