ISSCC 2024
Session 27
Wireless
A 13.56MHz Wireless Power Transfer System with Hybrid Voltage-/Current-Mode Receiver and Global Digital-PWM Regulation Achieving 150% Transfer Range Extension and 72.3% End-to-End Efficiency
Wireless power transfer (WPT) shows extensive applications in sub-100mW batteryless biomedical implantable devices, where the robustness against variations in coupling and load conditions is still an unsolved and crucial
ISSCC 2024
Session 27
Wireless
A 90.8%-Efficiency SIMO Resonant Regulating Rectifier Generating 3 Outputs in a Half Cycle with Distributed Multi-Phase Control for Wirelessly-Powered Implantable Devices
Wirelessly-powered implantable medical devices (IMDs) have recently embraced a 1stage resonant regulating rectifier (R3) to enhance power conversion efficiency (PCE), replacing the prior 2-stage structure comprising an ac-
ISSCC 2024
Session 27
Wireless
A 6.78-MHz 79.5%-Peak-Efficiency Wireless Power Transfer System using a Wireless Mode-Recognition Technique and a Fully-On/off Class-D Power Amplifier
Wireless power transfer (WPT) systems are increasingly favored for applications such as implantable devices and portable electronics. In these systems, local voltage regulation on the receiver (RX) side ensures a well-re
ISSCC 2024
Session 27
Wireless
A Differential Hybrid Class-ED Power Amplifier with 27W Maximum Power and 82% Peak E2E Efficiency for Wireless Fast Charging To-Go
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
ISSCC 2024
Session 26
Medical & Bio
A 977μW Capacitive Touch Sensor with Noise-Immune Excitation Source and Direct Lock-In ADC Achieving 25.2pJ/step Energy Efficiency
China 1 2 Capacitive touch systems play a crucial role in user interfaces across many applications, such as mobile devices, desktop PCs, and interactive whiteboards [1-6]. In capacitive touch systems, various sources of
ISSCC 2024
Session 26
Medical & Bio
A 620pF-Compensated Dual-Mode Capacitance Readout IC for Sub-Display TSP with VRR Scan
become a prevalent use interaction method over the past decade, owing to their multi-touch capabilities and ease of use. There is a great demand for sub-display panels outside smartphones in emerging form-factor products
ISSCC 2024
Session 26
Medical & Bio
Noise Immunity in Capacitive Sensing: Single-Ended AFE Design with Common-Current Subtraction for Mutual- and Self-Capacitance Sensing in 390pF Load
flagship smartphones thanks to their thin form factor. However, the touch sensor integrated within the display faces several technical challenges arising from large parasitic capacitance of the touch sensor [1]. A potenti
ISSCC 2024
Session 26
Medical & Bio
A Fully Nonlinear Compact 10b Source Driver with Low-Voltage Gamma Slope DAC and Data/Phase Dependent Current Modulation Achieving 2411μm2/Channel for Mobile OLED Displays
C&Tech, Seoul, Korea 1 2 With the rapid development of display technology, there is a growing demand for highcolor-depth, low-power, cost-effective, and compact source-driver ICs (SD-IC), which convert digital data to an
ISSCC 2024
Session 26
Medical & Bio
A 600ch 10b Source-Driver IC with a Charge-Modulation DAC Achieving 1-Horizontal Time of 1.5μs Suitable for 240Hz-Frame-Rate Mobile Displays
with digital-to-analog conversion (DAC) and signal drive into pixels, drastically impact image quality in displays. As the demand for higher spatial resolution to enhance visual realism grows, even in mobile displays, a
ISSCC 2024
Session 25
Other
Toward Exponential Growth of Therapeutic Neurotechnology
Motif Neurotech, Houston, TX 1 2 Bioelectronic devices that manipulate and record human neural activity could help patients suffering from debilitating health conditions not effectively treated by drugs. Here we discuss
ISSCC 2024
Session 25
Other
Extreme Wave-Based Metastructures Nader Engheta
opportunities for unprecedented control of electromagnetic and optical signals with numerous applications. In order to sculpt and manipulate waves to achieve exciting functionalities, we need materials. Judiciously engin
ISSCC 2024
Session 25
Other
Short-Reach Silicon Photonic Interconnects with Quantum Dot Mode Locked Laser Comb Sources
Alice Mo1, Jahyun Koo1, David McCarthy1, Noah Pestana2, Skylar Deckoff-Jones2, Christopher Poulton2, Michael Frankel3, Jock Bovington4, Luke Theogarajan1, John Bowers1 University of California, Santa Barbara, CA Analog P
ISSCC 2024
Session 23
Other
A 7.6mW IR-UWB Receiver Achieving -13dBm Blocker Resilience with a Linear RF Front-End
Gururaja Kasanadi Ramachandra, Yunus Baykal, Mario Konijnenburg, Yao-Hong Liu, Christian Bachmann, Peng Zhang imec, Eindhoven, The Netherlands 802.15.4a/z enabled IR-UWB TRXs [1-4] are being widely deployed into secured
ISSCC 2024
Session 23
Other
A 167μW 71.7dB-SFDR 2.4GHz BLE Receiver Using a Passive
Haijun Shao1, Rui P. Martins1,2, Pui-In Mak1 University of Macau, Macau, China University of Lisboa, Lisboa, Portugal 1 2 The Bluetooth Low-Energy (BLE) receivers evolved from their traditional active RF frontends [1,2]
ISSCC 2024
Session 23
Other
A Passive Crystal-Less Wi-Fi-to-BLE Tag Demonstrating Battery-Free FDD Communication with Smartphones
of Things (IoT) applications become increasingly widespread, wireless connectivity presents stringent requirements on low power, low cost, and compatibility with widely deployed commodity hardware such as BLE/Wi-Fi-embed
ISSCC 2024
Session 23
Other
A 1mm2 Software-Defined Dual-Mode Bluetooth Transceiver with 10dBm Maximum TX Power and -98.2dBm Sensitivity 2.96mW RX Power at 1Mb/s
Alexandre Vouilloz, Ernesto Pérez Serna, Anjana Dissanayake, Pascal Persechini, Vladimir Kopta, Erwan Le Roux, Francesco Chicco, Stefano Cillo, Nicola Gerber, Cédric Barbelenet, Fabio Epifano, Paulo A. Dal Fabbro, Nicola
ISSCC 2024
Session 23
Other
A 44μW IoT Tag Enabling 1μs Synchronization Accuracy and OFDMA Concurrent Communication with Software-Defined Modulation
2 Backscatter tags have proven advantageous in reducing the power consumption of ultralow upload data-rate IoT devices from milliwatts to tens of microwatts [1,2]. Previous backscatter ICs generally employ codeword trans
ISSCC 2024
Session 22
Analog Circuits
A 42GS/s 7b 16nm Massively Time-Interleaved Slope-ADC
resolution of 6 to 8 bits and a sampling speed of several tens of GHz are often required [1–5]. To achieve these extremely high speeds, time-interleaved (TI) ADCs with tens of parallel high-speed channels are commonly us
ISSCC 2024
Session 22
Analog Circuits
A 4.8GS/s 7-ENoB Time-Interleaved SAR ADC with Dither-Based Background Timing-Skew Calibration and Bit-Distribution-Based Background Ping-Pong Comparator Offset Calibration
High-speed (>GS/s) medium-resolution (6-8b) ADCs are in high demand for wideband applications. The time-interleaved (TI) SAR ADC is widely used for its superior power efficiency. However, TI ADCs suffer from timing-skew m
ISSCC 2024
Session 22
Analog Circuits
A 76mW 40GS/s 7b Time-Interleaved Hybrid Voltage/TimeDomain ADC with Common-Mode Input Tracking
Hillsboro, OR 1 2 Fast, low-power ADCs with ~5-6 effective bits of resolution are a key element of 50+Gb/s links, which often use DSP-based equalization to compensate for high channel loss and high-order modulation schem
ISSCC 2024
Session 22
Analog Circuits
A 700MHz-BW –164dBFS/Hz-Small-Signal-NSD 703mW Continuous-Time Pipelined ADC with On-Chip Digital Reconstruction Achieving <-85dBFS HD3 using Digital Cancellation of DAC Errors The 2nd stage’s (Fig. 22.2.2) relaxed NSD allows a low-area RC lattice delay and a PMOSonly current-steering sub-DAC without negative supplies. The flash sub-ADC is identical to the one in the 1st stage, while the interstage filter is an impedance-scaled version of its 1st-stage counterpart. The 3rd stage is a VCO ADC with a V-to-I converter and a phaseinterpolated ring oscillator with over-range and nonlinearity corrections [3].
Qingnan Yu3, Zhao Li1, Zeynep Lulec1, Konstantinos Vasilakopoulos1, Prawal Shrestha2, Donald Paterson4, Raviteja Theertham1, Aseer Chowdhury5 The DRF (Fig. 22.2.1) combines stage outputs such that sub-ADC quantization er
ISSCC 2024
Session 22
Analog Circuits
A 12GS/s 12b 4× Time-Interleaved Pipelined ADC with Comprehensive Calibration of TI Errors and Linearized Input Buffer
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
ISSCC 2024
Session 21
Other
A -106.3dB THD+N Feedback-After-LC Class-D Audio Amplifier Employing Current Feedback to Enable 530kHz LC-Filter Cut-Off Frequency
Goodix Technology, Nijmegen, The Netherlands 1 2 Class-D amplifiers (CDAs) are used in various audio applications thanks to their high power efficiency. However, they produce high-frequency switching energy that poses EMI
ISSCC 2024
Session 21
Other
A 121.7dB DR and -109.0dB THD+N Filterless Digital-Input Class-D Amplifier with an HV Multibit IDAC Using Tri-level Output and Employing a Transition-Rate-Balanced Bidirectional RTDEM Scheme
Digital-input Class-D amplifiers (CDAs) are widely used in audio applications and offer high power efficiency and high levels of integration. As human ears have a dynamic range (DR) of ~130dB, high DR is preferred in high-
ISSCC 2024
Session 20
AI / ML
Space-Mate: A 303.5mW Real-Time Sparse Mixture-ofExperts-Based NeRF-SLAM Processor for Mobile Spatial Computing
Recently, spatial computing has become popular in mobile devices, such as autonomous robots and augmented reality (AR) glasses [1], and it enables cyber-physical interaction through accurate user position and 3D geometri
ISSCC 2024
Session 20
AI / ML
NeuGPU: A 18.5mJ/Iter Neural-Graphics Processing Unit for Instant-Modeling and Real-Time Rendering with SegmentedHashing Architecture
Cambridge, MA 1 2 With the rise of the metaverse, there’s a growing demand for 3D modeling and rendering technologies that can bring real-world objects/scenes into the augmented/virtual world on mobile devices. Recently,
ISSCC 2024
Session 20
AI / ML
LSPU: A Fully Integrated Real-Time LiDAR-SLAM SoC with Point-Neural-Network Segmentation and Multi-Level kNN Acceleration
mobile robots require Simultaneous Localization and Mapping (SLAM) for autonomous driving and seamless interaction with the surrounding objects. Previous RGB-based visual SLAM processors [1-2] cannot be deployed for auto
ISSCC 2024
Session 20
AI / ML
C-Transformer: A 2.6-18.1μJ/Token Homogeneous DNN-Transformer/Spiking-Transformer Processor with Big-Little Network and Implicit Weight Generation for Large Language Models
20.5.1, are widely used, and even on-device LLM systems with real-time responses are anticipated
ISSCC 2024
Session 20
AI / ML
A 28nm Physics Computing Unit Supporting Emerging Physics-Informed Neural Network and Finite Element Method for Real-Time Scientific Computing on Edge Devices
The demand for real-time computing on edge devices from emerging applications, e.g. AI, has exploded in recent years. Lately, physics-based scientific computing has also drawn significant interests driven by the growth of
ISSCC 2024
Session 20
AI / ML
A 23.9TOPS/W @ 0.8V, 130TOPS AI Accelerator with 16× Performance-Accelerable Pruning in 14nm Heterogeneous Embedded MPU for Real-Time Robot Applications
expectations for the advancement of human-cooperative robots. In such robots, advanced environmental recognition (mainly AI based), planning and control (normally non-AI algorithms) have to be processed simultaneously in
ISSCC 2024
Session 20
AI / ML
A 28nm 74.34TFLOPS/W BF16 Heterogenous CIM-Based Accelerator Exploiting Denoising-Similarity for Diffusion Models
China 3 Shanghai AI Lab, Shanghai, China 1 2 Diffusion models (DMs) have emerged as a powerful category of generative models with record-breaking performance in image synthesis [1]. A noisy image created from pure Gaussi
ISSCC 2024
Session 20
AI / ML
NVE: A 3nm 23.2TOPS/W 12b-Digital-CIM-Based Neural Engine for High-Resolution Visual-Quality Enhancement on Smart Devices
Pei-Kuei Tsung1, En-Jui Chang1, Jenwei Liang1, Shu-Hsin Chang1, Chung-Lun Huang1, You-Yu Nian1, Zhe Wan2, Sushil Kumar2, Cheng-Xin Xue1, Gajanan Jedhe2, Hidehiro Fujiwara3, Haruki Mori3, Chih-Wei Chen1, Po-Hua Huang1, Ch
ISSCC 2024
Session 2
Digital Processors
BayesBB: A 9.6Gbps 1.61ms Configurable All-MessagePassing Baseband-Accelerator for B5G/6G Cell-Free Massive-MIMO in 40nm CMOS
7.4 illustrates the implementation details of the MIMO-BP detector, utilizing a fully unfolded architecture with 5 iterations. The Gaussian approximation of interference is first measured to support the posterior message
ISSCC 2024
Session 2
Digital Processors
A 131mW 6.4Gbps 256×32 Multi-User MIMO OTFS Detector for Next-Gen Communication Systems unit computes the soft information by piece-wise linear functions. The channel memory bank includes one channel-sample memory and one channel-difference memory for storing the encoded Gram matrix coefficients.
The mean values are computed along the diagonal band of the submatrix in a block-byblock manner. It is noted that the mean values for the lower-left and upper-right blocks can be derived from the symbols updated in the p
ISSCC 2024
Session 2
Digital Processors
A 28nm Physical-Based Ray-Tracing Rendering Processor for Photorealistic Augmented Reality with Inverse Rendering and Background Clustering for Mobile Devices
University of Minnesota, Minneapolis, MN includes a sub-group of user-defined objects inside. After the BBOX Intersection Evaluator (BBIE) detects intersection with TBBOX, the Triangle Mesh Intersection Evaluator (TIE) co
ISSCC 2024
Session 2
Digital Processors
ATOMUS: A 5nm 32TFLOPS/128TOPS ML System-on-Chip for Latency Critical Applications
Yoonho Boo, Jaewan Bae, Minjae Kwon, Karim Charfi, Jinseok Kim, Hongyun Kim, Myeongbo Shim, Changsoo Ha, Wongyu Shin, Jae-Sung Yoon, Miock Chi, Byungjae Lee, Sungpill Choi, Donghan Kim, Jeongseok Woo, Seokju Yoon, Hyunje
ISSCC 2024
Session 2
Digital Processors
Emerald Rapids: 5th-Generation Intel® Xeon® Scalable Processors
Rich Gammack1, Chinmay P. Joshi3, Goran Zelic1, Kambiz Munshi1, Min Huang4, Charles R. Morganti2, Sireesha Kandula1, Arijit Biswas1 Intel, Hudson, MA 2 Intel, Fort Collins, CO 3 Intel, Hillsboro, OR 4 Intel, Santa Clara,
ISSCC 2024
Session 2
Digital Processors
“Zen 4c”: The AMD 5nm Area-Optimized x86-64 Microprocessor Core
3.84mm2. Side-by-side images shown in Fig. 2.2.3. To fit two CCXs onto one chiplet die, the L3 cache in one CCX was reduced from 32MB to 16MB. The extra frequency margin also allowed pairs of L3 data macros to be combined
ISSCC 2024
Session 2
Digital Processors
A 4nm 3.4GHz Tri-Gear Fully Out-of-Order ARMv9.2 CPU Subsystem-Based 5G Mobile SoC
Gordon Gammie1, Hugh Mair2, Jen-Hang Yang3, Hao-Hsiang Yu3, Shun-Chieh Chang3, Cheng-Hao Yang3, Li-An Huang3, Kumar Ramanathan1, Ramesh Halli4, Efron Ho1, Ta-Wen Hung3, Sung S.-Y. Hsueh3, LiangChe Li3, Achuta Thippana1,
ISSCC 2024
Session 19
RF & Wireless
A 13.7-to-41.5GHz 214.1dBc/Hz FoMT Quad-Core Quad-Mode VCO Using an Oscillation-Mode-Splitting Technique
Voltage-controlled-oscillators (VCOs) with simultaneous low phase noise and wide frequency tuning range (FTR) spanning from tens GHz to millimeter-wave (mm-wave) bands are required for various standardized applications,
ISSCC 2024
Session 19
RF & Wireless
A 0.07mm2 20-to-23.8GHz 8-phase Oscillator Incorporating Magnetic + Dual-Injection Coupling Achieving 189.2dBc/Hz FoM@10MHz and 200.7dBc/Hz FoMA in 65nm CMOS
low phase noise (PN) and low phase errors are the cornerstone of high-data-rate wireless transceivers, especially with the increasingly more complex modulation schemes. Frequency division, polyphase filters, and ring osci
ISSCC 2024
Session 19
RF & Wireless
An 8.9-to-21.9GHz Single-Core Oscillator with Reconfigurable Class-F-1 and Enhanced-Colpitts Dual-Mode Operation Achieving 209dBc/Hz FoMT
Emerging needs for incorporating multistandard or software-defined-radio transceivers onto a single chip necessitate oscillator signals with an octave coverage for enabling seamless full-range frequency synthesis. Althoug
ISSCC 2024
Session 19
RF & Wireless
A 7.5GHz Subharmonic Injection-Locked Clock Multiplier with
multipliers, as it can lower the phase noise of a VCO beyond what can be achieved by the PLL loop bandwidth. The amount of phase-noise reduction depends on the injection strength and reaches a maximum when the clock edge
ISSCC 2024
Session 18
RF & Wireless
A 200GS/s 8b 20fJ/c-s Receiver with >60GHz AFE Bandwidth for 800Gb/s Optical Coherent Communications in 5nm FinFET
C. Nani4, D. Albano4, F. Ahmad1, F. Solis2, G. Minoia4, G. Hatcher1, M. Bachu3, M. Garampazzi4, M. Hassanpourghadi1, N. Fan1, P. Prabha1, S. Fan3, S. Ho5, T. Dusatko5, T. Wu1, W. Elsharkasy1, Z. Sun6, S. Jantzi1, L. Tse3
ISSCC 2024
Session 18
RF & Wireless
An 8b 160GS/s 57GHz Bandwidth Time-Interleaved DAC and Driver-Based Transmitter with Adaptive Calibration for 800Gb/s Coherent Optical Applications in 5nm
eq (1) F. Ahmad1, A. Mellati1, A. Fernandez2, A. Iyer 3, A. Fan1, B. Reyes 2, C. Abidin 1, C. Nani 4, D. Albano 4, F. Solis 2, G. Minoia 4, G. Hatcher 1, H. Carrer 2, K. Kota 1, L. Wang 1, M. Bachu 3, M. Garampazzi 4, M.
ISSCC 2024
Session 18
RF & Wireless
A 4×64Gb/s NRZ 1.3pJ/b Co-Packaged and Fiber-Terminated 4-Ch VCSEL-Based Optical Transmitter
from limited reach due to channel loss. Multi-mode vertical-cavity surface-emitting laser (VCSEL)-based optical interconnects can enable high-bandwidth connectivity while extending the reach to tens of meters [1-3]. Plug
ISSCC 2024
Session 18
RF & Wireless
A 600Gb/s DP-QAM64 Coherent Optical Transceiver Frontend with 4x105GS/s 8b ADC/DAC in 16nm CMOS
clock channel of 1.2mm. The transmission line effect of the clock channel is carefully modeled to make sure the ADC clock has low jitter and low skew with sharp rail-to-rail edges. Guansheng Li1, Adesh Garg1, Tim He1, Ul
ISSCC 2024
Session 17
Other
V 988nW Time-Domain Audio Feature Extraction for Keyword Spotting Using Injection-Locked Oscillators
Always-on, voice-activated tinyML systems, like those implementing keyword spotting (KWS), demand low power consumption and a small footprint. In certain instances, subV energy-harvesting sources restrict the available s
ISSCC 2024
Session 17
Other
Droplet Microfluidics Co-Designed with Real-Time CMOS Luminescence Sensing and Impedance Spectroscopy of 4nL Droplets at a 67mm/s Velocity
cell-based biosensors (CBBs)
ISSCC 2024
Session 17
Other
Fully Integrated CMOS Ferrofluidic Biomolecular Processing
Dongwon Lee*1, Kyung-sik Choi*1, Fuze Jiang*1, Hangxing Liu1, Doohwan Jung2, Ying Kong1, Marco Saif1, Zhikai Huang1, Jing Wang1, Hua Wang1 ETH Zürich, Zurich, Switzerland Qualcomm, Santa Clara, CA *Equally Credited Autho