Results 1 to 10 of about 56,805 (192)

Switched-Capacitor Filter Optimization with Respect to Switch On-State Resistance and Features of Real Operational Amplifiers [PDF]

Radioengineering, 2007
The optimization of a switched-capacitor filter, which implements a biquadratic section, is described in this paper. The aim of the optimization is to obtain a required magnitude frequency response of the filter.
J. Hospodka, L. Dolivka
doaj   +2 more sources

Acceleration for Efficient Automated Generation of Operational Amplifiers [PDF]

Sensors
Operational amplifiers (Op-Amps) are critical to sensor systems because they enable precise, reliable, and flexible signal processing. Current automated Op-Amp generation methods suffer from extremely low efficiency because the time-consuming SPICE-in ...
Zhenxin Zhao, Jun Liu, Lihong Zhang
doaj   +2 more sources

Analysis, Simulation, and Development of a Low-Cost Fully Active-Electrode Bioimpedance Measurement Module

Technologies, 2021
A low-cost 1 kHz–400 kHz operating frequency fully-active electrode bioimpedance measurement module, based on Howland current source, is presented in this paper.
Christos Dimas, Vassilis Alimisis, Ioannis Georgakopoulos, Nikolaos Voudoukis, Nikolaos Uzunoglu, Paul P. Sotiriadis   +5 more
doaj   +1 more source

Advances on CMOS Folded-Cascode Operational Transconductance [PDF]

AUT Journal of Electrical Engineering, 2022
In this paper, a tutorial review on several structural improvements of the CMOS folded-cascode Operational Transconductance Amplifier (OTA) is presented. After a brief discussion on the structure and operation of the conventional Folded-Cascode Amplifier,
Mohammad Yavari
doaj   +1 more source

Circuit Design Modernization of Operational Amplifiers for Increasing Slew Rate of Output Voltage

Doklady Belorusskogo gosudarstvennogo universiteta informatiki i radioèlektroniki, 2023
To meet the existing needs of the domestic market of radio electronic equipment in high-speed wideband operational amplifiers, it was previously proposed to use the MH2XA031 master slice array containing complementary bipolar transistors, together with ...
Ya. D. Galkin, O. V. Dvornikov, V. A. Tchekhovski, N. N. Prokopenko   +3 more
doaj   +1 more source

Second-Order Filters with Independent Setting and Adjustment of Basic Parameters

Vìsnik Nacìonalʹnogo Tehnìčnogo Unìversitetu Ukraïni Kììvsʹkij Polìtehnìčnij Ìnstitut: Serìâ Radìotehnìka, Radìoaparatobuduvannâ, 2023
A new topology of the second-order low-pass filter containing three operational amplifiers is proposed. As known, a feature of second-order filters based on operational amplifiers is the interdependence of the main filter parameters, such as the pole ...
R. V. Antypenko, I. M. Kyrpatenko, A. V. Movchanyuk, W. P. Fesich   +3 more
doaj   +1 more source

Hybrid Inverter-Based Fully Differential Operational Transconductance Amplifiers

Chips, 2023
Inverter-based Operational Transconductance Amplifiers (OTAs) are versatile and friendly scalable analog circuit blocks. Especially for the new CMOS technological nodes, several recent applications have been extensively using them, ranging from Analog ...
Luís Henrique Rodovalho, Pedro Toledo, Farzad Mir, Farshad Ebrahimi   +3 more
doaj   +1 more source

MINIMIZATION OF NOISE FLOOR LEVEL OF FIBER-OPTIC INTERFEROMETRIC SENSOR ARRAY BY ADJUSTMENT OF OPERATIONAL AMPLIFIER CASCADE PARAMETERS [PDF]

Научно-технический вестник информационных технологий, механики и оптики, 2019
Subject of Research. The paper presents results of the experimental study on the dependence of the noise floor level of a fiber-optic interferometric sensor array on the gain factor of operational amplifiers located on the signal processing board and ...
Matvey V. Bykadorov, Mikhail Yu. Plotnikov, Alexander Yu. Kireenkov, Alexander A. Makarenko   +3 more
doaj   +1 more source

Layout Optimizations of Operational Amplifiers in Deep Submicron [PDF]

International Journal of Electronics and Telecommunications, 2020
Operational amplifies (op amps) are an integral part of many analog and mixed-signal systems. Op amps with vastly different levels of complexity are used to realize functions ranging from DC bias generation to high-speed amplification or filtering.
Jun Shi
doaj   +1 more source

Digitally Programmable Integrator and Differentiator

Active and Passive Electronic Components, 1995
Digitally programmable integrator and differentiator circuits are presented. Each circuit uses at most one operational amplifier, two operational transconductance amplifiers, and one capacitor.
Abdulrahman Khalaf Al-Ali, Muhammad Taher Abuelma'atti, Syed Yunus   +2 more
doaj   +1 more source