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A Fully Integrated FVF LDO with Enhanced Full-Spectrum Power Supply Rejection Journal article
IEEE Transactions on Power Electronics, 2021,Volume: 36,Issue: 4,Page: 4326-4337
Authors:  Cai,Guigang;  Lu,Yan;  Zhan,Chenchang;  Martins,Rui P.
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Flipped voltage follower (FVF)  full-spectrum power supply rejection (PSR)  fully-integrated low-dropout (LDO)  low-dropout regulator (LDO)  PSR  
Review of Analog-Assisted-Digital and Digital-Assisted-Analog Low Dropout Regulators Journal article
IEEE Transactions on Circuits and Systems II: Express Briefs, 2021,Volume: 68,Issue: 1,Page: 24-29
Authors:  Huang,Mo;  Lu,Yan;  Martins,Rui P.
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analog-assisted-digital  digital-assisted-analog  Low dropout regulator  power supply rejection  transient response  
An 8-Bit 10-GS/s 16× Interpolation-Based Time-Domain ADC with <1.5-ps Uncalibrated Quantization Steps Journal article
IEEE Journal of Solid-State Circuits, 2020,Volume: 55,Issue: 12,Page: 3225-3235
Authors:  Zhang,Minglei;  Zhu,Yan;  Chan,Chi Hang;  Martins,Rui P.
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Analog-to-digital converter (ADC)  and temperature (PVT) robustness  high-speed ADC  metastability  process  supply voltage  time interpolation  time residue  time-domain ADC  time-to-digital converter (TDC)  
A Co-Phase Traction Power Supply System Based on Asymmetric Three-Leg Hybrid Power Quality Conditioner Journal article
IEEE Transactions on Vehicular Technology, 2020,Volume: 69,Issue: 12,Page: 14645-14656
Authors:  Liu,Li;  Dai,Ning Yi;  Lao,Keng Weng;  Hua,Wei
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Asymmetric  hybrid power quality conditioner (HPQC)  railway power conditioner (RPC)  traction power supply system  
LDO-Free Power Management System: A 10-bit Pipelined ADC Directly Powered by Inductor-Based Boost Converter with Ripple Calibration Journal article
IEEE Transactions on Circuits and Systems I: Regular Papers, 2020,Volume: 67,Issue: 12,Page: 4174-4186
Authors:  Wang,Hanyu;  Sin,Sai Weng;  Lam,Chi Seng;  Maloberti,Franco;  Martins,Rui Paulo
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analog-to-digital converters (ADCs)  boost DC-DC converters  pipelined ADC  Power management  ripple calibration  switching-mode power converters  
Design of a 4.2-to-5.1 GHz Ultralow-Power Complementary Class-B/C Hybrid-Mode VCO in 65-nm CMOS Fully Supported by EDA Tools Journal article
IEEE Transactions on Circuits and Systems I: Regular Papers, 2020,Volume: 67,Issue: 11,Page: 3965-3977
Authors:  Martins,Ricardo;  Lourenco,Nuno;  Horta,Nuno;  Zhong,Shenke;  Yin,Jun;  Mak,Pui In;  Martins,Rui P.
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Automatic layout generation  electronic design automation  multi-objective optimization  nanometer CMOS  ultralow-power  voltage-controlled oscillator  
A comparative study of digital low dropout regulators Journal article
Journal of Semiconductors, 2020,Volume: 41,Issue: 11
Authors:  Huang,Mo;  Lu,Yan;  Martins,Rui P.
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digital control  fast transient response  integrated voltage regulator  low dropout regulator (LDO)  power supply rejection (PSR)  
A Calibration-Free Ring-Oscillator PLL with Gain Tracking Achieving 9% Jitter Variation over PVT Journal article
IEEE Transactions on Circuits and Systems I: Regular Papers, 2020,Volume: 67,Issue: 11,Page: 3753-3763
Authors:  Yang,Xiaofeng;  Chan,Chi Hang;  Zhu,Yan;  Martins,Rui Paulo
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calibration-free  discrete-time  gain tracking  Jitter  open-loop  phase noise cancellation (PNC)  phase-locked loop (PLL)  PVT  reference spur  ring voltage-controlled oscillator (RVCO)  
A 0.04% BER Strong PUF with Cell-Bias-Based CRPs Filtering and Background Offset Calibration Journal article
IEEE Transactions on Circuits and Systems I: Regular Papers, 2020,Volume: 67,Issue: 11,Page: 3853-3865
Authors:  Liu,Jiahao;  Zhu,Yan;  Chan,Chi Hang;  Martins,Rui Paulo
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authentication  hardware security  Internet of Things  low power  machine learning attacks  Physical unclonable function (PUF)  
A 0.5-V Supply, 36 nW Bandgap Reference with 42 ppm/°C Average Temperature Coefficient Within-40 °c to 120 °c Journal article
IEEE Transactions on Circuits and Systems I: Regular Papers, 2020,Volume: 67,Issue: 11,Page: 3656-3669
Authors:  Uu,Chi Wa;  Zeng,Wen Liang;  Law,Man Kay;  Lam,Chi Seng;  Martins,Rui Paulo
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Bandgap voltage reference  low power  low voltage  switched capacitor circuits  temperature coefficient