A Chopper Stabilized Current-Feedback Instrumentation Amplifier for EEG Acquisition Applications [PDF]
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
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A Doherty Power Amplifier for Ultrasound Instrumentation
Sensors, 2023 The ultrasound instrumentation uses linear power amplifiers with low power efficiency, generating unwanted heat and resulting in the deterioration of the echo signal quality of measured targets.
Hojong Choi
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Low noise, open-source QEPAS system with instrumentation amplifier. [PDF]
Sci Rep, 2019 Quartz enhanced photoacoustic spectroscopy (QEPAS) is a rapidly developing, ultrasensitive method for trace gas sensing. Adequate electronic amplifier, well matched to the quartz characteristics is crucial for overall system performance.
Winkowski M, Stacewicz T.
europepmc +4 more sources
Design of Low Power and Low Noise Instrumentation Amplifier for Biopotential Acquisition: A Review
IEEE AccessThis paper presents a comprehensive review of amplifier design techniques for biomedical sensor implementation focusing on Capacitively Coupled Instrumentation Amplifier (CCIA).
Nahmil Koo
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A 130-dB CMRR Instrumentation Amplifier With Common-Mode Replication [PDF]
IEEE Journal of Solid-State Circuits, 2021 High common-mode rejection ratio (CMRR) of an analog front end (AFE) requires high intrinsic CMRR of the front-end amplifier with high input common-mode (CM) impedance.
Sanfeng Zhang +3 more
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Realization of OFCC based Transimpedance Mode Instrumentation Amplifier [PDF]
Advances in Electrical and Electronic Engineering, 2016 The paper presents an instrumentation amplifier suitable for amplifying the current source transducer signals. It provides a voltage output. It has a high gain, common mode rejection ratio and gain independent bandwidth.
Neeta Pandey +4 more
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EoG based Biopotential Instrumentation Amplifier [PDF]
E3S Web of Conferences, 2023 To examine the biomedical signals from the human body is of a challenging task. Signal acquisition of the biosignal needs proper design methodology with the estimation of consequences further.
Katikala Hima Bindu +7 more
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Chopper-Stabilized Instrumentation Amplifier with Automatic Frequency Tuning Loop [PDF]
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
Chen-Mao Wu +3 more
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Ripple Suppression in Capacitive-Gain Chopper Instrumentation Amplifier Using Amplifier Slicing [PDF]
IEEE Transactions on Circuits and Systems Part 1: Regular Papers, 2021 This paper proposes a power-up calibration scheme to mitigate the offset of a capacitive-gain chopper instrumentation amplifier (CCIA), thus suppressing the offset-induced output ripple. In this design, the first stage of the error amplifier is formed by
Tsz Ngai Lin, Bo Wang, Amine Bermak
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A Fully-Differential CMOS Instrumentation Amplifier for Bioimpedance-Based IoT Medical Devices
Journal of Low Power Electronics and Applications, 2022 The implementation of a fully-differential (FD) instrumentation amplifier (IA), based on indirect current feedback (ICF) and aimed to electrical impedance measurements in an Internet of Things (IoT) biomedical scenario, is presented.
Israel Corbacho +5 more
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