Results 21 to 30 of about 62,185 (340)

Huddle test measurement of a near Johnson noise limited geophone [PDF]

open access: yes, 2017
In this paper, the sensor noise of two geophone configurations (L-22D and L-4C geophones from Sercel with custom built amplifiers) was measured by performing two huddle tests.
Balik G.   +17 more
core   +3 more sources

Multi-Function Active-Only High-Order Current-Driven Filter

open access: yesActive and Passive Electronic Components, 2000
A new multi-function high-order current-driven filter is proposed. The filter uses only operational amplifiers, and operational transconductance amplifiers (OTAs).
Muhammad Taher Abuelma'atti   +1 more
doaj   +1 more source

Modeling and Simulation of Monolithic Single-Supply Power Operational Amplifiers

open access: yesEnergies, 2021
In this paper a simple PSpice (Personal Simulation Program with Integrated Circuit Emphasis) macro-model was developed, and verified for monolithic power operational amplifiers operated with a single-supply voltage.
Ivailo Milanov Pandiev
doaj   +1 more source

An LMS Programming Scheme and Floating-Gate Technology Enabled Trimmer-Less and Low Voltage Flame Detection Sensor

open access: yesSensors, 2017
In this paper, a Least Mean Square (LMS) programming scheme is used to set the offset voltage of two operational amplifiers that were built using floating-gate transistors, enabling a 0.95 VRMS trimmer-less flame detection sensor.
Juan Carlos Iglesias-Rojas   +2 more
doaj   +1 more source

COMPARATIVE STUDY OF THE TEMPERATURE STABILITY OF THE TOOL AMPLIFIER [PDF]

open access: yesBiomedicinskaâ Inženeriâ i Èlektronika, 2017
The temperature stability of the instrumental and two-stage amplifiers based on the operational amplifier LM358 (STMicroelectronics) amplifiers is experimentally studied.
Bogush A.R. , Tihosova A.O.
doaj   +1 more source

Accurate Settling-Time Modeling and Design Procedures for Two-Stage Miller-Compensated Amplifiers for Switched-Capacitor Circuits [PDF]

open access: yes, 2009
We present modeling techniques for accurate estimation of settling errors in switched-capacitor (SC) circuits built with Miller-compensated operational transconductance amplifiers (OTAs).
Delgado Restituto, Manuel   +2 more
core   +1 more source

Simple Scheme for the Implementation of Low Voltage Fully Differential Amplifiers without Output Common-Mode Feedback Network

open access: yesJournal of Low Power Electronics and Applications, 2020
A simple scheme to implement class AB low-voltage fully differential amplifiers that do not require an output common-mode feedback network (CMFN) is introduced. It has a rail to rail output signal swing and high rejection of common-mode input signals. It
Mario Renteria-Pinon   +2 more
doaj   +1 more source

Implicit feed-forward compensated op-amp with split pairs [PDF]

open access: yes, 2017
Disclosed are systems implementing an implicit Feed-Forward Compensated (FFC) op-amp, where the main FFC port is realized by the P-side of the CMOS input structure of the 2nd and 3rd stages of the op-amp, while the main signal path is through the N-side.
Chiu, Yun, Wu, Bo
core   +1 more source

Generalized mixed-mode S-parameters [PDF]

open access: yes, 2006
This paper presents an innovative approach to extend the S-parameter definition to multiport networks having conventional single-ended and differential ports, as is the case for operational amplifiers, transformers and baluns.
Ferrero, Andrea Pierenrico   +1 more
core   +1 more source

Constant-amplitude, frequency- independent phase shifter [PDF]

open access: yes, 1971
Electronic circuit using operational amplifiers provides output with constant phase shift amplitude, with respect to sinusoidal input, over wide range of frequencies. New circuit includes field effect transistor, Q, operational amplifiers, A1 and A2, and
Deboo, G. J.
core   +1 more source

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