Results 61 to 70 of about 3,824 (171)

An Ultra High CMRR Low Voltage Low Power Fully Differential Current Operational Amplifier (COA)

Iranian Journal of Electrical and Electronic Engineering, 2015
this paper presents a novel fully differential (FD) ultra high common mode rejection ratio (CMRR) current operational amplifier (COA) with very low input impedance.
A. Roohavar, S. J. Azhari
doaj  

Noise Figure Measurement of Differential Amplifiers Using non-Ideal Baluns [PDF]

, 2011
This paper analyzes the noise and gain measurement of microwave differential amplifiers using two passive baluns. A general model of the baluns is considered, including potential losses and phase/amplitude unbalances.
García Muñoz, Luis Enrique, García Pérez, Oscar Alberto, González Posadas, Vicente, Segovia Vargas, Daniel   +3 more
core   +2 more sources

A Single‐Stage Differential Amplifier Using Organic Electrochemical Transistors

Advanced Electronic Materials, Volume 11, Issue 9, June 2025.
A three‐transistor differential amplifier using depletion‐mode organic electrochemical transistors is implemented that offers a common‐mode rejection ratio of up to ≈20 dB. Compared to a Wheatstone bridge amplifier, ECG recordings with this amplifier showed improved signal‐to‐noise ratio, gain, and power consumption.
Farnaz Fahimi Hanzaee, Ivan B. Dimov, Luke W. Gatecliff, Richard H. Bayford, George G. Malliaras, Andreas Demosthenous, Nick de N. Donaldson   +6 more
wiley   +1 more source

Qubit compatible superconducting interconnects

, 2017
We present a fabrication process for fully superconducting interconnects compatible with superconducting qubit technology. These interconnects allow for the 3D integration of quantum circuits without introducing lossy amorphous dielectrics.
Arya, K., Barends, R., Burkett, B., Chen, Yu, Chen, Zijun, Chiaro, B., Dunsworth, A., Fowler, A., Foxen, B., Gidney, C., Giustina, M., Graff, R., Huang, T., Jeffrey, E., Kelly, J., Klimov, P., Lucero, E., Martinis, John M., Megrant, A., Mutus, J. Y., Neeley, M., Neill, C., Quintana, C., Roushan, P., Sank, D., Vainsencher, A., Wenner, J., White, T. C., Yang, Yan, Yu, Anthony   +29 more
core   +1 more source

Heteroepitaxial (111) Diamond Quantum Sensors with Preferentially Aligned Nitrogen‐Vacancy Centers for an Electric Vehicle Battery Monitor

Advanced Quantum Technologies, Volume 8, Issue 4, April 2025.
(111) diamond sensor fabricated by heteroepitaxial chemical vapor deposition (CVD) process and adhered on top of an optical fiber and sensor holder with tilt correction mechanism to adjust the misorientation of the diamond sensor. Abstract A platform for heteroepitaxial (111) chemical vapor deposition (CVD) diamond quantum sensors with preferentially ...
Kenichi Kajiyama, Moriyoshi Haruyama, Yuji Hatano, Hiromitsu Kato, Masahiko Ogura, Toshiharu Makino, Hitoshi Noguchi, Takeharu Sekiguchi, Takayuki Iwasaki, Mutsuko Hatano   +9 more
wiley   +1 more source

Common-mode rejection in Martin-Puplett spectrometers for astronomical observations at mm-wavelengths

, 2015
The Martin-Puplett interferometer (MPI) is a differential Fourier transform spectrometer (FTS), measuring the difference between spectral brightness at two input ports.
D'Alessandro, Giuseppe, de Bernardis, Paolo, Masi, Silvia, Schillaci, Alessandro   +3 more
core   +1 more source

A True 1V 1µW Biomedical Front End with Reconfigurable ADC for Self powered Smarter IoT Healthcare Systems [PDF]

, 2015
This work proposes an ultralow power highly linear analog front-end (AFE) with an input dynamic range from 200μVpp to 20mVpp. The system consists of a signal conditioning instrumentation amplifier (IA), two programmable gain amplifiers (PGA), a mixed ...
Dutta, Asudeb, Naik, J, Patra, P, Yadav, K   +3 more
core   +2 more sources

Brain–computer interfaces in 2023–2024

Brain‐X, Volume 3, Issue 1, March 2025.
Research on invasive and non‐invasive brain–computer interfaces (BCIs) is developing rapidly, especially in the field of medicine. This article reviews BCI software, hardware, related neural mechanisms, and clinical applications. The principles of invasive and non‐invasive BCI differ; however, it is widely used in various scenarios.
Shugeng Chen, Mingyi Chen, Xu Wang, Xiuyun Liu, Bing Liu, Dong Ming   +5 more
wiley   +1 more source

Design of an SAR-Assisted Offset-Calibrated Chopper CFIA for High-Precision 4–20 mA Transmitter Front Ends

Applied Sciences
In loop-powered 4–20 mA transmitter systems, sensors like temperature, pressure, flow, and gas sensors are chosen based on specific application requirements.
Jian Ren, Yiqun Niu, Bin Liu, Meng Li, Yansong Bai, Yuang Chen   +5 more
doaj   +1 more source

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, Hsiao-Chin Chen, Ming-Yu Yen, San-Ching Yang   +3 more
doaj   +1 more source