Results 211 to 220 of about 297,887 (290)
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IEEE Journal of Solid-State Circuits, 2023
This article presents a chopper-stabilized multipath current-feedback instrumentation amplifier (CFIA) that can also be reconfigured to a general-purpose operational amplifier (OPA).
Tianxiang Qu +5 more
semanticscholar +1 more source
This article presents a chopper-stabilized multipath current-feedback instrumentation amplifier (CFIA) that can also be reconfigured to a general-purpose operational amplifier (OPA).
Tianxiang Qu +5 more
semanticscholar +1 more source
A 1.8-GΩ Input Impedance 45-dB Ripple Reduction Factor Chopper Amplifier for Biomedical Recording
International Conference on Autonomic and Trusted Computing, 2023The chopping technique is widely used in biomedical amplifiers to create a biomedical chopper amplifier (BiCA) which achieves high noise efficiency. However, this approach brings some critical disadvantages to BiCA, such as: (1) output ripple appearance;
X. Tran +5 more
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Noise Analysis and Simulation of Chopper Amplifier [PDF]
APCCAS 2006 - 2006 IEEE Asia Pacific Conference on Circuits and Systems, 2006 Conventional SPICE-like simulators are not adequate for the noise simulation of the chopper amplifier, which typically has no DC operating point. This paper discusses the noise properties of the chopper amplifier in both time domain and frequency domain and presents a method of simulating chopper amplifier noise behavior with the RF simulator?SpectreRF.
Tao Yin +3 more
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A chopper amplifier with a pseudo MOS resistor-based tunable bandwidth for EEG applications
Microelectronics international, 2023Purpose The purpose of chopper amplifier is to provide the wideband frequency to support biomedical signals. Design/methodology/approach This paper proposes a chopper-stabilized amplifier with a cascoded operational transconductance amplifier.
Amrita Sajja, S. Rooban
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A High Gain and High CMRR Chopper Amplifier Using Current Splitting OTA for Biomedical Applications
2023 International Conference on Next Generation Electronics (NEleX), 2023This paper proposes a capacitively-coupled current splitting OTA designed specifically for biomedical recording applications, focusing on achieving power efficiency, low noise, and high swing. The utilization of contemporary current splitting and current
Bhaskara Rao Kasipogula +2 more
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IEEE Custom Integrated Circuits Conference, 2022
Many sensors exhibit output impedances greater than a few MΩ, and the subsequent instrumentation amplifier (IA) must be carefully designed to meet the requirements of high input impedance $(\mathrm{R}_{\text{in}})$, low noise and low offset.
Tianxiang Qu +4 more
semanticscholar +1 more source
Many sensors exhibit output impedances greater than a few MΩ, and the subsequent instrumentation amplifier (IA) must be carefully designed to meet the requirements of high input impedance $(\mathrm{R}_{\text{in}})$, low noise and low offset.
Tianxiang Qu +4 more
semanticscholar +1 more source
A 1.9 µW 127 n V/ √Hz Bio Chopper Amplifier Using a Noise-Efficient Common Mode Cancelation Loop
International Conference on Autonomic and Trusted Computing, 2022Electrical neural stimulation (ENS) is widely used for implantable applications to convey information to nervous tissue. However, ENS will generate large common (CM) artifacts at the electrode tissue, leading to saturate the traditional biopotential ...
Xuan Thanh Pham +5 more
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Analysis of a Chopper Amplifier [PDF]
IETE Journal of Research, 1970 Choppers are often required for obtaining low drift performance of low level d.c. amplifiers. The chopper amplifier basically consists of a modulator, an a.c. amplifier, a synchronous demodulator and a low pass filter. The drift-free performance results from the use of the ‘drift-less’ a.c. amplifier for amplification.The a.c.
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A Chopper Amplifier with Low Offset and Low Noise for Temperature Controllers
International Conference on Information Communication and Management, 2022For high precision integrated temperature controllers, the low frequency noise and offset voltage will affect the accuracy. The chopper stabilization technology can eliminate the offset and 1/f noise through modulation, transfer and filtering signal ...
Yifan Hu +4 more
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Low-Noise Chopper Amplifier Using Lateral PNP Input Stage With Automatic Base Current Cancellation
IEEE Transactions on Circuits and Systems - II - Express Briefs, 2021This brief presents a low-noise chopper amplifier that uses a lateral PNP input stage with automatic base current cancellation in complementary metal–oxide–semiconductor (CMOS) process.
Hyungseup Kim +8 more
semanticscholar +1 more source