Oscillators

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A 16 MHz RC Frequency Reference With ±450 ppm Inaccuracy From –45 °C to 85 °C After Accelerated Aging

A 16 MHz RC Frequency Reference With ±450 ppm Inaccuracy From –45 °C to 85 °C After Accelerated Aging 150 150
Author(s): Karimeldeen Mohamed, Nandor G. Toth, Hui Jiang, Çağrı Gürleyük, Kofi A. A. Makinwa

Abstract:

This article presents a high-accuracy, low-drift 16MHz RC frequency reference implemented in a standard 180 nm CMOS process. It consists of a frequency-locked loop (FLL), which locks the output frequency of a digitally controlled oscillator (DCO) to the time constant of a Wien Bridge (WB) filter. A PNP-based temperature sensor (TS) …

Published in: IEEE Journal of Solid-State Circuits
Page(s): 1 – 9
Year of Publication: 2026
Electronic ISSN: 1558-173X
DOI: 10.1109/JSSC.2026.3673972
Publisher: IEEE

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Sub-Terahertz Wideband ASK Transceiver for 14/27/64 Gb/s 0.27-km/0.12-m/0.1-mm Interconnection in 28-nm CMOS

Sub-Terahertz Wideband ASK Transceiver for 14/27/64 Gb/s 0.27-km/0.12-m/0.1-mm Interconnection in 28-nm CMOS 150 150
Author(s): Dawei Tang, Xiaoyue Xia, Leyang Huang, Zekun Li, Chun Yang, Zheng Yan, Si-Yuan Tang, Peigen Zhou, Rui Zhang, Liqun Lu, Wentao Zhu, Zhe Chen, Jixin Chen, Hao Gao, Wei Hong

Abstract:

This article presents a 28-nm CMOS sub-terahertz (sub-THz) amplitude shift-keying (ASK) transceiver achieving competitive wireless and wireline communication performance. The over-the-air (OTA) link demonstrates 14 Gb/s/0.27 km, 16Gb/s/1m, and 27 Gb/s/12 cm without equalization (EQ), while supporting 64 Gb/s on-Off keying (OOK) and 40 Gb/s pulse amplitude modulation (…

Published in: IEEE Journal of Solid-State Circuits
Page(s): 1 – 17
Year of Publication: 2026
Electronic ISSN: 1558-173X
DOI: 10.1109/JSSC.2026.3665552
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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Dual-Band Voltage-Controlled Oscillator for CB and HF RFID Bands in a Flexible IGZO Technology

Dual-Band Voltage-Controlled Oscillator for CB and HF RFID Bands in a Flexible IGZO Technology 150 150
Author(s): Lautaro N. Petrauskas, Bahman K. Boroujeni, Frank Ellinger

Abstract:

In this work, a cross-coupled voltage-controlled oscillator (VCO) for the high frequency RFID and citizen bands (CBs) is investigated, and implemented on a flexible Indium gallium zinc oxide thin film transistor (TFT) technology. To circumvent the challenges of integrating passive components in this frequency range and minimize the circuit’s …

Published in: IEEE Solid-State Circuits Letters
Page(s): 33 – 36
Year of Publication: 2026
Electronic ISSN: 2573-9603
DOI: 10.1109/LSSC.2026.3651909
Publisher: IEEE

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A 298–334-GHz Scalable Injection-Locked Phased-Array Radiator With Second-Subharmonic-Termination-Assisted Waveform Formulation for Power Enhancement

A 298–334-GHz Scalable Injection-Locked Phased-Array Radiator With Second-Subharmonic-Termination-Assisted Waveform Formulation for Power Enhancement 150 150
Author(s): Meng Yang, Liang Wu

Abstract:

This article introduces an injection-locked $4\times 2$ phased-array radiator featuring scalability in both horizontal and vertical dimensions. The system architecture is constructed by sequentially cascading four identical phase-shifting and frequency-quadrupling (PSFQ) elements in a chain-like configuration and then cohering two such chains, thereby achieving global frequency synchronization. Particularly, phase shifting and …

Published in: IEEE Journal of Solid-State Circuits
Page(s): 1 – 12
Year of Publication: 2025
Electronic ISSN: 1558-173X
DOI: 10.1109/JSSC.2025.3624563
Publisher: IEEE

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A Compact, Highly-Digital Sensor-Fusion-Based Joint V dd-Temperature Sensor for SoC Thermal Management

A Compact, Highly-Digital Sensor-Fusion-Based Joint V dd-Temperature Sensor for SoC Thermal Management 150 150
Author(s): Hikmet Seha Öztürk, Julian Arenas, Carlos Tokunaga, Nasser Kurd, Visvesh S. Sathe

Abstract:

This article presents a fine-grained thermal sensing network for thermal management in SoCs. Sensor nodes in this network are made up of joint supply voltage ( $V_{\mathrm {dd}}$ ) and temperature ( $T$ ) sensors, which are compact and highly digital. Measurements from these simple but imperfect sensors are jointly processed to extract …

Published in: IEEE Journal of Solid-State Circuits
Page(s): 1 – 12
Year of Publication: 2025
Electronic ISSN: 1558-173X
DOI: 10.1109/JSSC.2025.3621280
Publisher: IEEE

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A 0.4-V 32-kHz Pulse-Injection Temperature-Compensated Crystal Oscillator With Sub-Cycle CL Modulation and DLL-Reused Temperature Sensor

A 0.4-V 32-kHz Pulse-Injection Temperature-Compensated Crystal Oscillator With Sub-Cycle CL Modulation and DLL-Reused Temperature Sensor 150 150
Author(s): Haihua Li, Pui-In Mak, Rui P. Martins, Ka-Meng Lei

Abstract:

This article presents a 0.4-V 32 kHz pulse-injection (PI) temperature-compensated crystal oscillator (TCXO) that incorporates subcycle capacitive load ( $C_{\text {L}}$ ) modulation for frequency compensation. The proposed TCXO compensates for the crystal’s frequency deviation ( $\Delta f$ ) by dynamically adjusting the enabling duration of the additional $C_{\text {L}}$ within each …

Published in: IEEE Journal of Solid-State Circuits
Page(s): 1 – 13
Year of Publication: 2025
Electronic ISSN: 1558-173X
DOI: 10.1109/JSSC.2025.3620824
Publisher: IEEE

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An 8.5 MHz 42 ppm/°C Relaxation Oscillator With Charge-Pump Delay Cancellation and Digital Chopping Demodulation

An 8.5 MHz 42 ppm/°C Relaxation Oscillator With Charge-Pump Delay Cancellation and Digital Chopping Demodulation 150 150
Author(s): Yongjia Li, Jianlin Xia, Feng Cheng, Yifan Cao, Jin Wu, Encheng Zhu, Xiaofeng Sun, Dejin Wang, Long Zhang, Zhongyuan Fang, Weifeng Sun

Abstract:

This letter presents an RC oscillator featuring a mixed-signal compensation loop that simultaneously mitigates comparator offset, loop delay, switch on-resistance, and temperature dependency. The oscillator employs an auxiliary comparator, a charge pump, and a differential difference amplifier (DDA)-based main comparator to suppress ramping voltage overshoots caused by device and …

Published in: IEEE Solid-State Circuits Letters
Page(s): 333 – 336
Year of Publication: 2025
Electronic ISSN: 2573-9603
DOI: 10.1109/LSSC.2025.3615833
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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