Results 21 to 30 of about 126,760 (143)

A CMOS chopper amplifier

IEEE Journal of Solid-State Circuits, 1986
This paper presents a CMOS chopper amplifier realized with a 2nd order low-pass selective amplifier, using continuous-time filtering technique. The circuit has been integrated in a 3 ?m p-well low-voltage CMOS technology. The chopper DC gain is 32 dB with 200 Hz bandwidth.
Christian Enz, Eric A. Vittoz, F. Krummenacher   +2 more
openaire   +2 more sources

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

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

Low-Noise Potentiostat Readout Circuit with a Chopper Fully Differential Difference Amplifier for Glucose Monitoring

Applied Sciences, 2022
This paper presents a low-noise potentiostat readout circuit with a chopper fully differential difference amplifier (FDDA) for glucose monitoring. Glucose monitoring is necessary for the early diagnosis of diabetes complications and for health management.
Gyuri Choi, Kyeongsik Nam, Mookyoung Yoo, Sanggyun Kang, Byeongkwan Jin, Kyounghwan Kim, Hyeoktae Son, Hyoungho Ko   +7 more
doaj   +1 more source

31.4 A Chopper-Stabilized Amplifier with -107dB IMD and 28dB Suppression of Chopper-Induced IMD

, 2021
Amplifiers often employ chopping to achieve low offset and low-frequency noise. However, the interaction between the input signal and the chopper clock can cause chopper-induced intermodulation distortion (IMD) [1] -[5].
Rooijers, C.T. (author), Kusuda, Yoshinori (author), Huijsing, J.H. (author), Karmakar, S. (author), Makinwa, K.A.A. (author)   +4 more
core   +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

Design of a 0.5 V Chopper-Stabilized Differential Difference Amplifier for Analog Signal Processing Applications

Sensors, 2023
This paper presents a low-voltage low-power chopper-stabilized differential difference amplifier (DDA) realized using 40 nm CMOS technology. Operating with a supply voltage of 0.5 V, a three-stage DDA has been employed to achieve an open-loop gain of 89 ...
Xinlan Fan, Feifan Gao, Pak Kwong Chan
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