Results 21 to 30 of about 297,887 (290)
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
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Walailak Journal of Science and Technology, 2021 Biopotential signals are created as a result of the electrochemical activity of the many cells that comprise the nervous system, and they represent both normal and pathological organ function.
Ankit ADESARA, Amisha NAIK
doaj +3 more sources
IEEE Access, 2022 Resistive bridge sensors are used in many application areas to measure changes in physical parameters. To amplify the resistive changes from sensing elements with high precision, various offset contributors in the resistive bridge and amplifiers should ...
Mookyoung Yoo +5 more
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Use of chopper-notch modulator in chopper amplifiers for replica images cancellation [PDF]
2008 15th IEEE International Conference on Electronics, Circuits and Systems, 2008 A method for cancelling the replica image limiting the chopper stabilization technique is presented. The modulation of the 1/f noise at the chopping frequency and its multiple are conventionally reduced by a low-pass filter and, possibly by a notch filter.
Francesco Geusa +2 more
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Designing a Low-Power LNA and Filter for Portable EEG Acquisition Applications
IEEE Access, 2021 A circuit with a low-power low-noise amplifier and a Gm-C ultra-low-power filter is proposed in this paper for portable electroencephalogram (EEG) acquisition applications.
Marzieh Moradi +2 more
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Applied Sciences, 2020 This paper presents a low-noise reconfigurable sensor readout circuit with a multimodal sensing chain for voltage/current/resistive/capacitive microsensors such that it can interface with a voltage, current, resistive, or capacitive microsensor, and can ...
Donggeun You +10 more
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IEEE Journal of Solid-State Circuits, 1986 This paper presents a CMOS chopper amplifier realized with a 2nd order low-pass selective amplifier, using continuous-time filtering technique. The circuit has been integrated in a 3 ?m p-well low-voltage CMOS technology. The chopper DC gain is 32 dB with 200 Hz bandwidth.
Christian Enz +2 more
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Electronics, 2022 In this paper, a low-power and low-noise capacitive-coupled chopper instrumentation amplifier (CCIA) is proposed for biopotential sensing applications. A chopping technique is applied to mitigate the domination of flicker noise at low frequency.
Xuan Thanh Pham +3 more
semanticscholar +1 more source
Applied Sciences, 2021 This paper presents a potentiostat readout circuit with low-noise and mismatch-tolerant current mirror using chopper stabilization and dynamic element matching (DEM) for electrochemical sensors.
Kyeongsik Nam +4 more
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An implantable epileptic signal detector with wireless charging and wireless communication
Dianzi Jishu Yingyong, 2018 An epileptic signal detector with wireless charging and wireless communication is proposed in this work, which can be used to build a closed-loop neurostimulator.
Qian Nixin +6 more
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