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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  
A 7-bit 2 GS/s Time-Interleaved SAR ADC with Timing Skew Calibration Based on Current Integrating Sampler Journal article
IEEE Transactions on Circuits and Systems I: Regular Papers, 2021,Volume: 68,Issue: 2,Page: 557-568
Authors:  Jiang,Wenning;  Zhu,Yan;  Chan,Chi Hang;  Murmann,Boris;  Martins,Rui Paulo
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Analog-to-digital converter  background timing skew calibration  current integrating sampler  SAR ADC  time-interleaved ADC  timing skew  
Startup Time and Energy-Reduction Techniques for Crystal Oscillators in the IoT Era Journal article
IEEE Transactions on Circuits and Systems II: Express Briefs, 2021,Volume: 68,Issue: 1,Page: 30-35
Authors:  Lei,Ka Meng;  Mak,Pui In;  Martins,Rui P.
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chirping  CMOS  constant-frequency injection  Crystal oscillator  dithering  dynamic load  energy injection  fast startup  inductive  multi-stage  negative resistance  
A Single-Stage Delay-Tuned Active Rectifier for Constant-Current Constant-Voltage Wireless Charging Conference paper
Proceedings of 2020 IEEE Asia Pacific Conference on Circuits and Systems, APCCAS 2020
Authors:  Bai,Xianglong;  Mao,Fangyu;  Lu,Yan;  Zhan,Chenchang;  Martins,Rui P.
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active rectifier  constant current  constant voltage  current sensing  Li-ion battery charging  single-stage wireless charging  
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 Multiband FDD SAW-Less Transmitter for 5G-NR Featuring a BW-Extended N-Path Filter-Modulator, a Switched-BB Input, and a Wideband TIA-Based PA Driver Journal article
IEEE Journal of Solid-State Circuits, 2020,Volume: 55,Issue: 12,Page: 3387-3399
Authors:  Qi,Gengzhen;  Shao,Haijun;  Mak,Pui In;  Yin,Jun;  Martins,Rui P.
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5G new radio (5G-NR)  adjacent-channel leakage rejection (ACLR)  bandpass filter  bandwidth-extended Npath filter modulator (BW-Ext FIL-MOD)  baseband (BB)  CMOS  Miller effect  multiband  N-path  out-of-band (OB)  passive mixer  phase noise  positive-feedback network (PFN)  power amplifier driver (PAD)  surface acoustic wave (SAW)  switched capacitor (SC)  switched-BB input network  transmitter (TX)  
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  
A 10MHz Buck Converter with Type-III Control and Transient Enhancement Transistor Conference paper
Proceedings of 2020 IEEE International Conference on Integrated Circuits, Technologies and Applications, ICTA 2020
Authors:  Zhao,Shuangxing;  Lu,Yan;  Zhan,Chenchang;  Martins,Rui P.
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buck converter  fast transient  transient enhanced transistor  
A 6.78-MHz Single-Stage Regulating Rectifier with Hysteretic Control and Current-Wave Modulation Conference paper
2020 IEEE Asian Solid-State Circuits Conference, A-SSCC 2020
Authors:  Lin,Jie;  Zhan,Chenchang;  Lu,Yan
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Current-wave modulation  Hysteretic control  Load-transient response  Regulating rectifier  Wireless power transfer (WPT)  
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