A Chopper Stabilized Current-Feedback Instrumentation Amplifier for EEG Acquisition Applications
IEEE Access, 2019 A low-noise, low-power, chopper-stabilized, current-feedback instrumentation amplifier (CFIA) for bio-potential signal acquisition applications is presented. The proposed design includes an ac-coupled chopper-stabilized CFIA to reduce 1/f noise.
Chung-Jae Lee, Jong-In Song
exaly +3 more sources
Applied Sciences (Switzerland), 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.
Hyoungho Ko +2 more
exaly +3 more sources
A Chopper-Stabilized Amplifier With a Tunable Bandwidth for EEG Acquisition Applications
IEEE Access, 2019 A chopper-stabilized amplifier for bio-potential signal acquisition applications is presented. The proposed design includes an AC-coupled chopper-stabilized amplifier to reduce the 1/f noise and a tunable MOS-capacitor and a tunable pseudo-resistor to ...
Chung-Jae Lee, Jong-In Song
exaly +3 more sources
A Time-Differential BOCDA Sensor Measurement System Applied to a 1 km Long SMF Using a Semiconductor Optical Amplifier as a Pump Chopper. [PDF]
Sensors (Basel)A time-differential (TD) Brillouin optical correlation domain analysis (BOCDA) sensor system was applied to measure the Brillouin gain spectrum of a 1 km long sensing optical fiber.
Choi BH.
europepmc +2 more sources
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, Kha Hoang
exaly +3 more sources
A 35 nV/√Hz Analog Front-End Circuit with Adjustable Bandwidth and Gain in UMC 40 nm CMOS for Biopotential Signal Acquisition [PDF]
SensorsThis paper presents a 35 nV/√Hz analog front-end (AFE) circuitdesigned in the UMC 40 nm CMOS technology for the acquisition of biopotential signal. The proposed AFE consists of a capacitive-coupled instrumentation amplifier (CCIA) and a combination of a ...
Lu Liu +5 more
doaj +2 more sources
A Low-Noise Amplifier for Submarine Electric Field Signal Based on Chopping Amplification Technology [PDF]
SensorsIn the exploration of ocean resources, the submarine electric field signal plays a crucial role through marine electromagnetic methods. However, due to the field signal’s low-frequency and weak characteristics, it often encounters interference from the ...
Fenghai Liu +4 more
doaj +2 more sources
Applied SciencesThis paper proposes a three-stage op amp based on the SOI (silicon-on-insulator) process, which achieves a low offset voltage and temperature coefficient across a wide temperature range from −40 °C to 250 °C.
Zhong Yang +5 more
doaj +2 more sources
A 5.5 μW 42 nV/√Hz Chopper stabilized Amplifier for Biomedical Application with Input Impedance Enhancement [PDF]
International Journal of Electronics and Telecommunications, 2021 The continuous real-time monitoring of diverse physical parameters using biosignals like ECG and EEG requires the biomedical sensors. Such sensor consists of analog frontend unit for which low noise and low power Operational transconductance amplifier ...
Ankit Adesara, Amisha Naik
doaj +1 more source
Current-Feedback Instrumentation Amplifier Using Dual-Chopper Fill-In Technique
Applied Sciences, 2022 In this study, we describe a dual-chopper glitch-reduction current-feedback instrumentation amplifier (CFIA) with a ripple reduction loop. The amplifier employs the chopping technique to reduce low-frequency noise, such as 1/f noise.
Gyuri Choi +7 more
doaj +1 more source