Results 11 to 20 of about 3,714 (283)
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
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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
Chen-Mao Wu +3 more
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A Micropower Chopper—CDS Operational Amplifier [PDF]
IEEE Journal of Solid-State Circuits, 2010 A low-power spur-free precision amplifier, which uses input chopping and correlated double sampling for demodulation, is presented. This circuit employs an AC coupling between the first and the second stage that removes the first stage offset without causing ripple.
BELLONI, MASSIMILIANO +3 more
openaire +3 more sources
IEEE Journal of the Electron Devices SocietyIn this paper, a new architecture for glucose biosensors is proposed, which adopts a Chopper amplifier instead of a conventional instrumentation amplifier (INA) and differential extended gate field effect transistor (EGFET) as the input stage.
Po-Yu Kuo +10 more
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Applied Sciences, 2019 This paper presents a low-noise multi-path operational amplifier for high-precision sensors. A chopper stabilization technique is applied to the amplifier to remove offset and flicker noise.
Jaesung Kim +7 more
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Applied Sciences, 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.
Hyungseup Kim +8 more
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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,
Jamel Nebhen +2 more
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Ripple Suppression in Capacitive-Gain Chopper Instrumentation Amplifier Using Amplifier Slicing [PDF]
IEEE Transactions on Circuits and Systems I: 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 multiple identical slices. Before normal operation, the offset polarity of each slice is determined
Tsz Ngai Lin, Bo Wang 0012, Amine Bermak
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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
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Zero Drift Infrared Radiation Thermometer Using Chopper Stabilised Pre-Amplifier [PDF]
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 +2 more
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