Results 31 to 40 of about 2,156 (154)

An active balun for high-CMRR IC design [PDF]

2005 European Microwave Conference, 2005
A circuit topology that provides large bandwidth single-ended to differential conversion is presented. The proposed cell is based on a differential pair where feedback on common mode signal provides about 6 dB conversion gain increase, together with attenuation of common mode signal.
CENTURELLI, Francesco, R. LUZZI, MARIETTI, Piero, SCOTTI, Giuseppe, TOMMASINO, PASQUALE, TRIFILETTI, Alessandro   +5 more
openaire   +4 more sources

Low Noise Balanced Homodyne Detector for Quantum Noise Measurement

IEEE Access, 2022
The research of quantum noise in the interaction of laser and atoms plays a critical role in quantum optical experiments. The measurement of quantum noise is mainly based on the balanced homodyne detection method.
Shubo Lang, Shicheng Zhang, Xiaolin Li, Yueping Niu, Shangqing Gong   +4 more
doaj   +1 more source

±0.3V Bulk-Driven Fully Differential Buffer with High Figures of Merit

Journal of Low Power Electronics and Applications, 2022
A high performance bulk-driven rail-to-rail fully differential buffer operating from ±0.3V supplies in 180 nm CMOS technology is reported. It has a differential–difference input stage and common mode feedback circuits implemented with no-tail, high CMRR ...
Manaswini Gangineni, Jaime Ramirez-Angulo, Héctor Vázquez-Leal, Jesús Huerta-Chua, Antonio J. Lopez-Martin, Ramon Gonzalez Carvajal   +5 more
doaj   +1 more source

Current-feedback operational amplifier with high CMRR

Electronics Letters, 2003
A novel current-feedback operational amplifier, the input stage of which is based on the design and use in a repeated pattern of a current-transfer cell, exhibits performance characteristics superior to those obtained with an established input architecture: in particular, the common-mode rejection ratio (CMRR) is 105 dB, and the DC offset voltage less ...
A.A. Tammam, K. Hayatleh, B. Hart, F.J. Lidgey   +3 more
openaire   +1 more source

Stress, Personality, Attachment, and Coping Strategies During the COVID-19 Pandemic: The STERACOVID Prospective Cohort Study Protocol

Frontiers in Psychiatry, 2022
BackgroundDue to the lockdown linked to the COVID-19 pandemic, the French National Authority for Health has recommended reinforced follow-up of psychiatric patients, with particular attention to people over 65 years.
Arlette Edjolo, Arlette Edjolo, Jean-Michel Dorey, Mathieu Herrmann, Catherine Perrot, Cécile Lebrun-Givois, Aurélie Buisson, Hanane El Haouari, Bernard Laurent, Bernard Laurent, Elodie Pongan, Isabelle Rouch, Isabelle Rouch, Isabelle Rouch   +13 more
doaj   +1 more source

CMRR-Bandwidth Extension Technique for CMOS Differential Amplifiers [PDF]

AEU - International Journal of Electronics and Communications, 2014
An exemplary design demonstrates how to extend the common-mode rejection ratio (CMRR) bandwidth of a CMOS differential amplifier. The design presented uses MOSFETs with a channel length of 180nm. A novel circuit technique is employed that partially compensates for the output capacitance of the tail current sink, thereby more than quadrupling the CMRR ...
Ben-Esmael, M, Hart, B, Hayatleh, K
openaire   +3 more sources

High CMRR CMOS current operational amplifier

Electronics Letters, 1994
A CMOS realisation of a current operational amplifier operating under 3 V supply voltage is presented. The proposed implementation provides very high common-mode rejection. Results of HSPICE simulation show a high open loop current gain of 67 dB, a gain-bandwidth product of ~100 MHz and a common-mode rejection ratio of 150 dB.
E. Abou-Allam, E.I. El-Masry
openaire   +1 more source

CMRR analysis of instrumentation amplifiers

Electronics Letters, 1983
A set of the simple and practical expressions for the CMRR of instrumentation amplifiers (IAs) based on 2, 3 and 4 opamps is given. These equations take into account not only mismatch of determined resistors but also the limited value of the CMRR of op-amps used. The derived equations are very useful for tolerance analysis which is shown on the example
openaire   +1 more source

Low-voltage high CMRR OTA for electrophysiological measurements [PDF]

2009 IEEE International Symposium on Circuits and Systems, 2009
With the advent of miniaturised sensors for various engineering and medical applications there is an increased demand of low-power, low-voltage analog building blocks like opamps and OTAs. Degradation of certain amplifier characteristics with supply voltage is a major concern for low-voltage design and often poses contradictory requirement.
Mitra, S, Zele, R, Etienne-Cummings, R
openaire   +1 more source

Timing Is Everything: How Subtle Timing Changes in MRI Echo Planar Imaging Can Significantly Alter Mechanical Vibrations and Sound Level

Magnetic Resonance in Medicine, EarlyView.
ABSTRACT Purpose Echo‐Planar Imaging (EPI) is central to fMRI, diffusion MRI, and many dynamic clinical applications, yet rapid gradient switching induces strong mechanical vibrations, generates acoustic noise, and contributes to ghosting artifacts—effects that intensify at ultra‐high fields.
Amir Seginer, Alexander Bratch, Shahar Goren, Edna Furman‐Haran, Noam Harel, Essa Yacoub, Rita Schmidt   +6 more
wiley   +1 more source