Results 31 to 40 of about 3,158 (253)

A Potentiostat Readout Circuit with a Low-Noise and Mismatch-Tolerant Current Mirror Using Chopper Stabilization and Dynamic Element Matching for Electrochemical Sensors

Applied Sciences, 2021
This paper presents a potentiostat readout circuit with low-noise and mismatch-tolerant current mirror using chopper stabilization and dynamic element matching (DEM) for electrochemical sensors.
Kyeongsik Nam, Gyuri Choi, Hyungseup Kim, Mookyoung Yoo, Hyoungho Ko   +4 more
doaj   +1 more source

Use of chopper-notch modulator in chopper amplifiers for replica images cancellation [PDF]

2008 15th IEEE International Conference on Electronics, Circuits and Systems, 2008
A method for cancelling the replica image limiting the chopper stabilization technique is presented. The modulation of the 1/f noise at the chopping frequency and its multiple are conventionally reduced by a low-pass filter and, possibly by a notch filter.
Francesco Geusa, Andrea Agnes, Franco Maloberti   +2 more
openaire   +1 more source

An implantable epileptic signal detector with wireless charging and wireless communication

Dianzi Jishu Yingyong, 2018
An epileptic signal detector with wireless charging and wireless communication is proposed in this work, which can be used to build a closed-loop neurostimulator.
Qian Nixin, Zhu Yunfan, Shi Huan, Zhong Binbin, Wu Jinli, Wang Jie, Li Xiaolong   +6 more
doaj   +1 more source

Low-Noise Chopper-Stabilized Zero-Drift Amplifier With SAR-Assisted Automatic Offset Calibration Loop

IEEE Access, 2023
This paper presents a low-noise chopper-stabilized zero-drift amplifier with successive approximation register (SAR)-assisted automatic offset calibration loop (AOCL).
Gibae Nam, Gyuri Choi, Mookyoung Yoo, Sanggyun Kang, Byeongkwan Jin, Hyeoktae Son, Kyounghwan Kim, Jihyang Wi, Seungmin Ahn, Hyoungho Ko   +9 more
doaj   +1 more source

A 5.43 nV/√Hz Chopper Operational Amplifier Using Lateral PNP Input Stage with BJT Current Mirror Base Current Cancellation

Applied Sciences, 2020
This paper presents a low-noise chopper operational amplifier using a lateral PNP input stage with bipolar junction transistor (BJT) current mirror base current cancellation.
Hyungseup Kim, Yongsu Kwon, Donggeun You, Hyun-Woong Choi, Seong Hyun Kim, Hyunwoo Heo, Choul-Young Kim, Hi-Deok Lee, Hyoungho Ko   +8 more
doaj   +1 more source

Analysis of Sensitivity and Power Consumption of Chopping Techniques for Integrated Capacitive Sensor Interface Circuits

Journal of Low Power Electronics and Applications, 2017
In this paper, parameters related to the sensitivity of the interface circuits for capacitive sensors are determined. Both the input referred noise and capacitance of the input transistors are important for capacitive sensitivity.
Parisa Vejdani, Karim Allidina, Frederic Nabki   +2 more
doaj   +1 more source

Analysis and Design of High-Energy-Efficiency Amplifiers for Delta-Sigma Modulators

Active and Passive Electronic Components, 2023
This study presents a dynamic amplifier with high energy efficiency and high gain suitable for a delta-sigma modulator based on the floating-inverter amplifier (FIA), in-depth analysis of the existing FIA and its improved structure, and simulation ...
Jinze Lai, Yuxuan Lin, Gumeng Zhao, Lijie Huang, Cong Wei, Rongshan Wei, Wei Hu   +6 more
doaj   +1 more source

A Low-Power, Low-Noise, Resistive-Bridge Microsensor Readout Circuit with Chopper-Stabilized Recycling Folded Cascode Instrumentation Amplifier

Applied Sciences, 2021
In this paper, a low-power and low-noise readout circuit for resistive-bridge microsensors is presented. The chopper-stabilized, recycling folded cascode current-feedback instrumentation amplifier (IA) is proposed to achieve the low-power, low-noise, and
Gyuri Choi, Hyunwoo Heo, Donggeun You, Hyungseup Kim, Kyeongsik Nam, Mookyoung Yoo, Sangmin Lee, Hyoungho Ko   +7 more
doaj   +1 more source

Low-Noise Chopper-Stabilized Multi-Path Operational Amplifier with Nested Miller Compensation for High-Precision Sensors

Applied Sciences, 2019
This paper presents a low-noise multi-path operational amplifier for high-precision sensors. A chopper stabilization technique is applied to the amplifier to remove offset and flicker noise.
Jaesung Kim, Hyungseup Kim, Kwonsang Han, Donggeun You, Hyunwoo Heo, Yongsu Kwon, Dong-il “Dan” Cho, Hyoungho Ko   +7 more
doaj   +1 more source

A 55 V, Six-Channel Chopper and Auto-Zeroing Amplifier with 6.2 nV/$\sqrt{\mathbf{Hz}}$ Noise and −128 dB Total Harmonic Distortion

Eng
In this paper, a high-voltage chopper and ping-pong auto-zeroing operational amplifier was designed for industrial and automotive applications. Based on chopper stabilization, the proposed circuit introduces a novel chopper switch control signal that ...
Guolong Li, Guoqing Weng, Zhifeng Chen, Chenying Zhang, Shifan Wu, Chengying Chen   +5 more
doaj   +1 more source