Publications

A 0.014mm2 10kHz-BW Zoom-Incremental-Counting ADC Achieving 103dB SNDR and 100dB Full-Scale CMRR

ISSCC, 2022
Lu Jie, Mingtao Zhan, Xiyuan Tang, Nan Sun
A 0.014mm2 10kHz-BW Zoom-Incremental-Counting ADC Achieving 103dB SNDR and 100dB Full-Scale CMRR

A 0.004-mm2 200MS/s Pipelined SAR ADC with kT/C Noise Cancellation and Robust Ring-Amp

ISSCC, 2022
Mingtao Zhan, Lu Jie, Xiyuan Tang, Nan Sun
A 0.004-mm2 200MS/s Pipelined SAR ADC with kT/C Noise Cancellation and Robust Ring-Amp

An Overview of Noise-Shaping SAR ADC: From Fundamentals to the Frontier

OJSSCS, 2021
Lu Jie, Xiyuan Tang, Jiaxin Liu, Linxiao Shen, Shaolan Li, Nan Sun, Michael P. Flynn
IEEE Xplore
An Overview of Noise-Shaping SAR ADC: From Fundamentals to the Frontier

A 51-pJ/Pixel 33.7-dB PSNR 4× Compressive CMOS Image Sensor With Column-Parallel Single-Shot Compressive Sensing

JSSC, 2021
Chanmin Park, Wenda Zhao, Injun Park, Nan Sun, Youngcheol Chae
IEEE Xplore
A 51-pJ/Pixel 33.7-dB PSNR 4× Compressive CMOS Image Sensor With Column-Parallel Single-Shot Compressive Sensing

A Fully Dynamic Low-Power Wideband Time-Interleaved Noise-Shaping SAR ADC

JSSC, 2021
Haoyu Zhuang, Jiaxin Liu, He Tang, Xizhu Peng, Nan Sun
IEEE Xplore
A Fully Dynamic Low-Power Wideband Time-Interleaved Noise-Shaping SAR ADC

27.7 A 79dB-SNDR 167dB-FoM Bandpass ΔΣ ADC Combining N-Path Filter with Noise-Shaping SAR

ISSCC, 2021
Linxiao Shen, Zijie Gao, Xiangxing Yang, Wei Shi, Nan Sun
IEEE Xplore
27.7 A 79dB-SNDR 167dB-FoM Bandpass ΔΣ ADC Combining N-Path Filter with Noise-Shaping SAR

27.4 A 0.4-to-40MS/s 75.7dB-SNDR Fully Dynamic Event-Driven Pipelined ADC with 3-Stage Cascoded Floating Inverter Amplifier

ISSCC, 2021
Xiyuan Tang, Xiangxing Yang, Jiaxin Liu, Wei Shi, David Z. Pan, Nan Sun
IEEE Xplore
27.4 A 0.4-to-40MS/s 75.7dB-SNDR Fully Dynamic Event-Driven Pipelined ADC with 3-Stage Cascoded Floating Inverter Amplifier

27.1 A 250kHz-BW 93dB-SNDR 4th-Order Noise-Shaping SAR Using Capacitor Stacking and Dynamic Buffering

ISSCC, 2021
Jiaxin Liu, Dengquan Li, Yi Zhong, Xiyuan Tang, Nan Sun
IEEE Xplore
27.1 A 250kHz-BW 93dB-SNDR 4th-Order Noise-Shaping SAR Using Capacitor Stacking and Dynamic Buffering

15.2 A 2.75-to-75.9TOPS/W Computing-in-Memory NN Processor Supporting Set-Associate Block-Wise Zero Skipping and Ping-Pong CIM with Simultaneous Computation and Weight Updating

ISSCC, 2021
Jinshan Yue, Xiaoyu Feng, Yifan He, Yuxuan Huang, Yipeng Wang, Zhe Yuan, Mingtao Zhan, Jiaxin Liu, Jian-Wei Su, Yen-Lin Chung, Ping-Chun Wu, Li-Yang Hung, Meng-Fan Chang, Nan Sun, Xueqing Li, Huazhong Yang, Yongpan Liu
IEEE Xplore
15.2 A 2.75-to-75.9TOPS/W Computing-in-Memory NN Processor Supporting Set-Associate Block-Wise Zero Skipping and Ping-Pong CIM with Simultaneous Computation and Weight Updating

10.4 A 3.7mW 12.5MHz 81dB-SNDR 4th-Order CTDSM with Single-OTA and 2nd-Order NS-SAR

ISSCC, 2021
Wei Shi, Jiaxin Liu, Abhishek Mukherjee, Xiangxing Yang, Xiyuan Tang, Linxiao Shen, Wenda Zhao, Nan Sun
IEEE Xplore
10.4 A 3.7mW 12.5MHz 81dB-SNDR 4th-Order CTDSM with Single-OTA and 2nd-Order NS-SAR

A 77.1-dB-SNDR 6.25-MHz-BW Pipeline SAR ADC With Enhanced Interstage Gain Error Shaping and Quantization Noise Shaping

JSSC, 2021 (CICC invited submission)
Chen-Kai Hsu, Xiyuan Tang, Jiaxin Liu, Rui Xu, Wenda Zhao, Abhishek Mukherjee, Timothy R. Andeen, Nan Sun
IEEE Xplore
A 77.1-dB-SNDR 6.25-MHz-BW Pipeline SAR ADC With Enhanced Interstage Gain Error Shaping and Quantization Noise Shaping

A 13.5-ENOB, 107-μW Noise-Shaping SAR ADC With PVT-Robust Closed-Loop Dynamic Amplifier

JSSC, 2020 (ISSCC invited submission)
Xiyuan Tang, Xiangxing Yang, Wenda Zhao, Chen-Kai Hsu, Jiaxin Liu, Linxiao Shen, Abhishek Mukherjee, Wei Shi, Shaolan Li, David Z. Pan, Nan Sun
IEEE Xplore
A 13.5-ENOB, 107-μW Noise-Shaping SAR ADC With PVT-Robust Closed-Loop Dynamic Amplifier

A 13-bit 0.005-mm2 40-MS/s SAR ADC With kT/C Noise Cancellation

JSSC, 2020 (ISSCC invited submission)
Jiaxin Liu, Xiyuan Tang, Wenda Zhao, Linxiao Shen, Nan Sun
IEEE Xplore
A 13-bit 0.005-mm2 40-MS/s SAR ADC With kT/C Noise Cancellation

A 74.5-dB Dynamic Range 10-MHz BW CT-ΔΣ ADC With Distributed-Input VCO and Embedded Capacitive-π Network in 40-nm CMOS

JSSC, 2021
Abhishek Mukherjee, Miguel Gandara, Xiangxing Yang, Linxiao Shen, Xiyuan Tang, Chen-Kai Hsu, Nan Sun
IEEE Xplore
A 74.5-dB Dynamic Range 10-MHz BW CT-ΔΣ ADC With Distributed-Input VCO and Embedded Capacitive-π Network in 40-nm CMOS

A 7-bit 900-MS/s 2-Then-3-bit/cycle SAR ADC With Background Offset Calibration

JSSC, 2020
Dengquan Li, Zhangming Zhu, Jiaxin Liu, Haoyu Zhuang, Yintang Yang, Nan Sun
IEEE Xplore
A 7-bit 900-MS/s 2-Then-3-bit/cycle SAR ADC With Background Offset Calibration

An Energy-Efficient Time-Domain Incremental Zoom Capacitance-to-Digital Converter

JSSC, 2020
Xiyuan Tang, Shaolan Li, Xiangxing Yang, Linxiao Shen, Wenda Zhao, Randall P. Williams, Jiaxin Liu, Zhichao Tan, Neal A. Hall, David Z. Pan, Nan Sun
IEEE Xplore
An Energy-Efficient Time-Domain Incremental Zoom Capacitance-to-Digital Converter

9.5 A 13.5b-ENOB Second-Order Noise-Shaping SAR with PVT-Robust Closed-Loop Dynamic Amplifier

ISSCC, 2020
Xiyuan Tang, Xiangxing Yang, Wenda Zhao, Chen-Kai Hsu, Jiaxin Liu, Linxiao Shen, Abhishek Mukherjee, Wei Shi, David Z. Pan, Nan Sun
IEEE Xplore
9.5 A 13.5b-ENOB Second-Order Noise-Shaping SAR with PVT-Robust Closed-Loop Dynamic Amplifier

9.3 A 40kHz-BW 90dB-SNDR Noise-Shaping SAR with 4× Passive Gain and 2nd-Order Mismatch Error Shaping

ISSCC, 2020
Jiaxin Liu, Xing Wang, Zijie Gao, Mingtao Zhan, Xiyuan Tang, Nan Sun
IEEE Xplore
9.3 A 40kHz-BW 90dB-SNDR Noise-Shaping SAR with 4× Passive Gain and 2nd-Order Mismatch Error Shaping

16.5 A 13b 0.005mm2 40MS/s SAR ADC with kT/C Noise Cancellation

ISSCC, 2020
Jiaxin Liu, Xiyuan Tang, Wenda Zhao, Linxiao Shen, Nan Sun
IEEE Xplore
16.5 A 13b 0.005mm2 40MS/s SAR ADC with kT/C Noise Cancellation

A Pipeline SAR ADC With Second-Order Interstage Gain Error Shaping

JSSC, 2020 (VLSI invited submission)
Chen-Kai Hsu, Timothy R. Andeen, Nan Sun
IEEE Xplore
A Pipeline SAR ADC With Second-Order Interstage Gain Error Shaping

An Energy-Efficient Comparator With Dynamic Floating Inverter Amplifier

JSSC, 2020 (VLSI invited submission)
Xiyuan Tang, Linxiao Shen, Begum Kasap, Xiangxing Yang, Wei Shi, Abhishek Mukherjee, David Z. Pan, Nan Sun
IEEE Xplore
An Energy-Efficient Comparator With Dynamic Floating Inverter Amplifier

A 0.025-mm2 0.8-V 78.5-dB SNDR VCO-Based Sensor Readout Circuit in a Hybrid PLL-ΔΣ M Structure

JSSC, 2020 (CICC invited submission)
Wenda Zhao, Shaolan Li, Biying Xu, Xiangxing Yang, Xiyuan Tang, Linxiao Shen, Nanshu Lu, David Z. Pan, Nan Sun
IEEE Xplore
A 0.025-mm2 0.8-V 78.5-dB SNDR VCO-Based Sensor Readout Circuit in a Hybrid PLL-ΔΣ M Structure

A Fractional- N PLL With Space–Time Averaging for Quantization Noise Reduction

JSSC, 2020 (CICC invited submission)
Yanlong Zhang, Arindam Sanyal, Xueyi Yu, Xing Quan, Kailin Wen, Xiyuan Tang, Gang Jin, Li Geng, Nan Sun
IEEE Xplore
A Fractional- N PLL With Space–Time Averaging for Quantization Noise Reduction

A Second-Order Purely VCO-Based CT ΔΣ ADC Using a Modified DPLL Structure in 40-nm CMOS

JSSC, 2020
Yi Zhong, Shaolan Li, Xiyuan Tang, Linxiao Shen, Wenda Zhao, Siliang Wu, Nan Sun
IEEE Xplore
A Second-Order Purely VCO-Based CT ΔΣ ADC Using a Modified DPLL Structure in 40-nm CMOS

A 10-bit 120-MS/s SAR ADC With Reference Ripple Cancellation Technique

JSSC, 2020 (CICC invited submission)
Yi Shen, Xiyuan Tang, Linxiao Shen, Wenda Zhao, Xin Xin, Shubin Liu, Zhangming Zhu, Visvesh S. Sathe, Nan Sun
IEEE Xplore
A 10-bit 120-MS/s SAR ADC With Reference Ripple Cancellation Technique

An OTA-Less Second-Order VCO-Based CT ΔΣ Modulator Using an Inherent Passive Integrator and Capacitive Feedback

JSSC, 2020
Shaolan Li, David Z. Pan, Nan Sun
IEEE Xplore
An OTA-Less Second-Order VCO-Based CT ΔΣ Modulator Using an Inherent Passive Integrator and Capacitive Feedback

A Two-Step ADC With a Continuous-Time SAR-Based First Stage

JSSC, 2019
Linxiao Shen, Yi Shen, Zhelu Li, Wei Shi, Xiyuan Tang, Shaolan Li, Wenda Zhao, Mantian Zhang, Zhangming Zhu, Nan Sun
IEEE Xplore
A Two-Step ADC With a Continuous-Time SAR-Based First Stage

A Second-Order Noise-Shaping SAR ADC With Passive Integrator and Tri-Level Voting

JSSC, 2019
Haoyu Zhuang, Wenjuan Guo, Jiaxin Liu, He Tang, Zhangming Zhu, Long Chen, Nan Sun
IEEE Xplore
A Second-Order Noise-Shaping SAR ADC With Passive Integrator and Tri-Level Voting

3.4 A 0.01mm2 25µW 2MS/s 74dB-SNDR Continuous-Time Pipelined-SAR ADC with 120fF Input Capacitor

ISSCC. 2019
Linxiao Shen, Yi Shen, Xiyuan Tang, Chen-Kai Hsu, Wei Shi, Shaolan Li, Wenda Zhao, Abhishek Mukherjee, Nan Sun
IEEE Xplore
3.4 A 0.01mm2 25µW 2MS/s 74dB-SNDR Continuous-Time Pipelined-SAR ADC with 120fF Input Capacitor

18.2 A 16fJ/Conversion-Step Time-Domain Two-Step Capacitance-to-Digital Converter

ISSCC. 2019
Xiyuan Tang, Shaolan Li, Linxiao Shen, Wenda Zhao, Xiangxing Yang, Randy Williams, Jiaxin Liu, Zhichao Tan, Neal Hall, Nan Sun
IEEE Xplore
18.2 A 16fJ/Conversion-Step Time-Domain Two-Step Capacitance-to-Digital Converter

A 0.029-mm2 17-fJ/Conversion-Step Third-Order CT ΔΣ ADC With a Single OTA and Second-Order Noise-Shaping SAR Quantizer

JSSC, 2019
Jiaxin Liu, Shaolan Li, Wenjuan Guo, Guangjun Wen, Nan Sun
IEEE Xplore
A 0.029-mm2 17-fJ/Conversion-Step Third-Order CT ΔΣ ADC With a Single OTA and Second-Order Noise-Shaping SAR Quantizer

A 13-ENOB Second-Order Noise-Shaping SAR ADC Realizing Optimized NTF Zeros Using the Error-Feedback Structure

JSSC, 2018
Shaolan Li, Bo Qiao, Miguel Gandara, David Z. Pan, Nan Sun
IEEE Xplore
A 13-ENOB Second-Order Noise-Shaping SAR ADC Realizing Optimized NTF Zeros Using the Error-Feedback Structure

A 13-ENOB 2nd-order noise-shaping SAR ADC realizing optimized NTF zeros using an error-feedback structure

ISSCC, 2018
Shaolan Li, Bo Qiao, Miguel Gandara, Nan Sun
IEEE Xplore
A 13-ENOB 2nd-order noise-shaping SAR ADC realizing optimized NTF zeros using an error-feedback structure

A 1-V 0.25-μW Inverter Stacking Amplifier With 1.07 Noise Efficiency Factor

JSSC, 2018
Linxiao Shen, Nanshu Lu, Nan Sun
IEEE Xplore
A 1-V 0.25-μW Inverter Stacking Amplifier With 1.07 Noise Efficiency Factor

A 6-bit 0.81-mW 700-MS/s SAR ADC With Sparkle-Code Correction, Resolution Enhancement, and Background Window Width Calibration

JSSC, 2018
Yeonam Yoon, Nan Sun
IEEE Xplore
A 6-bit 0.81-mW 700-MS/s SAR ADC With Sparkle-Code Correction, Resolution Enhancement, and Background Window Width Calibration

A 10-b 800-MS/s Time-Interleaved SAR ADC With Fast Variance-Based Timing-Skew Calibration

JSSC, 2017
Jeonggoo Song, Kareem Ragab, Xiyuan Tang, Nan Sun
IEEE Xplore
A 10-b 800-MS/s Time-Interleaved SAR ADC With Fast Variance-Based Timing-Skew Calibration

A Fully Passive Compressive Sensing SAR ADC for Low-Power Wireless Sensors

JSSC, 2017
Wenjuan Guo, Youngchun Kim, Ahmed H. Tewfik, Nan Sun
IEEE Xplore
A Fully Passive Compressive Sensing SAR ADC for Low-Power Wireless Sensors

A 174.3-dB FoM VCO-Based CT ΔΣ Modulator With a Fully-Digital Phase Extended Quantizer and Tri-Level Resistor DAC in 130-nm CMOS

JSSC, 2017
Shaolan Li, Abhishek Mukherjee, Nan Sun
IEEE Xplore
A 174.3-dB FoM VCO-Based CT ΔΣ Modulator With a Fully-Digital Phase Extended Quantizer and Tri-Level Resistor DAC in 130-nm CMOS

An Energy-Efficient Hybrid SAR-VCO ΔΣ Capacitance-to-Digital Converter in 40-nm CMOS

JSSC, 2017
Arindam Sanyal, Nan Sun
IEEE Xplore
An Energy-Efficient Hybrid SAR-VCO ΔΣ Capacitance-to-Digital Converter in 40-nm CMOS

A 0.7-V 0.6-μW 100-kS/s Low-Power SAR ADC With Statistical Estimation-Based Noise Reduction

JSSC, 2017
Long Chen, Xiyuan Tang, Arindam Sanyal, Yeonam Yoon, Jie Cong, Nan Sun
IEEE Xplore
A 0.7-V 0.6-μW 100-kS/s Low-Power SAR ADC With Statistical Estimation-Based Noise Reduction

A 12-b ENOB 2.5-MHz BW VCO-Based 0-1 MASH ADC With Direct Digital Background Calibration

JSSC, 2017
Kareem Ragab, Nan Sun
IEEE Xplore
A 12-b ENOB 2.5-MHz BW VCO-Based 0-1 MASH ADC With Direct Digital Background Calibration

Palm NMR and 1-Chip NMR

JSSC, 2011
Nan Sun, Tae-Jong Yoon, Hakho Lee, William Andress, Ralph Weissleder, Donhee Ham
IEEE Xplore
Palm NMR and 1-Chip NMR

Palm NMR and one-chip NMR

ISSCC, 2010
Nan Sun, Tae-Jong Yoon, Hakho Lee, William Andress, Vasiliki Demas, Pablo Prado, Ralph Weissleder, Donhee Ham
IEEE Xplore
Palm NMR and one-chip NMR

CMOS RF Biosensor Utilizing Nuclear Magnetic Resonance

JSSC, 2009
Nan Sun, Yong Liu, Hakho Lee, Ralph Weissleder, Donhee Ham
IEEE Xplore
CMOS RF Biosensor Utilizing Nuclear Magnetic Resonance

CMOS Mini Nuclear Magnetic Resonance System and its Application for Biomolecular Sensing

ISSCC, 2008
Yong Liu, Nan Sun, Hakho Lee, Ralph Weissleder, Donhee Ham
IEEE Xplore
CMOS Mini Nuclear Magnetic Resonance System and its Application for Biomolecular Sensing

On the Self-Generation of Electrical Soliton Pulses

JSSC, 2007
David S. Ricketts, Xiaofeng Li, Nan Sun, Kyoungho Woo, Donhee Ham
IEEE Xplore
On the Self-Generation of Electrical Soliton Pulses