Results 31 to 40 of about 126,760 (143)

A Low Noise Multipath Chopper-Stabilized Operational Amplifier Using Dynamic Element Matching Gain-Boosting and Low Input Current Adaptive Clock-Boosting Chopper Switch

IEEE Access
This paper presents a low noise multipath operational amplifier with chopper-stabilized and gain-boosted low-frequency path (LFP) amplifier. The LFP amplifier adopts the gain-boosting using dynamic element matching (DEM) and buffered adaptive clock ...
Mookyoung Yoo, Gibae Nam, Minhyeok Son, Manhyuck Choi, Inju Yu, Dahyun Jin, Euiyoung Lee, Hajun Bin, Hyoungho Ko   +8 more
doaj   +1 more source

A 50nV/√Hz 2‐channel time multiplexed bio‐chopper amplifier with current‐attenuated feedback resistor

Electronics Letters, 2022
This paper presents 2‐channel time‐multiplexed chopper instrument amplifier for better gain accuracy and mismatch. Mostly, the current‐attenuated feedback resistor with a duty‐cycled resistor is adopted for boosting the RC time constant.
Beomjin Yuk, Byeongseol Kim, Joonsung Bae   +2 more
doaj   +1 more source

Ultra-Low Power Programmable Bandwidth Capacitively-Coupled Chopper Instrumentation Amplifier Using 0.2 V Supply for Biomedical Applications

Journal of Low Power Electronics and Applications, 2023
This paper presents a capacitively coupled chopper instrumentation amplifier (CCIA) with ultra-low power consumption and programmable bandwidth for biomedical applications.
Xuan Thanh Pham, Xuan Thuc Kieu, Manh Kha Hoang   +2 more
doaj   +1 more source

A Dynamic Instrumentation Amplifier for Low-Power and Low-Noise Biopotential Acquisition

Sensors, 2016
A low-power and low-noise dynamic instrumentation amplifier (IA) for biopotential acquisition is presented. A dynamic IA that can reduce power consumption with a timely piecewise power-gating method, and noise level with an alternating input and chopper ...
Jongpal Kim, Hyoungho Ko
doaj   +1 more source

A chopper amplifier with adaptive biasing OTA for biomedical applications, featuring high gain and CMRR.

PLoS ONE
This paper presents a design of fully differential chopper amplifier employing the flipped voltage follower (FVF) adaptive biasing technique, focusing on its potential use in biopotential recording applications.
Bhaskara Rao Kasipogula, Gurumurthy Komanapalli   +1 more
doaj   +1 more source

A low-power chopper bandpass amplifier for biopotential sensors

, 2016
A low-power low-noise chopper operational amplifier for biosensor applications is proposed. It employs a simple ripple suppression method using a band-pass amplifier. The input referred noise is only 43nV/rtHz. Fabricated in a 130nm standard CMOS process,
Tsui, Chi Ying, Jiawei Zheng, Ki, Wing Hung, Zheng, Jiawei, Wing-Hung Ki, Chi-Ying Tsui   +5 more
core   +1 more source

A fully differential capacitively-coupled high CMRR low-power chopper amplifier for EEG dry electrodes [PDF]

, 2020
The use of dry electrodes is increasing rapidly. Since their impedance is high, there is a high impedance node at the connecting node between the electrode and amplifier.
Ytterdal, Trond, Molinas Cabrera, Maria Marta, Habibzadeh Tonekabony Shad, Erwin   +2 more
core   +2 more sources

Zero Drift Infrared Radiation Thermometer Using Chopper Stabilised Pre-Amplifier

Applied Sciences, 2020
A zero-drift, mid–wave infrared (MWIR) thermometer constructed using a chopper stabilised operational amplifier (op-amp) was compared against an identical thermometer that utilised a precision op-amp.
Andrew D. Heeley, Matthew J. Hobbs, Jon R. Willmott   +2 more
doaj   +1 more source

Low-Noise, Low-Power Readout IC for Two-Electrode ECG Recording Using Common-Mode Charge Pump for Robust 20-V_PP Common-Mode Interference

Applied Sciences, 2022
A low-noise and -power readout integrated circuit (IC) for two-electrode electrocardiogram (ECG) recording is developed in this study using a common-mode charge pump (CMCP) for a robust 20-VPP common-mode interference (CMI).
Kyeongsik Nam, Gyuri Choi, Mookyoung Yoo, Sanggyun Kang, Byeongkwan Jin, Hyeoktae Son, Kyounghwan Kim, Hyoungho Ko   +7 more
doaj   +1 more source

Design of sigma-delta modulator 10-16 bits for resolver digital converter

Dianzi Jishu Yingyong, 2022
In this paper, a sigma-delta modulator for 10-16 bit resolver digital converter is designed. The modulator is a second-order structure. On this basis, a chopper modulator circuit is added to eliminate the flicker noise.
Gu Jun, Zhang Guohua, Zhu Xiaoyu
doaj   +1 more source