技术领域

Analog Circuits

169 篇相关论文 (2008–2026)

ISSCC 2026 Session 4 Analog Circuits
An Integrated Voltage and Current Reference Together Achieving 5.7 and 9.1ppm/°C from -40 to 125°C
Lele Fang, Yan Zhu, Rui P. Martins, Chi-Hang Chan
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
University of Macau, Macau, China
ISSCC 2026 Session 4 Analog Circuits
A 1ppm/°C and ±0.066% 3σ Accuracy Bandgap Reference with Temperature-Adaptive PTAT Scaling
Jiaqing Rui1, Liangjian Lyu1, Yuting Wan1, Kexin Shan1, Wenxian Gu1, C.-J. Richard Shi2, Xing Wu1
Abstract This paper presents a process-independent, curvature-compensated bandgap reference. By introducing a temperature-adaptive duty-cycled resistor to scale the PTAT voltage, the design effectively compensates for CT
East China Normal University, Shanghai, China, 2University of Washingt
ISSCC 2026 Session 4 Analog Circuits
A 2.1-to-3.7ppm/°C Bandgap Voltage Reference with a Current-Domain TC Compensation and ±0.06% Inaccuracy from -40°C to 125°C in 130nm CMOS
Zhong Tang1, Sining Pan2, Xiaopeng Yu3, Nick Nianxiong Tan4, Zhangming Zhu1
Abstract This paper presents a CMOS bandgap reference (BGR) with a current-domain high-order TC compensation by using a capacitively-biased-diode-based super-PTAT current bias. It achieves a TC of 2.1 to 7.1ppm/°C from -
Xidian University, Xi’an, China, 2Tsinghua University, Beijing, China,
ISSCC 2025 Session 4 Analog Circuits
A 0.4µW/MHz Reference-Replication-Based RC Oscillator with Path-Delay and Comparator-Offset Cancellation Achieving 9.83ppm/°C from -40 to 125°C of the capacitor charging, the relationship between the period with VOS and Td can be calculated. Compared with the conventional structure, the proposed one has significantly improved robustness, as shown in Fig. 4.5.1 (top right). The circuit implementation and timing diagram are detailed in Fig. 4.5.3. It is mainly
Yueduo Liu1, Zihao Zhu1, Xinyu Yang1, Rongxin Bao1, Zehao Zhang2, composed of a VREF generator, an RC branch, a pulse ge
Hongshuai Zhang1, Jiaxin Liu1, Zheng Wang1, Mingkang Zhang3, Na Yan4, Jun Yin2, counter, and the comparator. The dynamic switches in the VREF generator are triggered by the output signal Φ. When Φ=1, VREF is generated by
ISSCC 2025 Session 4 Analog Circuits
A 0.36nW/0.9V 32kHz Crystal Oscillator Using Analog Regulation for Cross-Current Avoidance
Tobias Chlan, Markus Dietl, Ralf Brederlow
Timekeeping with limited energy plays a critical role in many battery-driven Internet-ofThings (IoT) applications. For this purpose, 32kHz oscillators [1-9] with high accuracy and ultra-low-power (ULP) consumption are ne
Technical University Munich, Munich, Germany
ISSCC 2025 Session 4 Analog Circuits
A 1.8-to-3.0GHz Fully Integrated All-In-One CMOS Frequency Management Module Achieving -47/+42ppm Inaccuracy from -40 to 95°C and -150/+70ppm After Accelerated Aging
Runtao Huo1, Tong Zhang1, Weihao Jie1, Yanling Zheng1, Deyong Li1, Li Gao2,
University of California, San Diego, CA 1 Accurate and stable frequency-management modules (FMMs) are a critical component in wired/wireless communication systems since they determine key metrics such as data rate and bi
Yang Zhao1, Honglan Jiang1, Yongfu Li1, Patrick Mercier3, Hui Wang1 Sh
ISSCC 2025 Session 4 Analog Circuits
A 12.8GS/s Sub-Sampling ADC Front-End with 38GHz Input Bandwidth and >39dB SNDR for 1 to 32GHz in 22nm FDSOI
Josef Heel1, Harijot Singh Bindra1, Simon Louwsma2, Alessandro Dezzani3, Bram Nauta1
with the crowded wireless spectrum results in a trend towards millimeter-wave frequencies. RF-sampling architectures offer advantages in terms of flexibility, simplicity and robustness. However, presenting the ADC direct
University of Twente, Enschede, The Netherlands 2 Teledyne DALSA Semic
ISSCC 2025 Session 3 Analog Circuits
A CMOS Operational Amplifier Achieving ±5.8µV 3σ Offset and ±88nV/°C 3σ Offset Drift Using an On-Chip Heater-Based Self-Trimming Technique
In step three, the heater heats up M1,2 and the constant gm biasing circuit together to Thigh, resulting in an offset dr
important that the corresponding D0IDAC1vos code is used to ensure the opamp offset at Troom remains zero. Aodong Zhang1, Mingtao Zhan1, Mengying Chen2, Yi Zhong1, Lu Jie1, Nan Sun1, Qinwen Fan2 The trimming accuracy is
ISSCC 2025 Session 3 Analog Circuits
A Passive Switched-Capacitor-Based Multimode Amplifier with a Logarithmic Conformity Error of 0.75% from -25 to 200°C
Hendrik Siemssen1, Rochus Nowosielski2, Holger Borchardt2, Jan Mueller2, Bernhard Wicht1
requires integrated electronics to endure harsh environments with temperatures up to 200°C. Acoustic sensors (e.g., piezoelectric) detect environmental composition, as illustrated in Fig. 3.3.1 (top). Due to the natural
Leibniz University Hannover, Hannover, Germany Baker Hughes, Celle, Ge
ISSCC 2025 Session 3 Analog Circuits
A 36V Current-Balancing Instrumentation Amplifier with ±24V
Input Range, 5.6MHz BW, and 140dB CMRR at All Gain Settings
amplifiers (HV-IAs) are employed to process millivolt-level signals from sensors and standardized 4-to-20mA current signals from transmitters [1,2]. The latter are converted into voltage signals up to 10V via a 250Ω or 5
Shen Ye, Minge Jiang, Jiahao Wang, Shiqi Zhang, Peng Cao, Zhiliang Hon
ISSCC 2024 Session 3 Analog Circuits
A 1.2V High-Voltage-Tolerant Bootstrapped Analog Sampler in 12-bit SAR ADC Using 3nm GAA’s 0.7V Thin-Gate-Oxide Transistor
Sangheon Lee, Jinwoo Park, Junsang Park, Sangkyu Lee, Jungho Lee,
process utilizing the Multi-Bridge-Channel-FET (MBCFET) with nanosheet technology enhances performance, power efficiency, and area (PPA) benefits by large effective channel width and enhanced design flexibility compared to
Youngjae Cho, Michael Choi, Jongshin Shin Samsung Electronics, Hwaseon
ISSCC 2024 Session 3 Analog Circuits
A 0.65V 900μm2 BEoL RC-Based Temperature Sensor with ±1°C Inaccuracy from -25°C to 125°C
Bei-Shing Lien*, Szu Lin Liu*, Wei-Lin Lai, Yi-Chen Lu, Yung-Chow Peng, Kenny Cheng-Hsiang Hsieh
capacity and prevent chip overheating, it is essential to minimize the gap between on-die thermal measurements and the actual temperature at hotspots. This relies primarily on the inherent accuracy of the temperature sen
TSMC, Hsinchu, Taiwan *Equally Credited Authors (ECAs) To maintain hig
ISSCC 2024 Session 3 Analog Circuits
A β-Compensated NPN-Based Temperature Sensor with ±0.1°C (3σ) Inaccuracy from -55°C to 125°C and a 200fJ∙K2 Resolution FoM
Nandor G. Toth, Kofi A. A. Makinwa
The two key performance metrics of BJT-based temperature sensors are their accuracy and energy efficiency. Although NPN-based temperature sensors achieve the best energy efficiency [1], they have not been able to combine t
Delft University of Technology, Delft, The Netherlands
ISSCC 2024 Session 3 Analog Circuits
An Amplifier-Less CMOS Potentiostat IC Consuming 3.7nW Power all over 129.5dB Dynamic Range for Electrochemical Biosensing
Muhammad Abrar Akram1, Aida Aberra1, Soon-Jae Kweon2, Sohmyung Ha1,3
The Catholic University of Korea, Bucheon, Korea 3 New York University, New York, NY 1 2 Ultra-low-power potentiostats, which perform high-precision current measurements for electrochemical biosensing, hold paramount imp
New York University Abu Dhabi, Abu Dhabi, United Arab Emirates
ISSCC 2024 Session 3 Analog Circuits
A 4mW 45pT/√Hz Magnetoimpedance-Based ΔΣ Magnetometer with Background Gain Calibration and Short-Time CDS Techniques
Ippei Akita1, Shunichi Tatematsu2
Aichi Steel, Tokai, Japan 1 2 Low-noise, low-power digital-output magnetometers are essential for various applications, including security-gate systems, non-destructive inspections, and geomagnetic and biomagnetic measur
AIST, Tsukuba, Japan
ISSCC 2024 Session 3 Analog Circuits
A 14b 98Hz-to-5.9kHz 1.7-to-50.8μW BW/Power Scalable Sensor Interface with a Dynamic Bandgap Reference and an Untrimmed Gain Error of ±0.26% from -40°C to 125°C
Zhong Tang*1, Yuyan Liu*1, Pengpeng Chen1, Haining Wang1, Xiaopeng Yu2,
Kofi A. A. Makinwa3, Nick Nianxiong Tan1 Vango Technologies, Hangzhou, China Zhejiang University, Hangzhou, China 3 Delft University of Technology, Delft, The Netherlands *Equally Credited Authors (ECAS) 1 2 To accommodat
ISSCC 2024 Session 3 Analog Circuits
A 0.5V 6.14µW Trimming-Free Single-XO Dual-Output
Frequency Reference with [5.1nJ, 120µs] XO Startup and
[8.1nJ, 200µs] Successive-Approximation-Based RTC Calibration Rui Luo1, Ka-Meng Lei1, Rui P. Martins1,2, Pui-In Mak1 University of Macau, Macau, China, Instituto Superior Técnico/Universidade de Lisboa, Lisbon, Portugal
ISSCC 2024 Session 3 Analog Circuits
A 0.028mm2 32MHz RC Frequency Reference in 0.18μm CMOS with ±900ppm Inaccuracy from -40°C to 125°C and ±1600ppm Inaccuracy After Accelerated Aging
Sining Pan1, Yihang Cheng1, Guohua Wu1, Zhihua Wang1, Kofi A. A. Makinwa2, Huaqiang Wu1
small chip area [1-6], and so can potentially replace bulky crystal- or MEMS-based frequency references in cost-sensitive IoT applications. However, due to the large and nonlinear temperature dependence of on-chip resist
Tsinghua University, Beijing, China 2 Delft University of Technology,
ISSCC 2024 Session 3 Analog Circuits
A 0.69/0.58-PEF 1.6nW/24nW Capacitively Coupled Chopper Instrumentation Amplifier with an Input-Boosted First Stage in 22nm/180nm CMOS
Xinhang Xu*1, Siyuan Ye*1, Yaohui Luan1, Jihang Gao1, Jie Li1, Jiajia Cui1,
Information Technology of Peking University, Hangzhou, China *Equally Credited Authors (ECAs) 1 2 The front-end amplifier typically determines the noise level of a sensor system. Therefore, a highly power-efficient amplifie
Hao Zhang2, Ru Huang1, Linxiao Shen1, Le Ye1,3 Peking University, Beij
ISSCC 2024 Session 3 Analog Circuits
A PVT-Insensitive Sub-Ranging Current Reference Achieving 11.4ppm/°C from -20°C to 125°C
Pangi Park1, Junghyup Lee2, SeongHwan Cho1
Daegu Gyeongbuk Institute of Science and Technology, Daegu, Korea 1 2 Improving the temperature stability of the reference current (IREF) is essential for the reliable operation of precision electronics for various appli
Korea Advanced Institute of Science and Technology, Daejeon, Korea
ISSCC 2024 Session 22 Analog Circuits
A 42GS/s 7b 16nm Massively Time-Interleaved Slope-ADC
Ewout Martens1, Adam Cooman1, Pratap Renukaswamy1, Shun Nagata2,
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
Sehoon Park1, Jorge Lagos1, Nereo Markulic1, Jan Craninckx1 1 2 imec,
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
Yunsong Tao, Mingyang Gu, Baoyong Chi, Yi Zhong, Lu Jie, Nan Sun
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
Tsinghua University, Beijing, China
ISSCC 2024 Session 22 Analog Circuits
A 76mW 40GS/s 7b Time-Interleaved Hybrid Voltage/TimeDomain ADC with Common-Mode Input Tracking
Amy Whitcombe1, Somnath Kundu2,4, Hariprasad Chandrakumar2,
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
Abhishek Agrawal2, Thomas Brown2, Steven Callender3, Brent Carlton2, S
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].
Sharvil Patil1, Asha Ganesan1, Hajime Shibata1, Victor Kozlov1, Gerry Taylor2,
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
Yuefeng Cao1, Minglei Zhang1, Yan Zhu1, R. P. Martins1,2, Chi-Hang Chan1
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
University of Macau, Macau, China
ISSCC 2023 Session 23 Analog Circuits
A BJT-Based Temperature Sensor with ±0.1°C (3σ) Inaccuracy from -55°C to 125°C and a 0.85pJ∙K2 Resolution FoM Using Continuous-Time Readout
Nandor G. Toth*1, Zhong Tang1, Teruki Someya1,3, Sining Pan*1,2, Kofi A. A. Makinwa1
temperature sensors are widely used due to their high accuracy over a wide temperature range with a low-cost 1-point trim. Although resistor-based sensors can achieve better energy efficiency, they typically require a 2-
Delft University of Technology, Delft, The Netherlands Tsinghua Univer
ISSCC 2023 Session 23 Analog Circuits
A 2.98pJ/conversion 0.0023mm2 Dynamic Temperature Sensor with Fully On-Chip Corrections
Yuting Shen, Hanyue Li, Eugenio Cantatore, Pieter Harpe
Nowadays, many battery-operated SoCs for IoT and environmental monitoring applications are equipped with temperature sensors. In these miniaturized systems, power and area are two critical concerns. One challenge for tem
Eindhoven University of Technology, Eindhoven, The Netherlands
ISSCC 2023 Session 23 Analog Circuits
A Sub-1V 810nW Capacitively-Biased BJT-Based Temperature Sensor with an Inaccuracy of ±0.15°C (3σ) from -55°C to 125°C
Zhong Tang1, Sining Pan1,2, Kofi A. A. Makinwa1
Tsinghua University, Beijing, China 1 2 BJT-based temperature sensors are widely used because they can achieve excellent accuracy after 1-point calibration. However, they typically dissipate µWs of power and require supp
Delft University of Technology, Delft, The Netherlands
ISSCC 2023 Session 23 Analog Circuits
A Closed-Loop 12bit CMOS-Integrated Stress Sensor System with 4bit Adjustable Sensitivity from 178 to 11kPa/LSB at up to 22.5kS/s and 5bit Dynamic Range Adjustment.
Kim Allinger1, Matthias Kuhl2
University of Freiburg - IMTEK, Freiburg, Germany 1 2 The increasing popularity of integrated stress sensors due to emerging fields such as Internet-of-Things (IoT), robotics and predictive maintenance led to various imp
Hamburg University of Technology, Hamburg, Germany
ISSCC 2023 Session 23 Analog Circuits
A 51A Hybrid Magnetic Current Sensor with a Dual Differential DC Servo Loop and 43mArms Resolution in a 5MHz Bandwidth
Amirhossein Jouyaeian1, Qinwen Fan1, Mario Motz2, Udo Ausserlechner2, Kofi A. A. Makinwa1
Each quadrature component is chopper demodulated and then integrated via Rs3 (=10M&) and Cfsp (=5pF) to generate a correction signal that is upmodulated and fed back to A4 via an auxiliary input stage. The offset of A4 i
Delft University of Technology, Delft, The Netherlands Infineon Techno
ISSCC 2023 Session 23 Analog Circuits
A 40A Shunt-Based Current Sensor with ±0.2% Gain Error from -40°C to 125°C and Self-Calibration
Zhong Tang1, Nandor G. Toth1, Roger Zamparette1, Tomohiro Nezuka2,
Yoshikazu Furuta2, Kofi A. A. Makinwa1 Delft University of Technology, Delft, The Netherlands MIRISE Technologies, Aichi, Japan 1 2 Low-cost metal (e.g., PCB trace) shunts can be used to make accurate current sensors (<1
ISSCC 2023 Session 23 Analog Circuits
A 7.9fJ/Conversion-Step and 37.12aFrms Pipelined-SAR Capacitance-to-Digital Converter with kT/C Noise Cancellation and Incomplete-Settling-Based Correlated Level Shifting
Jihang Gao1, Linxiao Shen1, Heyi Li1, Siyuan Ye1, Jie Li1, Xinhang Xu1, Jiajia Cui1,
sensor applications, capacitive sensors are widely used to convert various capacitances into digital signals, and the demand for power-efficient high-resolution capacitance-to-digital converters (CDCs) is on the rise. In
Yunhung Gao1, Ru Huang1, Le Ye1,2 Peking University, Beijing, China Ad
ISSCC 2021 Session 5 Analog Circuits
A 5V Dynamic Class-C Paralleled Single-Stage Amplifier with Near-Zero Dead-Zone Control and Current-Redistributive Rail-to-Rail Gm-Boosting Technique
Seok-Tae Koh, Ji-Hun Lee, Gyeong-Gu Kang, Hyunki Han, Hyun-Sik Kim
One of the most key analog blocks in VLSI is probably the buffer amplifier dedicated to driving large off-chip loads. However, achieving fast settling-time and high output current drivability over a wide input voltage ra
KAIST, Daejeon, Korea
ISSCC 2021 Session 5 Analog Circuits
A MEMS Coriolis Mass Flow Sensor with 300µg/h/√Hz Resolution and ±0.8mg/h Zero Stability
Arthur C. de Oliveira1, Jarno Groenesteijn2, Remco J. Wiegerink3, Kofi A. A. Makinwa1
in the pharmaceutical, food, and semiconductor industries to measure small amounts (<1gram/hour) of liquids and gases. MEMS thermal flow sensors currently achieve state-of-the-art performance in terms of resolution, size
Delft University of Technology, Delft, The Netherlands Bronkhorst BV,
ISSCC 2021 Session 5 Analog Circuits
A 770 kS/s Duty-Cycled Integrated-Fluxgate Magnetometer for Contactless Current Sensing
Preetinder Garcha1,2, Viola Schaffer3, Baher Haroun1, Srinath Ramaswamy1,
Instruments, Freising, Germany 4 Kilby Labs, Texas Instruments, Santa Clara, CA 1 2 Electric vehicle battery chargers, solar-panel inverters, industrial power monitoring, and many other high voltage applications rely on
Jim Wieser4, Jeffrey Lang2, Anantha Chandrakasan2 Kilby Labs, Texas In
ISSCC 2021 Session 5 Analog Circuits
A Hybrid Thermal-Diffusivity/Resistor-Based Temperature Sensor with a Self-Calibrated Inaccuracy of ±0.25°C (3σ) from −55°C to 125°C
Sining Pan, Jan A. Angevare, Kofi A. A. Makinwa
Resistor-based temperature sensors can achieve higher resolution and energy-efficiency than traditional BJT-based sensors. To reach similar accuracy, however, they typically require 2-point (2-pt) calibration, compared t
Delft University of Technology, Delft, The Netherlands
ISSCC 2021 Session 5 Analog Circuits
A Highly Digital 2210µm2 Resistor-Based Temperature Sensor with a 1-Point Trimmed Inaccuracy of ±1.3°C (3σ) from -55°C to 125°C in 65nm CMOS
Jan A. Angevare1, Youngcheol Chae2, Kofi A. A. Makinwa1
Yonsei University, Seoul, Korea 1 2 Microprocessors and SoCs employ multiple temperature sensors to prevent overheating and ensure reliable operation. Such sensors should be small (<10,000µm)) to monitor local hot-spots
Delft University of Technology, Delft, The Netherlands
ISSCC 2021 Session 5 Analog Circuits
Capacitance-to-Digital Converter for Operation Under
Uncertain Harvested Voltage down to 0.3V with No Trimming, Reference and Voltage Regulation
capacitive sensing via capacitance-to-digital conversion (CDC) needs to operate with minimal or no support from additional circuitry such as voltage regulation, voltage/current references or digital post-processing as sh
Orazio Aiello1, Paolo Crovetti2, Massimo Alioto1 National University o
ISSCC 2021 Session 5 Analog Circuits
A 1.5µW 0.135pJ∙%RH2 CMOS Humidity Sensor Using Adaptive Range-Shift Zoom CDC and Power-Aware Floating Inverter Amplifier Array
Heyi Li1, Zhichao Tan2, Yuanxin Bao3, Han Xiao3, Hao Zhang1, Kaixuan Du1,
China in the DSM is ~200fF, and an LSB of the SAR DAC is ~50fF. Hence, the differential input range of the DSM can be calculated as 2%200fF/50fF = 8LSBs of the SAR, and 0.5LSB error is equal to 6.25% of the range. When A
Yihan Zhang1, Le Ye1,3, Ru Huang1 Peking University, Beijing, China Zh
ISSCC 2021 Session 31 Analog Circuits
A Chopper-Stabilized Amplifier with -107dB IMD and 28dB Suppression of Chopper-Induced IMD
Thije Rooijers1, Shoubhik Karmakar1, Yoshinori Kusuda2, Johan H. Huijsing1, Kofi A. A. Makinwa1
low-frequency noise. However, the interaction between the input signal and the chopper clock can cause chopper-induced intermodulation distortion (IMD) [1-5]. This is especially problematic for input frequencies (Fin) ne
Delft University of Technology, Delft, The Netherlands Analog Devices,
ISSCC 2021 Session 31 Analog Circuits
A 0.14mm2 16MHz CMOS RC Frequency Reference with a 1-Point Trimmed Inaccuracy of ±400ppm from −45°C to 85°C
Hui Jiang, Sining Pan, Çağrı Gürleyük, Kofi A. A. Makinwa
Recently, rapid strides have been made in improving the accuracy of RC-based frequency references [1-3]. Inaccuracies better than ±500ppm from -45°C to 85°C have been achieved, but typically at the expense of a costly an
Delft University of Technology, Delft, The Netherlands
ISSCC 2021 Session 31 Analog Circuits
A 0.9V 28MHz Dual-RC Frequency Reference with 5pJ/Cycle and ±200ppm Inaccuracy from -40°C to 85°C
Woojun Choi1, Jan A. Angevare2, Injun Park1, Kofi A. A. Makinwa2, Youngcheol Chae1
applications require a stable on-chip frequency reference with low energy (<10pJ/cycle) and high frequency stability (below ±300ppm). CMOS RC frequency references are promising due to their low-cost integration and high
Yonsei University, Seoul, Korea Delft University of Technology, Delft,
ISSCC 2021 Session 31 Analog Circuits
An 82mW ΔΣ-Based Filter-Less Class-D Headphone Amplifier with -93dB THD+N, 113dB SNR and 93% Efficiency
Atsushi Matamura1, Naoaki Nishimura1, Preston Birdsong2,
(ANC) headphones require low-latency digital-input headphone drivers that consume the lowest possible power to maximize battery life while providing high-fidelity audio playback. Typical headphone drivers use Class-A/AB
Abhishek Bandyopadhyay2, Adam Spirer2, Mariana Markova2, Shaolong Liu2
ISSCC 2020 Session 3 Analog Circuits
A 23.6ppm/°C Monolithically Integrated GaN Reference Voltage Design with Temperature Range from -50°C to 200°C and Supply Voltage Range from 3.9 to 24V
Cheng-Hsing Liao1, Shang-Hsien Yang1, Meng-Yin Liao1,
Kai-Cheng Chung1, Neha Kumari1, Ke-Horng Chen1, Yin-Hsi Lin2, Shian-Ru Lin2, Tsung-Yen Tsai2, Ying-Zong Juang3 National Chiao Tung University, Hsinchu, Taiwan Realtek Semiconductor, Hsinchu, Taiwan 3 Taiwan Semiconductor
ISSCC 2020 Session 3 Analog Circuits
A 620µW BJT-Based Temperature-to-Digital Converter with 0.65mK Resolution and FoM of 190fJ·K2
Saleh Heidary Shalmany1, Kamran Souri1, Ugur Sonmez1,
(TDC) are used for temperature compensation of high-stability MEMS oscillators [1,2]. Such TDCs must achieve high resolution and high conversion rates in the kHz range to minimize temperature compensation impact on phase
Kianoush Souri2, Michele D'Urbino1, Said Hussaini1, Darryl Tauro2, Sas
ISSCC 2020 Session 3 Analog Circuits
A CMOS Resistor-Based Temperature Sensor with a 10fJ∙K2 Resolution FoM and 0.4°C (3σ) Inaccuracy From −55°C to 125°C After a 1-point Trim
Sining Pan, Kofi A. A. Makinwa
Energy efficiency and accuracy are important specifications of CMOS temperature sensors. BJT-based sensors achieve state-of-the-art accuracy [1], while Wheatstone-bridge (WhB) sensors achieve lower accuracy but state-of-
Delft University of Technology, Delft, The Netherlands
ISSCC 2020 Session 3 Analog Circuits
A 34µW 32MHz RC Oscillator with ±530ppm Inaccuracy from -40°C to 85°C and 80ppm/V Supply Sensitivity Enabled by Pulse-Density Modulated Resistors
Amr Khashaba, Junheng Zhu, Mostafa Ahmed, Nilanjan Pal, Pavan Kumar Hanumolu
University of Illinois, Urbana, IL Monolithic frequency references built using on-chip time constants are gaining popularity as possible replacements to bulky quartz-crystal or MEMS-based oscillators in low-cost applicat
ISSCC 2020 Session 3 Analog Circuits
A 16MHz CMOS RC Frequency Reference with ±400ppm Inaccuracy from -45°C to 85°C After Digital Linear Temperature Compensation
Çağrı Gürleyük, Sining Pan, Kofi A. A. Makinwa
Systems-on-chip traditionally rely on bulky quartz crystals to comply with wired communication standards like CAN or USB 2.0. Integrated frequency references with better than 500ppm inaccuracy could meet this need, resul
Delft University of Technology, Delft, The Netherlands
ISSCC 2020 Session 3 Analog Circuits
A 0.51nW 32kHz Crystal Oscillator Achieving 2ppb Allan Deviation Floor Using High-Energy-to-Noise-Ratio Pulse Injection
Li Xu1, Taekwang Jang2, Jongyup Lim1, Kyojin Choo1, David Blaauw1, Dennis Sylvester1
minimum power while disturbing the oscillation as little as possible. In order to achieve subnW power consumption, there are three fundamental considerations: the loss in the crystal, the efficiency of energy injection,
University of Michigan, Ann Arbor, MI ETH Zürich, Zürich, Switzerland
ISSCC 2020 Session 3 Analog Circuits
A 0.0088mm2 Resistor-Based Temperature Sensor Achieving 92fJ·K2 FoM in 65nm CMOS
Amr Khashaba, Junheng Zhu, Ahmed Elmallah, Mostafa Ahmed, Pavan Kumar Hanumolu
University of Illinois, Urbana, IL Resistor-based temperature sensors can achieve superior performance in terms of energy efficiency and resolution compared to their BJT counterparts. Among them, Wien- (WB)[1]- and Wheat