University of Macau

*Equally Credited Authors (ECAs) 1 Abstract VoxCAD, an intelligent low-power dToF SoC for end-to-end 3D perception applications, is presented with three features: 1) LiDAR dToF sensing-integrated 2D-ROI guided point clou

Abstract This work implements an integrated voltage and current reference circuit, which has low temperature drift. By ensuring the reuse of the main circuit, we propose a current-mirrorbased seamless transition techniqu

Abstract This paper presents a quadratic-exponential noise-coupled (NC) IDSM to achieve a quantization noise shaping effect greater than 4th order with OSR 22, while having high tolerance to DAC non-linearity and a small

Abstract A 17.9-to-22.4GHz quad-core inverse-Class-F VCO achieving PN of −145.6 to −141dBc/Hz and an FoM of 194.3 to 196.9dBc/Hz is reported. The VCO features a circular pentafilar transformer tank that provides high Q1/

Abstract A complementary dual-core VCO with auto f2nd tracking is proposed to achieve consistently low PN and a high FoM over a wide tuning range (TR). Prototyped in 65nm CMOS, the proposed VCO achieves a peak FoM@1/10MH

*Equally Credited Authors (ECAs) Abstract The paper presents a multiple-phase hybrid converter with Q samplers. Split-TON control enables VCF auto-balance and arbitrary phase counts under all-phase interleaving, while 0V

Abstract This work presents a battery charger for smartwatches based on a mesh-connected continuously scalable-conversion ratio converter that uses only two flying capacitors. The proposed design reduces the number of in

Abstract This work proposes a predefined-parameter-free runtime-Eloss optimizer for energy-recycling duty-cycled systems. By leveraging a 3-level converter to recycle output-capacitance energy to the flying capacitor, it

Abstract This work presents a PV energy harvesting interface using a self-clamp CSCR SC converter. It reduces VCF stress without additional SC stages, enabling low-voltage CFs, 17.1mW/mm2 power density and 90% peak PCE.

UM Hetao IC Research Institute, Shenzhen, China 3 Tsinghua University, Beijing, China 1 *Equally Credited Authors (ECAs) Humanoid robots have high potential to replace human labors for various tasks in the near future [1

Tsinghua University, Beijing, China 1 2 *Equally Credited Authors (ECAs) The internet-of-things (IoT) and smart home devices, such as smart power meters and smart remote control, have great demand for high-efficiency, lo

Instituto Superior Tecnico/University of Lisboa, Lisbon, Portugal 1 2 *Equally Credited Authors (ECAs) Isolated DC-DC converters [1-8] with low electromagnetic interference (EMI) are crucial for system safety and reliabi

Instituto Superior Tecnico/University of Lisboa, Lisbon, Portugal 1 2 As Internet of Things (IoT) devices continue to shrink in size, the limited available system energy is becoming a major bottleneck. Even though the sy

traffic have driven optical modules to scale beyond 100Gb/s. This evolves aggressive bandwidth and SNDR frontiers for their ADCs in the receiver to cope with advanced modulations and oversampling rates. Time-interleaving

unpredictable and non-Gaussian error behaviors in the A/D conversion, which cannot be tolerated by applications such as lowbit-error-rate serial link receivers, radar, and instrumentation [1-5]. Time-domain (TD) ADCs [6-

Instituto Superior Tecnico/University of Lisboa, Lisbon, Portugal 1 The demand for medium-resolution GS/s ADCs is increasing in DSP-based wireline communication. Enhancing energy and area efficiency of the unit ADC is cr

Instituto Superior Tecnico/University of Lisboa, Lisbon, Portugal 1 2 In datacenters, direct conversion from a 12V input voltage VIN intermediate bus to point-of-load (PoL) is a common practice for powering computing chi

Instituto Superior Tecnico/University of Lisboa, Lisbon, Portugal 1 Ring-oscillator (RO)-based digital PLLs (DPLLs) are well-suited for multi-PLL-integrated SoC designs owing to their compactness and immunity to magnetic

Southern University of Science and Technology, Shenzhen, China 1 Figure 8.4.3 exhibits the overall structure of the proposed buck-boost converter including the power stage and control stage. All circuits are implemented

Institute of Microelectronics of the Chinese Academy of Sciences, Beijing, China 3 Instituto Superior Tecnico/University of Lisboa, Lisbon, Portugal 1 2 A ring oscillator (RO) based phase-locked loop (PLL) is a promising

University of Lisboa, Lisbon, Portugal 1 2 In an energy harvesting (EH) system for the internet of things (IoT), the input voltage VIN may vary within a wide range, e.g., from 0.3 to 1.8V from a solar cell, while the bat

Portable power banks with wireless charging are popular on the market, targeting a wireless charging to-go experience. However, the low input voltage from the battery and the large equivalent series resistance (ESR) of t

Instituto Superior Tecnico/University of Lisboa, Lisbon, Portugal 1 2 Direct RF sampling relieves the analog front-end design and delivers high system flexibility. In >10GS/s >10b ADCs, time-interleaving (TI) is inescapab

Instituto Superior Técnico/Universidade de Lisboa, Lisbon, Portugal 1 2 Magnetic resonance imaging (MRI), based on Nuclear Magnetic Resonance (NMR), is an indispensable tool for contemporary medicine. Moreover, the adven

Zhuhai UM Science & Technology Research Institute, Zhuhai, China 3 Instituto Superior Tecnico/University of Lisboa, Lisbon, Portugal 1 2 DC-DC converters are widely used in energy harvesting systems for maximum power poi

Instituto Superior Tecnico/University of Lisboa, Lisbon, Portugal 1 2 Startup time (ts) and energy (ES) of crystal oscillators (XO) determine the efficiency of ultra-low-power duty-cycled IoT radios. MHz-range XOs take a

Instituto Superior Tecnico/University of Lisboa, Lisbon, Portugal 1 2 By increasing the number of bits in each conversion cycle, the sampling rate of SAR ADCs can be considerably extended while maintaining superior energ

Instituto Superior Tecnico/University of Lisboa, Lisbon, Portugal 1 2 High power density, high efficiency, and high voltage conversion ratio (VCR) DC-DC converters are in great demand for portable devices and autonomous

Instituto Superior Tecnico/University of Lisboa, Lisbon, Portugal 1 2 The universal serial bus (USB) has become really universal in recent years, with power delivery and all kinds of data protocols connected through a si

Instituto Superior Tecnico/University of Lisboa, Lisbon, Portugal 1 2 Direct 12V-to-1V power delivery has become popular in datacenter applications. Multiple outputs regulated by switching regulators are favorable to red

Instituto Superior Tecnico/University of Lisboa, Lisbon, Portugal 1 2 Shaping the interstage gain error in two-step oversampling ADCs has demonstrated a decent error suppression with a variety of mechanisms. The intersta

Instituto Superior Tecnico/University of Lisboa, Lisbon, Portugal 1 2 High-speed pipelined ADCs rely on fast and accurate residue amplification which often necessitates calibration, thus suffering from potential converge

University of Lisboa, Lisbon, Portugal 1 3 Ultra-low-power short-range radios are the cornerstone of building a world with the Internet-of-Everything connectivity. To secure a high sensitivity at a sub-mW power budget, s

University of Lisboa, Lisbon, Portugal 1 2 An ultra-low-power always-on voice activity detector (VAD) is the key enabler of acoustic sensing in wearables. The VAD listens to the environment and wakes up the main system o

University of Lisboa, Lisbon, Portugal 1 2 The profile of portable and wearable devices keeps shrinking, demanding high current density power management integrated circuits. Switched-capacitor (SC) converters and buck co

University of Lisboa, Lisbon, Portugal 1 2 Automotive and industrial applications require a high-efficiency DC-DC converter to directly convert power from the 12V intermediate bus to a low-voltage point-of-load (PoL). Th

Instituto Superior Tecnico/University of Lisboa, Lisbon, Portugal 1 2 To suppress the gain error from dynamic-power amplifiers, recently presented approaches including gain-error shaping (GES) [1], digital amplifiers [2]

Instituto Superior Tecnico/University of Lisboa, Lisbon, Portugal 1 2 Since 2001 [1], LC VCOs have been demonstrating significant improvements of figureof-merit (FoM) and 1/f3 phase noise (PN) corner [2-5] by exploring c

Instituto Superior Tecnico/University of Lisboa, Lisbon, Portugal 1 2 The noise-shaping SAR (NS-SAR) hybrid architecture has shown its potential in achieving tens of MHz bandwidth (BW) together with high resolution [1-2]

University of Lisboa, Lisbon, Portugal 1 2 The ever-increasing data traffic in wireline communication systems has led to the demand for high-speed ADCs with a large input BW. Time-interleaved SAR ADCs with a large interl

Instituto Superior Tecnico/University of Lisboa, Lisbon, Portugal 1 2 The two-step SAR ADC is an energy-efficient architecture for high-resolution applications, which faces headroom challenges from the voltage-domain resi

Instituto Superior Tecnico/University of Lisboa, Lisbon, Portugal 1 2 VCO designs have evolved from single-resonant LC-tank VCOs to the recent multiresonant RLCM (Resistor-Inductor-Capacitor-Mutual-inductance) tank VCOs

Instituto Superior Tecnico/University of Lisboa, Lisbon, Portugal 1 2 Driven by great demands for high data transfer rates in mobile communications, ADCs require wide bandwidths with low noise density and power consumpti

Instituto Superior Tecnico/University of Lisboa, Lisbon, Portugal 1 2 Low-jitter phase-locked loops (PLLs) are critical building blocks in various systems, including wireless and wireline communications and ADCs. LC osci

Synopsys Macau, Macau, China 3 Instituto Superior Técnico/Universidade de Lisboa, Lisbon, Portugal 1 2 Wireless power transfer (WPT) via inductive coupling is a convenient way to charge power-starved portable/wearable de

Instituto Superior Tecnico/University of Lisboa, Lisbon, Portugal 1 2 This paper reports a regulation-free sub-0.5V crystal oscillator (XO) for Bluetooth Low-Energy (BLE) radios [1] that can be self-powered by harvesting

Instituto Superior Tecnico/University of Lisboa, Lisbon, Portugal 1 2 Most existing switched-capacitor (SC) DC-DC converters only offer a few voltage conversion ratios (VCRs), leading to significant efficiency fluctuatio

University of Electronic Science and Technology of China, Chengdu, China 3 Instituto Superior Tecnico/University of Lisboa, Lisbon, Portugal the number of registers. The fine loop contains an 8b SR, controlling eight 1×s

Instituto Superior Tecnico, Universidade de Lisboa, Portugal 1 2 For true mobility, wearable electronics should be self-powered by the environment. On-body thermoelectric (~50μW/cm2) is a maturing energy source but deliv

Synopsys Macau, Macau, China 3 Instituto Superior Tecnico, Universidade de Lisboa, Portugal 1 2 a And the MUX7 needs to conduct the same current as MP and MN, which will double the area and conduction loss. 2) Under the