4.7 Article

Analysis and Design of VCO-Based Neural Front-End With Mixed Domain Level-Crossing for Fast Artifact Recovery

Related references

Note: Only part of the references are listed.
Article Engineering, Electrical & Electronic

A Hybrid 1st/2nd-Order VCO-Based CTDSM With Rail-to-Rail Artifact Tolerance for Bidirectional Neural Interface

Huaiyu Liu et al.

Summary: This study investigates a VCO-based CTDSM for high dynamic range and large input range bi-directional brain machine interfaces. Stimulation artifact is detected and compensated using a phase counter, while high precision is achieved through digitization of the residue signal. Experimental results demonstrate the feasibility of the implemented system.

IEEE TRANSACTIONS ON CIRCUITS AND SYSTEMS II-EXPRESS BRIEFS (2022)

Article Computer Science, Hardware & Architecture

VCO-Based Comparator: A Fully Adaptive Noise Scaling Comparator for High-Precision and Low-Power SAR ADCs

Kentaro Yoshioka

Summary: This study introduces a VCO-based comparator that automatically adjusts its noise performance based on the input voltage difference, reducing power consumption in high-precision comparators of SAR ADCs. The comparator achieves a peak SNDR of 66 dB, demonstrating excellent performance in the 13-bit SAR ADC.

IEEE TRANSACTIONS ON VERY LARGE SCALE INTEGRATION (VLSI) SYSTEMS (2021)

Article Engineering, Electrical & Electronic

A 112-dB SFDR 89-dB SNDR VCO-Based Sensor Front-End Enabled by Background-Calibrated Differential Pulse Code Modulation

Jiannan Huang et al.

Summary: The design utilizes DPCM compression theory to substantially reduce the signal amplitude incident to the VCO quantizer, achieving ultra-low THD. Background digital gain calibration and dynamic element matching (DEM) techniques ensure robustness and high efficiency in achieving a high DR.

IEEE JOURNAL OF SOLID-STATE CIRCUITS (2021)

Article Engineering, Electrical & Electronic

A Bidirectional Neural Interface SoC With Adaptive IIR Stimulation Artifact Cancelers

Aria Samiei et al.

Summary: A 180-nm CMOS bidirectional neural interface system-on-chip allowing simultaneous recording and stimulation with on-chip artifact cancelers has been developed. The system effectively mitigates artifacts up to 700 mV(pp) and reduces amplifier saturation recovery time. By using adaptive filters and an LMS engine, the system achieves efficient artifact cancellation and faster feedback in front-end amplifiers.

IEEE JOURNAL OF SOLID-STATE CIRCUITS (2021)

Article Engineering, Biomedical

A Closed-Loop Neuromodulation Chipset With 2-Level Classification Achieving 1.5-Vpp CM Interference Tolerance, 35-dB Stimulation Artifact Rejection in 0.5ms and 97.8%-Sensitivity Seizure Detection

Yuwei Wang et al.

Summary: This study introduces an 8-channel closed-loop neuromodulation chipset with 2-level seizure classification. By activating the power-consuming fine classifier only when the patient's status is judged as suspected seizure, the overall power consumption is greatly reduced. The chipset demonstrates effective suppression of common-mode interference and stimulation artifacts, achieving high sensitivity in database testing.

IEEE TRANSACTIONS ON BIOMEDICAL CIRCUITS AND SYSTEMS (2021)

Article Engineering, Biomedical

A 108 dB DR Δ n-ary sumation - n-ary sumation M Front-End With 720 mVpp Input Range and >±300 mV Offset Removal for Multi-Parameter Biopotential Recording

Xiaolin Yang et al.

Summary: This paper presents a front-end architecture for recording biopotential signals that addresses challenges such as noise, electrode DC offset cancellation, and motion artifact tolerance by utilizing a Delta n-ary sumation modulator and an additional n-ary sumation stage. The prototype achieves high performance metrics, demonstrating the capability to acquire biopotential signals in the presence of large motion artifacts.

IEEE TRANSACTIONS ON BIOMEDICAL CIRCUITS AND SYSTEMS (2021)

Article Engineering, Electrical & Electronic

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

Wenda Zhao et al.

IEEE JOURNAL OF SOLID-STATE CIRCUITS (2020)

Article Engineering, Electrical & Electronic

Track-and-Zoom Neural Analog-to-Digital Converter With Blind Stimulation Artifact Rejection

M. Reza Pazhouhandeh et al.

IEEE JOURNAL OF SOLID-STATE CIRCUITS (2020)

Article Engineering, Electrical & Electronic

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

Xiyuan Tang et al.

IEEE JOURNAL OF SOLID-STATE CIRCUITS (2020)

Article Engineering, Electrical & Electronic

A 6.5-μW 10-kHz BW 80.4-dB SNDR Gm-C-Based CT ΔΣ Modulator With a Feedback-Assisted Gm Linearization for Artifact-Tolerant Neural Recording

Changuk Lee et al.

IEEE JOURNAL OF SOLID-STATE CIRCUITS (2020)

Article Engineering, Electrical & Electronic

A 61-nW Level-Crossing ADC With Adaptive Sampling for Biomedical Applications

Yuting Hou et al.

IEEE TRANSACTIONS ON CIRCUITS AND SYSTEMS II-EXPRESS BRIEFS (2019)

Article Engineering, Electrical & Electronic

A Continuous-Time Delta-Sigma Modulator Using a Modified Instrumentation Amplifier and Current Reuse DAC for Neural Recording

Antonios Nikas et al.

IEEE JOURNAL OF SOLID-STATE CIRCUITS (2019)

Article Engineering, Electrical & Electronic

A High DR, DC-Coupled, Time-Based Neural-Recording IC With Degeneration R-DAC for Bidirectional Neural Interface

Hyuntak Jeon et al.

IEEE JOURNAL OF SOLID-STATE CIRCUITS (2019)

Article Engineering, Biomedical

Continuous-Time Acquisition of Biosignals Using a Charge-Based ADC Topology

Michal Maslik et al.

IEEE TRANSACTIONS ON BIOMEDICAL CIRCUITS AND SYSTEMS (2018)

Article Engineering, Electrical & Electronic

A Pulse Frequency Modulation Interpretation of VCOs Enabling VCO-ADC Architectures With Extended Noise Shaping

Eric Gutierrez et al.

IEEE TRANSACTIONS ON CIRCUITS AND SYSTEMS I-REGULAR PAPERS (2018)

Article Engineering, Electrical & Electronic

A 1-to-1-kHz, 4.2-to-544-nW, Multi-Level Comparator Based Level-Crossing ADC for IoT Applications

Yuting Hou et al.

IEEE TRANSACTIONS ON CIRCUITS AND SYSTEMS II-EXPRESS BRIEFS (2018)

Article Engineering, Electrical & Electronic

Sub-mu V-rms-Noise Sub-mu W/Channel ADC-Direct Neural Recording With 200-mV/ms Transient Recovery Through Predictive Digital Autoranging

Chul Kim et al.

IEEE JOURNAL OF SOLID-STATE CIRCUITS (2018)

Article Engineering, Electrical & Electronic

A 15.2-ENOB 5-kHz BW 4.5-μW Chopped CT ΔΣ-ADC for Artifact-Tolerant Neural Recording Front Ends

Hariprasad Chandrakumar et al.

IEEE JOURNAL OF SOLID-STATE CIRCUITS (2018)

Article Computer Science, Hardware & Architecture

A 2.7-μW Neuromodulation AFE With 200 mVpp Differential-Mode Stimulus Artifact Canceler Including On-Chip LMS Adaptation

Seobin Jung et al.

IEEE SOLID-STATE CIRCUITS LETTERS (2018)

Article Engineering, Electrical & Electronic

Rail-to-Rail-Input Dual-Radio 64-Channel Closed-Loop Neurostimulator

Hossein Kassiri et al.

IEEE JOURNAL OF SOLID-STATE CIRCUITS (2017)

Article Engineering, Electrical & Electronic

Analysis and Design of Continuous-Time Delta-Sigma Converters Incorporating Chopping

Sujith Billa et al.

IEEE JOURNAL OF SOLID-STATE CIRCUITS (2017)

Article Multidisciplinary Sciences

New Types of Experiments Reveal that a Neuron Functions as Multiple Independent Threshold Units

Shira Sardi et al.

SCIENTIFIC REPORTS (2017)

Article Engineering, Electrical & Electronic

A Bidirectional Neural Interface Circuit With Active Stimulation Artifact Cancellation and Cross-Channel Common-Mode Noise Suppression

Adam E. Mendrela et al.

IEEE JOURNAL OF SOLID-STATE CIRCUITS (2016)

Article Engineering, Electrical & Electronic

An Ultra-Low Voltage Level Shifter Using Revised Wilson Current Mirror for Fast and Energy-Efficient Wide-Range Voltage Conversion from Sub-Threshold to I/O Voltage

Jun Zhou et al.

IEEE TRANSACTIONS ON CIRCUITS AND SYSTEMS I-REGULAR PAPERS (2015)

Article Engineering, Electrical & Electronic

A Scaling-Friendly Low-Power Small-Area ΔΣ ADC With VCO-Based Integrator and Intrinsic Mismatch Shaping Capability

Kyoungtae Lee et al.

IEEE JOURNAL ON EMERGING AND SELECTED TOPICS IN CIRCUITS AND SYSTEMS (2015)

Article Engineering, Electrical & Electronic

An Event-driven Clockless Level-Crossing ADC With Signal-Dependent Adaptive Resolution

Colin Weltin-Wu et al.

IEEE JOURNAL OF SOLID-STATE CIRCUITS (2013)

Article Engineering, Electrical & Electronic

Measurement and Analysis of Current Noise in Chopper Amplifiers

Jiawei Xu et al.

IEEE JOURNAL OF SOLID-STATE CIRCUITS (2013)

Article Engineering, Biomedical

A Sub-Microwatt Asynchronous Level-Crossing ADC for Biomedical Applications

Yongjia Li et al.

IEEE TRANSACTIONS ON BIOMEDICAL CIRCUITS AND SYSTEMS (2013)

Article Engineering, Electrical & Electronic

An Adaptive Resolution Asynchronous ADC Architecture for Data Compression in Energy Constrained Sensing Applications

Michael Trakimas et al.

IEEE TRANSACTIONS ON CIRCUITS AND SYSTEMS I-REGULAR PAPERS (2011)

Article Engineering, Electrical & Electronic

Event-Driven Data Acquisition and Digital Signal Processing-A Tutorial

Yannis Tsividis

IEEE TRANSACTIONS ON CIRCUITS AND SYSTEMS II-EXPRESS BRIEFS (2010)

Article Computer Science, Artificial Intelligence

Unsupervised spike detection and sorting with wavelets and superparamagnetic clustering

RQ Quiroga et al.

NEURAL COMPUTATION (2004)

Article Engineering, Electrical & Electronic

Virtual damping and Einstein relation in oscillators

D Ham et al.

IEEE JOURNAL OF SOLID-STATE CIRCUITS (2003)