Loading [MathJax]/extensions/MathMenu.js

Sanfeng Zhang - IEEE Xplore Author Profile

Scheduled Maintenance on Monday 1/13/2025

Single article sales and account management will be unavailable from 5:00 AM - 7:00 PM ET (09:00 - 23:00 UTC). We apologize for the inconvenience.

IEEE.org
IEEE Xplore
IEEE SA
IEEE Spectrum
More Sites

- Donate
- Personal Sign In

Institutional Sign In

Institutional Sign In

ADVANCED SEARCH

Author details

Sanfeng Zhang

Publications

13

Citations

73

Publications by Year

20152022

Co-Authors:

Vahid BehravanMeng-Fan ChangPatrick Y. ChiangZhaoming DingChunmeng Dou

Show All Co-Authors (30)

Sanfeng Zhang

Affiliation

Institute of Integrated Circuits and Systems(IICS)

University of Electronic Science and Technology of China

Chengdu, China

Publication Topics

Fast Fourier Transform,
Input-referred Noise,
Low Voltage,
Noise Performance,
Parasitic Capacitance,
Power Consumption,
Simulation Results,
Supply Voltage,
Amplification Phase,
Analog-to-digital Converter,
Common-mode Current,
Common-mode Rejection Ratio

Biography

Sanfeng Zhang (Graduate Student Member, IEEE) received the B.S. degree from the School of Microelectronics and Solid-State Electronics, University of Electronic Science and Technology of China, Chengdu, China, in 2015. He is currently pursuing the Ph.D. degree with the Institute of Integrated Circuits and Systems, University of Electronic Science and Technology of China.,His current research interests include high-precision analog and mixed-signal circuits for biomedical and sensor interfaces.(Based on document published on 1 July 2021).

Publications

13

Citations

73

Publications by Year

20152022

Co-Authors:

Vahid Behravan
Meng-Fan Chang
Patrick Y. Chiang
Zhaoming Ding
Chunmeng Dou

Show All Co-Authors (30)

Author's Published Works

Search History

Showing 1-13 of 13 results

Conferences (10)

Journals (3)

Sort

Filter Results

Show

Open Access Only

Range
Single Year
Sanfeng Zhang(13)
Qiang Li(13)
Xiong Zhou(10)
Bojun Hu(4)
Chen Gao(4)
Institute of Integrated Circuits and Systems (IICS), University of Electronic Science and Technology of China, Chengdu, China(5)
University of Electronic Science and Technology of China, Chengdu, China(2)
Institute of Integrated Circuits and Systems, University of Electronic Science and Technology of China, Chengdu, China(2)
ISL/ME/ETFID, University of Electronic Science and Technology of China, Chengdu, China(1)
School of EECS, Oregon State University, Corvallis, OR, USA(1)
2021 IEEE International Symposium on Circuits and Systems (ISCAS)(3)
IEEE Journal of Solid-State Circuits(2)
2015 11th Conference on Ph.D. Research in Microelectronics and Electronics (PRIME)(1)
2016 IEEE Biomedical Circuits and Systems Conference (BioCAS)(1)
2016 IEEE MTT-S International Wireless Symposium (IWS)(1)
IEEE(13)
Media(1)
Daegu, Korea(3)
Shanghai, China(2)
Austin, TX, USA(1)
Chengdu, China(1)
Dubai, United Arab Emirates(1)
Input-referred Noise(5)
Low Voltage(4)
Noise Performance(4)
Power Consumption(4)
Supply Voltage(4)

Select All on Page

Sort By

Results

A 100dB-TCMRR 8-Channel Bio-Potential Front-End with Multi-Channel Common-Mode Replication

Borui Tan;Sanfeng Zhang;Chen Gao;Xiong Zhou;Qiang Li

2022 IEEE International Symposium on Circuits and Systems (ISCAS)

Year: 2022 | Conference Paper |

HTML

For a multichannel bio-potential signal acquisition front-end, it's total CMRR (TCMRR) is restricted by these three factors: the inherent CMRR (ICMRR) of the amplifier used in the acquisition front-end, the impedance mismatch of electrodes, and the systematic mismatch due to the shared reference electrode. This paper presents a 8-channel bio-potential front-end with multi-channel common-mode repli...Show More

A 100dB-TCMRR 8-Channel Bio-Potential Front-End with Multi-Channel Common-Mode Replication

Borui Tan;Sanfeng Zhang;Chen Gao;Xiong Zhou;Qiang Li

2022 IEEE International Symposium on Circuits and Systems (ISCAS)

Year: 2022 | Conference Paper |

A 130-dB CMRR Instrumentation Amplifier With Common-Mode Replication

Sanfeng Zhang;Xiong Zhou;Chen Gao;Qiang Li

IEEE Journal of Solid-State Circuits

Year: 2022 | Volume: 57, Issue: 1 | Journal Article |

Cited by: Papers (17)

HTML

High common-mode rejection ratio (CMRR) of an analog front end (AFE) requires high intrinsic CMRR of the front-end amplifier with high input common-mode (CM) impedance. This article presents a common-mode replication (CM-REP) technique, which replicates the input CM voltage over the front-end amplifier. By eliminating the CM current flow and its mismatch effect, CM-REP improves CMRR and input CM i...Show More

A 130-dB CMRR Instrumentation Amplifier With Common-Mode Replication

Sanfeng Zhang;Xiong Zhou;Chen Gao;Qiang Li

IEEE Journal of Solid-State Circuits

Year: 2022 | Volume: 57, Issue: 1 | Journal Article |

A Comparator Speed Enhancement Technique for Near- and Sub-Threshold ADCs

Bojun Hu;Sanfeng Zhang;Xiong Zhou;Zehao Li;Xiangxin Pan;Zhaoming Ding;Qiang Li

2021 28th IEEE International Conference on Electronics, Circuits, and Systems (ICECS)

Year: 2021 | Conference Paper |

HTML

This paper presents a comparator speed enhancement technique for successive approximation register (SAR) analog-to-digital converter (ADC) under near- and sub-threshold supply voltages. The proposed delayed cross-coupling comparator effectively improves the speed of the comparator while maintaining a good noise performance. This work has been proved by a 350mV 8bit 12MS/s SAR ADC designed in a 65n...Show More

A Comparator Speed Enhancement Technique for Near- and Sub-Threshold ADCs

Bojun Hu;Sanfeng Zhang;Xiong Zhou;Zehao Li;Xiangxin Pan;Zhaoming Ding;Qiang Li

2021 28th IEEE International Conference on Electronics, Circuits, and Systems (ICECS)

Year: 2021 | Conference Paper |

A Ku-Band SiGe Phased-Array Transceiver with 6-Bit Phase and Attenuation Control

Bojun Hu;Chao Liu;Sanfeng Zhang;Qiang Li

2021 IEEE International Symposium on Circuits and Systems (ISCAS)

Year: 2021 | Conference Paper |

Cited by: Papers (2)

HTML

A Ku-band phased-array transceiver using 0.13- μm SiGe BiCMOS technology is proposed in this paper for satellite communication applications. With a 6-bit inductive compensated attenuator and a 6-bit phase shifter integrated in the common-leg of the receive (RX) and transmit (TX) paths, the transceiver realizes 6-bit phase and attenuation control of the RF signal. The transceiver realizes larger th...Show More

A Ku-Band SiGe Phased-Array Transceiver with 6-Bit Phase and Attenuation Control

Bojun Hu;Chao Liu;Sanfeng Zhang;Qiang Li

2021 IEEE International Symposium on Circuits and Systems (ISCAS)

Year: 2021 | Conference Paper |

A 40nm 1Mb 35.6 TOPS/W MLC NOR-Flash Based Computation-in-Memory Structure for Machine Learning

Yuxin Zhang;Sitao Zeng;Zhiguo Zhu;Zhaolong Qin;Chen Wang;Jingjing Li;Sanfeng Zhang;Yajuan He;Chunmeng Dou;Xin Si;Meng-Fan Chang;Qiang Li

2021 IEEE International Symposium on Circuits and Systems (ISCAS)

Year: 2021 | Conference Paper |

Cited by: Papers (8)

HTML

Computation-in-memory (CIM) is a feasible method to overcome "Von-Neumann bottleneck" with high throughput and energy efficiency. In this paper, we proposed a 1Mb Multi-Level (MLC) NOR Flash based CIM (MLFlash- CIM) structure with 40nm technology node. A multi-bit readout circuit was proposed to realize adaptive quantization, which comprises a current interface circuit, a multi-level analog shift ...Show More

A 40nm 1Mb 35.6 TOPS/W MLC NOR-Flash Based Computation-in-Memory Structure for Machine Learning

Yuxin Zhang;Sitao Zeng;Zhiguo Zhu;Zhaolong Qin;Chen Wang;Jingjing Li;Sanfeng Zhang;Yajuan He;Chunmeng Dou;Xin Si;Meng-Fan Chang;Qiang Li

2021 IEEE International Symposium on Circuits and Systems (ISCAS)

Year: 2021 | Conference Paper |

A Sampling Speed Enhancement Technique for Near-Threshold SAR ADCs

Bojun Hu;Sanfeng Zhang;Xiong Zhou;Xiangxin Pan;Zhaoming Ding;Qiang Li

2021 IEEE International Symposium on Circuits and Systems (ISCAS)

Year: 2021 | Conference Paper |

Cited by: Papers (1)

HTML

This paper presents a sampling speed-enhancement technique for SAR ADCs under near-threshold supply voltages. The proposed level-shifted boosting circuit generates sharp falling edges for the sampling clock, which is found a key factor limiting the sample speed under ultra-low voltages. A 0.35V 8b 12MS/s SAR ADC is designed in a 65nm CMOS technology to prove this technique. The post-layout simulat...Show More

A Sampling Speed Enhancement Technique for Near-Threshold SAR ADCs

Bojun Hu;Sanfeng Zhang;Xiong Zhou;Xiangxin Pan;Zhaoming Ding;Qiang Li

2021 IEEE International Symposium on Circuits and Systems (ISCAS)

Year: 2021 | Conference Paper |

Sampling and Comparator Speed-Enhancement Techniques for Near-Threshold SAR ADCs

Bojun Hu;Sanfeng Zhang;Xiangxin Pan;Xiangyu Zhao;Zhaoming Ding;Xiong Zhou;Shiheng Yang;Qiang Li

IEEE Open Journal of Circuits and Systems

Year: 2021 | Volume: 2 | Journal Article |

Cited by: Papers (3)

HTML

This paper presents the sampling and comparator speed-enhancement techniques for SAR ADCs under near-threshold supply voltages. The proposed level-shifted boosting circuit generates sharp falling edges for the sampling clock, which is found a key factor limiting the sample speed under ultra-low voltages. Delayed cross-coupling comparator is introduced in this work, which enhances the comparator re...Show More

Sampling and Comparator Speed-Enhancement Techniques for Near-Threshold SAR ADCs

Bojun Hu;Sanfeng Zhang;Xiangxin Pan;Xiangyu Zhao;Zhaoming Ding;Xiong Zhou;Shiheng Yang;Qiang Li

IEEE Open Journal of Circuits and Systems

Year: 2021 | Volume: 2 | Journal Article |

An AC-Coupled Instrumentation Amplifier Achieving 110-dB CMRR at 50 Hz With Chopped Pseudoresistors and Successive-Approximation-Based Capacitor Trimming

Sanfeng Zhang;Xiong Zhou;Chen Gao;Qiang Li

IEEE Journal of Solid-State Circuits

Year: 2021 | Volume: 56, Issue: 1 | Journal Article |

Cited by: Papers (14)

HTML

High common-mode rejection ratio (CMRR) with concurrent electrode offset rejection is essential for physiological signal acquisitions. This article presents a CMRR enhancement technique for ac-coupled instrumentation amplifiers (ACIAs), where the mismatch of passive components limits the CMRR performance primarily. A modified chopping structure is proposed to mitigate the mismatch effect of the ps...Show More

An AC-Coupled Instrumentation Amplifier Achieving 110-dB CMRR at 50 Hz With Chopped Pseudoresistors and Successive-Approximation-Based Capacitor Trimming

Sanfeng Zhang;Xiong Zhou;Chen Gao;Qiang Li

IEEE Journal of Solid-State Circuits

Year: 2021 | Volume: 56, Issue: 1 | Journal Article |

23.7 A 130dB CMRR Instrumentation Amplifier with Common-Mode Replication

Sanfeng Zhang;Chen Gao;Xiong Zhou;Qiang Li

2020 IEEE International Solid-State Circuits Conference - (ISSCC)

Year: 2020 | Conference Paper |

Cited by: Papers (11)

HTML

Interfacing with high-impedance sensors, such as dry-contacted electrodes and accelerometers requires high CMRR with sufficient input impedance concurrently. From the system point of view, the total CMRR (TCMRR) is determined by the intrinsic CMRR (ICMRR) of the front-end amplifier as well as the imbalance of source impedance; the latter has to be accommodated by large input common-mode (CM) imped...Show More

23.7 A 130dB CMRR Instrumentation Amplifier with Common-Mode Replication

Sanfeng Zhang;Chen Gao;Xiong Zhou;Qiang Li

2020 IEEE International Solid-State Circuits Conference - (ISSCC)

Year: 2020 | Conference Paper |

A Voltage Swing Robust Pseudo-Resistor Structure for Biomedical Front-end Amplifier

Sanfeng Zhang;Xiong Zhou;Qiang Li

2018 IEEE Asia Pacific Conference on Circuits and Systems (APCCAS)

Year: 2018 | Conference Paper |

Cited by: Papers (7)

HTML

This paper proposes an improved pseudo-resistor structure with wide operation voltage. In bio-potential signal acquisition system, pseudo-resistors are always employed to realize very large RC time constant to suppress the input electrode DC offset voltage. With simple combination of two complementary back-to-back pseudo resistors, the resistance lifting across operating voltage is reduced. Accord...Show More

A Voltage Swing Robust Pseudo-Resistor Structure for Biomedical Front-end Amplifier

Sanfeng Zhang;Xiong Zhou;Qiang Li

2018 IEEE Asia Pacific Conference on Circuits and Systems (APCCAS)

Year: 2018 | Conference Paper |

Fast-settling technique under large electrode offset in integrated biopotential amplifiers

Hailiang Yao;Xiong Zhou;Sanfeng Zhang;Qiang Li

2016 IEEE Biomedical Circuits and Systems Conference (BioCAS)

Year: 2016 | Conference Paper |

HTML

This paper presents a fast-settling technique to reduce the settling time in response to large electrode offset voltage (EOV) in biopotential amplifiers. Settling response in a prototyped capacitively-coupled instrumentation amplifier is significantly accelerated by the proposed DC component feed-forward path; meanwhile the traditional feedback path is also employed to take care of residue DC offs...Show More

Fast-settling technique under large electrode offset in integrated biopotential amplifiers

Hailiang Yao;Xiong Zhou;Sanfeng Zhang;Qiang Li

2016 IEEE Biomedical Circuits and Systems Conference (BioCAS)

Year: 2016 | Conference Paper |

A 0.45V 687pW low noise amplifier front-end with 1.73 NEF for energy-scavenging IoT sensors

Shuo Li;Xiong Zhou;Sanfeng Zhang;Hailiang Yao;Qiang Li;Vahid Behravan;Arun Natarajan;Zhiliang Hong;Patrick Y. Chiang

2016 IEEE MTT-S International Wireless Symposium (IWS)

Year: 2016 | Conference Paper |

HTML

This paper presents a sub-nanowatt front-end amplifier for ultra-low-power wireless IoT sensor nodes. This chip consists of an instrumentation amplifier, a DC servo loop, a clock generator and a bias circuit. It is fully integrated, and therefore does not rely on any off-chip references. Fabricated in 65nm CMOS process, measurement results show that the amplifier system achieves 39dB gain and 0.1-...Show More

A 0.45V 687pW low noise amplifier front-end with 1.73 NEF for energy-scavenging IoT sensors

Shuo Li;Xiong Zhou;Sanfeng Zhang;Hailiang Yao;Qiang Li;Vahid Behravan;Arun Natarajan;Zhiliang Hong;Patrick Y. Chiang

2016 IEEE MTT-S International Wireless Symposium (IWS)

Year: 2016 | Conference Paper |

A 90-dB DC gain high-speed nested gain-boosted folded-cascode opamp

Sanfeng Zhang;Zheng Zhu;Hui Zhang;Zhou Xiong;Qiang Li

2015 11th Conference on Ph.D. Research in Microelectronics and Electronics (PRIME)

Year: 2015 | Conference Paper |

Cited by: Papers (10) | Patents (1)

HTML

A novel folded-cascode operational amplifier (opamp) employing the nested gain-boosted technique is presented. The gain-booster in the signal path consists of two-level recursive folded-cascode amplifier to achieve high gain and high speed. The opamp is designed and simulated in 0.13μm CMOS technology, bode-plot results that an open-loop gain over 90dB and a unity-gain frequency up to 4.75G for lo...Show More

A 90-dB DC gain high-speed nested gain-boosted folded-cascode opamp

Sanfeng Zhang;Zheng Zhu;Hui Zhang;Zhou Xiong;Qiang Li

2015 11th Conference on Ph.D. Research in Microelectronics and Electronics (PRIME)

Year: 2015 | Conference Paper |

IEEE Personal Account

Change username/password

Purchase Details

Payment Options
View Purchased Documents

Profile Information

Communications Preferences
Profession and Education
Technical interests

Need Help?

US & Canada: +1 800 678 4333
Worldwide: +1 732 981 0060
Contact & Support

Follow

About IEEE Xplore | Contact Us | Help | Accessibility | Terms of Use | Nondiscrimination Policy | IEEE Ethics Reporting | Sitemap | IEEE Privacy Policy

A public charity, IEEE is the world's largest technical professional organization dedicated to advancing technology for the benefit of humanity.

© Copyright 2025 IEEE - All rights reserved, including rights for text and data mining and training of artificial intelligence and similar technologies.

IEEE Account

Change Username/Password
Update Address

Purchase Details

Payment Options
Order History
View Purchased Documents

Profile Information

Communications Preferences
Profession and Education
Technical Interests

Need Help?

US & Canada: +1 800 678 4333
Worldwide: +1 732 981 0060
Contact & Support

About IEEE Xplore
Contact Us
Help
Accessibility
Terms of Use
Nondiscrimination Policy
Sitemap
Privacy & Opting Out of Cookies

A not-for-profit organization, IEEE is the world's largest technical professional organization dedicated to advancing technology for the benefit of humanity.
© Copyright 2025 IEEE - All rights reserved. Use of this web site signifies your agreement to the terms and conditions.

Test Whats new message.