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IEEE Solid-State Circuits Letters最新文献

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An 81.5dB SNDR, 2.5 MHz Bandwidth Incremental Continuous-Time Delta-Sigma ADC in 180 nm CMOS 采用 180 纳米 CMOS 的 81.5dB SNDR、2.5 MHz 带宽增量式连续时间三角积分 ADC
IF 2.2
IEEE Solid-State Circuits Letters Pub Date : 2024-06-11 DOI: 10.1109/LSSC.2024.3412634
Aswani Kumar Unnam;Paramita Banerjee;Nagendra Krishnapura
{"title":"An 81.5dB SNDR, 2.5 MHz Bandwidth Incremental Continuous-Time Delta-Sigma ADC in 180 nm CMOS","authors":"Aswani Kumar Unnam;Paramita Banerjee;Nagendra Krishnapura","doi":"10.1109/LSSC.2024.3412634","DOIUrl":"https://doi.org/10.1109/LSSC.2024.3412634","url":null,"abstract":"Adapting a continuous time delta-sigma analog-to-digital converter (ADC) for incremental operation at high sampling rates degrades the noise and distortion due to potential overload of the modulator as it comes out of reset and nonlinear residue on the reset switch due to input current flowing through it in the reset phase. It is shown that the input and DAC currents must simultaneously begin to flow through the first integrating capacitor to minimize the possibility of overload. The first integrator reset has to be released just before the start of the DAC pulse. A feedforward path must be used to ensure that the DAC output is close to the input signal from the beginning. Blocking the input current from flowing through the reset switch in the reset phase eliminates the effect of the nonlinear residue. A 320 MS/s fourth-order incremental delta-sigma ADC prototype in an 180nm process using the above techniques has 90 dB dynamic range, 82 dB SNDR, and 84.5 dB SNR in a 2.5 MHz bandwidth. It consumes 46.3 mW from a 1.8V supply and occupies 0.7 mm2.","PeriodicalId":13032,"journal":{"name":"IEEE Solid-State Circuits Letters","volume":"7 ","pages":"191-194"},"PeriodicalIF":2.2,"publicationDate":"2024-06-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141618102","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
A 500-V, 6.25-MHz GaN-IC With Gate Driver and Level Shifter for Off-Line Power Supplies 用于离线电源的 500V、6.25MHz GaN-IC，带栅极驱动器和电平转换器
IF 2.2
IEEE Solid-State Circuits Letters Pub Date : 2024-06-07 DOI: 10.1109/LSSC.2024.3411390
Niklas Deneke;Bernhard Wicht
{"title":"A 500-V, 6.25-MHz GaN-IC With Gate Driver and Level Shifter for Off-Line Power Supplies","authors":"Niklas Deneke;Bernhard Wicht","doi":"10.1109/LSSC.2024.3411390","DOIUrl":"https://doi.org/10.1109/LSSC.2024.3411390","url":null,"abstract":"Gallium Nitride (GaN) technology enables essential progress in energy efficiency and density, especially in off-line power supplies. This letter presents a monolithic GaN-IC, including a half-bridge, formed by two high-voltage power FETs with respective gate drivers and a high-voltage level shifter, forming a signal interface between high-side and low-side domain, making use of a GaN-on-SOI technology. Verified by experimental results, it achieves 500-V switching at 6.25 MHz and is thus well suited for off-line power supplies.","PeriodicalId":13032,"journal":{"name":"IEEE Solid-State Circuits Letters","volume":"7 ","pages":"207-210"},"PeriodicalIF":2.2,"publicationDate":"2024-06-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141964881","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
A 33V to 1V Ripple-Less Buck Converter With the Inverted AC Current Replica Circuit and Sub-0.5% Output Ripple for 5G Low Earth Orbit Application 一种 33V 至 1V 无纹波降压转换器，具有反向交流电流复制电路和低于 0.5% 的输出纹波，适用于 5G 低地球轨道应用
IF 2.2
IEEE Solid-State Circuits Letters Pub Date : 2024-06-05 DOI: 10.1109/LSSC.2024.3410034
Yi-Hsiang Kao;Jie-Lin Wu;Chih-Cherng Liao;Hui-Hsuan Chang;Wei-Cheng Huang;Hsing-Yen Tsai;Rong-Bin Guo;Ke-Horng Chen;Kuo-Lin Zeng;Ying-Hsi Lin;Shian-Ru Lin;Tsung-Yen Tsai
{"title":"A 33V to 1V Ripple-Less Buck Converter With the Inverted AC Current Replica Circuit and Sub-0.5% Output Ripple for 5G Low Earth Orbit Application","authors":"Yi-Hsiang Kao;Jie-Lin Wu;Chih-Cherng Liao;Hui-Hsuan Chang;Wei-Cheng Huang;Hsing-Yen Tsai;Rong-Bin Guo;Ke-Horng Chen;Kuo-Lin Zeng;Ying-Hsi Lin;Shian-Ru Lin;Tsung-Yen Tsai","doi":"10.1109/LSSC.2024.3410034","DOIUrl":"https://doi.org/10.1109/LSSC.2024.3410034","url":null,"abstract":"The proposed ripple-less buck converter (RLBC) uses a two-phase topology with an inverted ac current replica (IACCR) circuit to reduce output voltage ripple to meet the error vector magnitude (EVM) requirement of 5G new radio (5G NR) low earth orbit (LEO) application. Assistance inductance (AI) circuit emulates inductor current to avoid using extra inductors. Ripple minimization (RM) circuit further reduces output ripple by synchronizing the switching moment of power MOSFETs. Therefore, the proposed RLBC achieves 5G NR LEO standards with an EVM of -28.85dB.","PeriodicalId":13032,"journal":{"name":"IEEE Solid-State Circuits Letters","volume":"7 ","pages":"183-186"},"PeriodicalIF":2.2,"publicationDate":"2024-06-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141474854","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
New Rectification Technique Employing Auxiliary Rectifier for Resonance Control Achieving Compact Size and High Efficiency in CMOS 采用辅助整流器进行谐振控制的新型整流技术，在 CMOS 中实现紧凑尺寸和高效率
IF 2.2
IEEE Solid-State Circuits Letters Pub Date : 2024-06-05 DOI: 10.1109/LSSC.2024.3409710
Babita Gyawali;Ramesh K. Pokharel;Samundra K. Thapa;Adel Barakat;Naoki Shinohara
{"title":"New Rectification Technique Employing Auxiliary Rectifier for Resonance Control Achieving Compact Size and High Efficiency in CMOS","authors":"Babita Gyawali;Ramesh K. Pokharel;Samundra K. Thapa;Adel Barakat;Naoki Shinohara","doi":"10.1109/LSSC.2024.3409710","DOIUrl":"https://doi.org/10.1109/LSSC.2024.3409710","url":null,"abstract":"This article presents the design and realization of a compact size high-efficiency complementary metal-oxide- semiconductor rectifier with resonance control technique employing the concept of parallel rectifier. The methodology involves the integration of two rectifiers, where one is main rectifier, specifically designated for rectification purposes and the other is auxiliary, serves for impedance matching, resulting in no matching at input. Furthermore, the auxiliary rectifier offers control over resonance of the proposed rectifier. The proposed design achieves more than 40% conversion efficiency at 22 dBm of input power for the broadband range from 2.4 to 3.5 GHz, with an active circuit size of \u0000<inline-formula> <tex-math>$0.21~mathrm {mm}^{2}$ </tex-math></inline-formula>\u0000.","PeriodicalId":13032,"journal":{"name":"IEEE Solid-State Circuits Letters","volume":"7 ","pages":"187-190"},"PeriodicalIF":2.2,"publicationDate":"2024-06-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141474849","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
A D-Band Wideband Single-Ended Neutralized Upconversion Mixer With Controlled LO Feedthrough in 65-nm CMOS 65 纳米 CMOS 中具有受控 LO 馈入的 D 波段宽带单端中和上转换混频器
IF 2.7
IEEE Solid-State Circuits Letters Pub Date : 2024-04-26 DOI: 10.1109/LSSC.2024.3393973
Chun Wang;Chenxin Liu;Hans Herdian;Abanob Shehata;Jill Mayeda;Kazuaki Kunihiro;Hiroyuki Sakai;Atsushi Shirane;Kenichi Okada
{"title":"A D-Band Wideband Single-Ended Neutralized Upconversion Mixer With Controlled LO Feedthrough in 65-nm CMOS","authors":"Chun Wang;Chenxin Liu;Hans Herdian;Abanob Shehata;Jill Mayeda;Kazuaki Kunihiro;Hiroyuki Sakai;Atsushi Shirane;Kenichi Okada","doi":"10.1109/LSSC.2024.3393973","DOIUrl":"https://doi.org/10.1109/LSSC.2024.3393973","url":null,"abstract":"A D-band wideband passive single-ended upconversion mixer with controlled LO feedthrough in 65-nm CMOS process is presented in this letter. The LO feedthrough was controlled by the varactor and the neutralizing transmission line between the LO and RF ports of the mixer. In measurement, the proposed passive single-ended mixer had a conversion gain of −13.0±1.5 dB with an ultrawide 3-dB bandwidth from 110 to 160 GHz. The LO feedthrough suppression was from −38.9 to −24.4 dB at 135 GHz by changing the varactor bias. The measured OP1dB was −12.5 dBm at center frequency. The chip occupies 0.35 mm2, including pads.","PeriodicalId":13032,"journal":{"name":"IEEE Solid-State Circuits Letters","volume":"7 ","pages":"167-170"},"PeriodicalIF":2.7,"publicationDate":"2024-04-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141078836","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
GaN Power Switch for Power Distribution Protection 用于配电保护的 GaN 电源开关
IF 2.7
IEEE Solid-State Circuits Letters Pub Date : 2024-04-10 DOI: 10.1109/LSSC.2024.3386870
Ronald Hassib Galvis Chacón;José Alexandre Diniz;Saulo Finco
{"title":"GaN Power Switch for Power Distribution Protection","authors":"Ronald Hassib Galvis Chacón;José Alexandre Diniz;Saulo Finco","doi":"10.1109/LSSC.2024.3386870","DOIUrl":"https://doi.org/10.1109/LSSC.2024.3386870","url":null,"abstract":"The electrical power system (EPS) of satellites requires protection devices to isolate failures in short-circuit conditions that can occur in payloads due to various sources, such as debris, mishandling, or radiation. Latching current limiter (LCL) implemented with a pMOS power transistor is typically used for this task. Radiation can also affect the function of the LCL and compromise the mission of the satellite. Therefore, to improve radiation hardness, LCLs have been developed using different rad-hard techniques, such as the implementation of Wide BandGap (WBG) semiconductors as power switches. Gallium nitride (GaN) transistors are more resistant to radiation due to their intrinsic characteristics. In this letter, an LCL topology with a GaN power switch is presented to improve system reliability for space applications. The LCL has an integrated control circuit in 0.18\u0000<inline-formula> <tex-math>$mu text{m}$ </tex-math></inline-formula>\u0000 CMOS technology powered by an auxiliary source. The proposed LCL was validated by simulation and experimental tests. The LCL limited the current to the set value for a supply voltage of up to 50V and maintained a recovery time of less than 50\u0000<inline-formula> <tex-math>$mu text{s}$ </tex-math></inline-formula>\u0000, under short-circuit tests.","PeriodicalId":13032,"journal":{"name":"IEEE Solid-State Circuits Letters","volume":"7 ","pages":"155-158"},"PeriodicalIF":2.7,"publicationDate":"2024-04-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140813919","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
A Ka-Band Mutual Coupling Resilient Stacked-FET Power Amplifier With 21.2 dBm OP1dB and 27.6% PAE1dB in 45-nm CMOS SOI 45 纳米 CMOS SOI 中具有 21.2 dBm OP1dB 和 27.6% PAE1dB 的 Ka 波段抗互耦叠加场效应晶体管功率放大器
IF 2.7
IEEE Solid-State Circuits Letters Pub Date : 2024-04-10 DOI: 10.1109/LSSC.2024.3386676
Jian Zhang;Dawei Wang;Wei Zhu;Ming Zhai;Xiangjie Yi;Yan Wang
{"title":"A Ka-Band Mutual Coupling Resilient Stacked-FET Power Amplifier With 21.2 dBm OP1dB and 27.6% PAE1dB in 45-nm CMOS SOI","authors":"Jian Zhang;Dawei Wang;Wei Zhu;Ming Zhai;Xiangjie Yi;Yan Wang","doi":"10.1109/LSSC.2024.3386676","DOIUrl":"https://doi.org/10.1109/LSSC.2024.3386676","url":null,"abstract":"This letter presents a Ka-band mutual coupling resilient stacked-FET power amplifier (PA) in 45-nm CMOS silicon on insulator. Two sub-PAs with triple-stacked-FET to increase output-power (Pout) are combined through a quadrature hybrid coupler to keep robust and high performance in the scenario of mutual coupling among the phased-array antennas. A shunt inductor is introduced to deal with the performance deterioration caused by the transistors’ parasitic capacitances and the magnetic coupling cancelling topology is adopted for a more compact layout. The measurement results show that the proposed PA achieves 21.2 dBm OP1dB with 27.6% PAE1dB and 22.2 dBm Psat with 28.8% peak PAE. The OP1dB and PAE1dB are beyond 21 dBm and 22% for a frequency range from 25 to 32 GHz, respectively. The maximum small-signal gain is 26.5 dB with <-19/-14 dB S11/S22. The simulated variation of Psat/OP1dB is less than 0.5/1.1 dBm under a strong voltage-standing-wave-ratio condition.","PeriodicalId":13032,"journal":{"name":"IEEE Solid-State Circuits Letters","volume":"7 ","pages":"147-150"},"PeriodicalIF":2.7,"publicationDate":"2024-04-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140647929","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
248-GHz Subharmonic Mixer Last Transmitter With I/Q Imbalance and LO Feedthrough Calibration 具有 I/Q 不平衡和 LO 馈入校准功能的 248-GHz 次谐波混频器末级发射机
IF 2.7
IEEE Solid-State Circuits Letters Pub Date : 2024-04-10 DOI: 10.1109/LSSC.2024.3387285
Seunghoon Lee;Junhyeong Kim;Kangseop Lee;Ho-Jin Song
{"title":"248-GHz Subharmonic Mixer Last Transmitter With I/Q Imbalance and LO Feedthrough Calibration","authors":"Seunghoon Lee;Junhyeong Kim;Kangseop Lee;Ho-Jin Song","doi":"10.1109/LSSC.2024.3387285","DOIUrl":"https://doi.org/10.1109/LSSC.2024.3387285","url":null,"abstract":"This letter presents a 248 GHz compact direct-conversion transmitter with IQ and LO feedthrough (LOFT) calibration capability, which can achieve a data rate of 20-Gb/s with 16-QAM. The transmitter design incorporates a subharmonic double-balanced mixer configuration, simplifying the complexity of the local oscillator (LO) chain. Furthermore, a Wilkinson power divider and a transmission line terminated by variable capacitors are used to generate LO signals with a 45° phase difference. This configuration, combined with variable gain amplifiers, allows for the precise balancing of IQ amplitude and phase. The measured image rejection ratio and LOFT suppression ratio are better than 25 and 28 dB, respectively, in the range of 242–252 GHz. The DC power consumption of the transmitter is 96.3 mW.","PeriodicalId":13032,"journal":{"name":"IEEE Solid-State Circuits Letters","volume":"7 ","pages":"159-162"},"PeriodicalIF":2.7,"publicationDate":"2024-04-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140818799","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
A Fully Integrated Digital LDO With Adaptive Sampling and Statistical Comparator Selection 具有自适应采样和统计比较器选择功能的全集成数字 LDO
IF 2.7
IEEE Solid-State Circuits Letters Pub Date : 2024-04-04 DOI: 10.1109/LSSC.2024.3385233
Shun Yamaguchi;Takashi Hisakado;Osami Wada;Mahfuzul Islam
{"title":"A Fully Integrated Digital LDO With Adaptive Sampling and Statistical Comparator Selection","authors":"Shun Yamaguchi;Takashi Hisakado;Osami Wada;Mahfuzul Islam","doi":"10.1109/LSSC.2024.3385233","DOIUrl":"https://doi.org/10.1109/LSSC.2024.3385233","url":null,"abstract":"Digital LDOs are gaining attention for their operation with small output capacitance. Adaptive sampling with a large frequency scaling ratio is required for fast transient response with low-power operation. Furthermore, the design of a fluctuation detector to deal with large load steps is important. This letter describes an adaptive-sampling digital LDO with a built-in clock generator and fluctuation detector based on statistical comparator selection. Statistical comparator selection utilizes offset voltage variation to realize stable implicit references. We apply order statistics for run-time calibration. Our proposed LDO fabricated in a commercial 65-nm low-power CMOS process operates from 0.6 to 1.2 V and achieves a maximum current efficiency of 99.99 %. The transient FoM is 0.25 ps.","PeriodicalId":13032,"journal":{"name":"IEEE Solid-State Circuits Letters","volume":"7 ","pages":"163-166"},"PeriodicalIF":2.7,"publicationDate":"2024-04-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140818784","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
A Subthreshold Time-Domain Analog Spiking Neuron With PLL-Based Leak Circuit and Capacitive DAC Synapse 基于 PLL 泄漏电路和电容式 DAC 突触的阈下时域模拟尖峰神经元
IF 2.7
IEEE Solid-State Circuits Letters Pub Date : 2024-04-04 DOI: 10.1109/LSSC.2024.3384762
Taylor Barton;Shea Smith;Yu Hao;Ryan Watson;Kyle Rogers;Parker Allred;Bibhu Datta Sahoo;Nancy Fulda;Jordan T. Yorgason;Karl F. Warnick;Mau-Chung Frank Chang;Yen-Cheng Kuan;Shiuh-Hua Wood Chiang
{"title":"A Subthreshold Time-Domain Analog Spiking Neuron With PLL-Based Leak Circuit and Capacitive DAC Synapse","authors":"Taylor Barton;Shea Smith;Yu Hao;Ryan Watson;Kyle Rogers;Parker Allred;Bibhu Datta Sahoo;Nancy Fulda;Jordan T. Yorgason;Karl F. Warnick;Mau-Chung Frank Chang;Yen-Cheng Kuan;Shiuh-Hua Wood Chiang","doi":"10.1109/LSSC.2024.3384762","DOIUrl":"https://doi.org/10.1109/LSSC.2024.3384762","url":null,"abstract":"The design and measurement of a time-domain analog spiking neuron is described. The proposed neuron leverages time-domain processing using voltage-controlled oscillators (VCOs) and a time-domain comparator to integrate the input spike and trigger the output spike. A novel leaky circuit uses a phase-locked loop (PLL) to drive the phase difference between the two VCOs toward zero. A weighted capacitive digital-to-analog converter (CDAC) synapse merges the input spikes and phase-frequency detector (PFD) outputs to generate the VCO control voltage. The neuron is implemented in a 28-nm CMOS technology and operates under a subthreshold supply voltage of 0.35 V. Occupying \u0000<inline-formula> <tex-math>$154~mu {mathrm{ m}}^{2}$ </tex-math></inline-formula>\u0000, measurement shows a maximum spike rate of 5.5 MHz and energy consumption of 159 fJ/spike.","PeriodicalId":13032,"journal":{"name":"IEEE Solid-State Circuits Letters","volume":"7 ","pages":"143-146"},"PeriodicalIF":2.7,"publicationDate":"2024-04-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140639424","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
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