Results 21 to 30 of about 299,019 (288)
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
Applied Sciences (Switzerland), 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.
Hyoungho Ko +2 more
exaly +3 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 Chopper Stabilization Audio Instrumentation Amplifier for IoT Applications
Journal of Low Power Electronics and Applications, 2020 A low-noise instrumentation amplifier dedicated to a nano- and micro-electro-mechanical system (M&NEMS) microphone for the use in Internet of Things (IoT) applications is presented. The piezoresistive sensor and the electronic interface are respectively,
Pietro Maris Ferreira +2 more
exaly +3 more sources
Chopper-Stabilized Instrumentation Amplifier with Automatic Frequency Tuning Loop
Micromachines, 2018 A variable-gain chopper-stabilized instrumentation amplifier (chopper IA), which employs a low pass filter (LPF) to attenuate the up-converted noise at the chopping frequency, is presented. The circuit is designed and fabricated with Taiwan Semiconductor
Ming-Yu Yen, Hsiao Chin Chen
exaly +3 more sources
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
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
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