Frequency

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A Bio-Impedance Readout IC With Phase-Locked Sampling for Real-Time Electrical Impedance Spectroscopy

A Bio-Impedance Readout IC With Phase-Locked Sampling for Real-Time Electrical Impedance Spectroscopy 150 150
Author(s): Seonghyun Park, Song-I Cheon, Haidam Choi, Sein Oh, Sohmyung Ha, Minkyu Je

Abstract:

This article presents an electrical bio-impedance (bioZ) spectroscopy integrated circuit (IC) that achieves both high-throughput and high-accuracy. The proposed phase-locked sampling (PLS) scheme, which employs a sampling phase-locked loop (SPLL) and a reference resistor ( $R_{\textit {REF}}$ ), enables fast and precise impedance demodulation. By extracting the impedance components through sampling …

Published in: IEEE Journal of Solid-State Circuits
Page(s): 1 – 14
Year of Publication: 2026
Electronic ISSN: 1558-173X
DOI: 10.1109/JSSC.2026.3704052
Publisher: IEEE

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A 6.3–18.4 GHz I/Q Receiver With RF and LO Path Reconfigurability for 6G FR3 Applications in 22-nm FD-SOI

A 6.3–18.4 GHz I/Q Receiver With RF and LO Path Reconfigurability for 6G FR3 Applications in 22-nm FD-SOI 150 150
Author(s): Haisu Ju, Yingtao Zou, Gabriel M. Rebeiz

Abstract:

This article presents a 6.3–18.4GHz in-phase and quadrature (I/Q) direct down-conversion receiver featuring reconfigurability in both the radio frequency (RF) and local oscillator (LO) paths. The receiver comprises a multi-band reconfigurable RF front-end, double-balanced passive I/Q mixers, an I/Q LO generation network with a tunable I/Q …

Published in: IEEE Journal of Solid-State Circuits
Page(s): 1 – 14
Year of Publication: 2026
Electronic ISSN: 1558-173X
DOI: 10.1109/JSSC.2026.3698025
Publisher: IEEE

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A Cryogenic Superconducting Quantum Computing Unit Interface Chipset With Phase-Detection-Based Readout and Phase-Shifter-Based Controller

A Cryogenic Superconducting Quantum Computing Unit Interface Chipset With Phase-Detection-Based Readout and Phase-Shifter-Based Controller 150 150
Author(s): Yanshu Guo, Yaoyu Li, Wenqiang Huang, Tian Tian, Nan Wu, Siqi Zhang, Qichun Liu, Tiefu Li, Zhihua Wang, Ning Deng, Yuanjin Zheng, Hanjun Jiang

Abstract:

This article presents a cryogenic quantum interface chipset at 3.5 K for superconducting transmon qubit operations. The chipset comprises a phase-detection readout and a phase-shifter-based polar-modulation controller with flexible scalability. With the proposed phase-detection readout scheme, a 9-bit time-to-digital converter (TDC)-based state detector is used to read out the qubit …

Published in: IEEE Journal of Solid-State Circuits
Page(s): 1 – 18
Year of Publication: 2026
Electronic ISSN: 1558-173X
DOI: 10.1109/JSSC.2026.3695612
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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FeFET-Based CMOS Current Starvation Programmable Delay Element

FeFET-Based CMOS Current Starvation Programmable Delay Element 150 150
Author(s): Albi Mema, Simon Thomann, Hussam Amrouch

Abstract:

Programmable delay elements (PDEs) are crucial circuit building blocks that enable precise timing adjustments of signal transitions. They are used in various critical applications, like time-to-digital converters. They are often used to mitigate aging by clock skew tuning postfabrication. However, typical CMOS PDE designs require many transistors while still offering …

Published in: IEEE Solid-State Circuits Letters
Page(s): 166 – 169
Year of Publication: 2026
Electronic ISSN: 2573-9603
DOI: 10.1109/LSSC.2026.3692304
Publisher: IEEE

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