Results 21 to 30 of about 238,857 (343)

FET input voltage amplifier for low frequency noise measurements

open access: yesMetrology and Measurement Systems, 2020
The paper presents a low noise voltage FET amplifier for low frequency noise measurements. It was built using two stages of an op amp transimpedance amplifier.
Krzysztof Achtenberg   +2 more
doaj   +1 more source

Аdaptive broadband low-noise RF amplifier

open access: yesДоклады Белорусского государственного университета информатики и радиоэлектроники, 2020
Adaptive broadband low-noise radio frequency amplifiers (ABLNRFA) are widely used in the construction of systems for protecting radio receiving paths from nonlinear damage in a non-stationary electromagnetic environment (EME).
I. Yu. Malevich, P. V. Zayats
doaj   +1 more source

Designing a Low-Power LNA and Filter for Portable EEG Acquisition Applications

open access: yesIEEE Access, 2021
A circuit with a low-power low-noise amplifier and a Gm-C ultra-low-power filter is proposed in this paper for portable electroencephalogram (EEG) acquisition applications.
Marzieh Moradi   +2 more
doaj   +1 more source

Noise-optimized ultrastable low-noise current amplifier [PDF]

open access: yesReview of Scientific Instruments, 2019
We have developed a noise-optimized ultrastable low-noise current amplifier (ULCA) aimed at reducing the uncertainty at low currents. It involves a thin-film resistor network with 6.75 GΩ at the high-ohmic path which reduces the noise level to 1.6 fA/Hz. Noise investigations as well as short-term and long-term stability studies were carried out.
C. Krause   +3 more
openaire   +2 more sources

Novel Low Noise Amplifier for Neural Signals Based on STT-MTJ Spintronic Device

open access: yesIEEE Access, 2019
Low noise amplifier is generally adopted in brain-machine interface (BMI) for the purpose of the extraction of action potentials of neural signals from the Local Field Potentials (LFPs).
Guangchen Pan   +3 more
doaj   +1 more source

A Chopper Stabilization Audio Instrumentation Amplifier for IoT Applications

open access: yesJournal of Low Power Electronics and Applications, 2020
A low-noise instrumentation amplifier dedicated to a nano- and micro-electro-mechanical system (M&NEMS) microphone for the use in Internet of Things (IoT) applications is presented. The piezoresistive sensor and the electronic interface are respectively,
Jamel Nebhen   +2 more
doaj   +1 more source

Low-Noise Chopper-Stabilized Zero-Drift Amplifier With SAR-Assisted Automatic Offset Calibration Loop

open access: yesIEEE Access, 2023
This paper presents a low-noise chopper-stabilized zero-drift amplifier with successive approximation register (SAR)-assisted automatic offset calibration loop (AOCL).
Gibae Nam   +9 more
doaj   +1 more source

Analysis of Discrete-Time Integrating Amplifiers as an Alternative to Continuous-Time Amplifiers in Broadband Receivers

open access: yesIEEE Open Journal of Circuits and Systems, 2023
Recent advancements in low power and low noise front-end amplifiers have made it possible to support high-speed data transmission within the deep roll-off regions of conventional wireline channels.
Yudhajit Ray, Shreyas Sen
doaj   +1 more source

Matched wideband low-noise amplifiers for radio astronomy [PDF]

open access: yes, 2009
Two packaged low noise amplifiers for the 0.3–4 GHz frequency range are described. The amplifiers can be operated at temperatures of 300–4 K and achieve noise temperatures in the 5 K range (
Bardin, J.   +3 more
core   +1 more source

Development of X-Band Transceiver MMIC’s Using GaN Technology

open access: yesAdvanced Electromagnetics, 2019
This paper describes X-Band power amplifier (PA), low noise amplifier (LNA) and switches that can be used in transmit/receive modules which are developed with GaN technology.
O. Memioglu   +6 more
doaj   +1 more source

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