Results 21 to 30 of about 32,761 (322)

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

open access: yesTechnologies, 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   +5 more
doaj   +1 more source

Design of a high-speed Schmitt trigger

open access: yesDianzi Jishu Yingyong, 2022
In the digital isolator system, due to the existence of circuit parasitics and random noise, the waveform of the digital signal will be severely distorted.
Sun Jianmin   +3 more
doaj   +1 more source

A 0.6 V Bulk-Driven Class-AB Two-Stage OTA with Non-Tailed Differential Pair

open access: yesJournal of Low Power Electronics and Applications, 2023
This work presents a two-stage operational transconductance amplifier suitable for sub-1 V operation. This characteristic is achieved thanks to the adoption of a bulk-driven non-tailed differential pair.
Andrea Ballo   +2 more
doaj   +1 more source

0.5-V 281-nW Versatile Mixed-Mode Filter Using Multiple-Input/Output Differential Difference Transconductance Amplifiers

open access: yesSensors, 2023
This paper presents a new low-voltage versatile mixed-mode filter which uses a multiple-input/output differential difference transconductance amplifier (MIMO-DDTA).
Fabian Khateb   +2 more
doaj   +1 more source

A 5.5 μW 42 nV/√Hz Chopper stabilized Amplifier for Biomedical Application with Input Impedance Enhancement [PDF]

open access: yesInternational Journal of Electronics and Telecommunications, 2021
The continuous real-time monitoring of diverse physical parameters using biosignals like ECG and EEG requires the biomedical sensors. Such sensor consists of analog frontend unit for which low noise and low power Operational transconductance amplifier ...
Ankit Adesara, Amisha Naik
doaj   +1 more source

Design and analysis of modified recycling folded cascode amplifier with improved transconductance and slew rate

open access: yesEngineering and Applied Science Research, 2020
To improve the transconductance of operational transconductance amplifier (OTA), various architectures namely recycling folded cascode (RFC), Improved recycling folded cascode (IRFC), modified recycling folded cascode (MRFC) and high recycling folded ...
Sudheer Raja Venishetty   +1 more
doaj   +1 more source

Transconductance enhancement method for operational transconductance amplifiers

open access: yesElectronics Letters, 2010
An improved recycling structure for an operational transconductance amplifier is proposed. The proposed structure separates the AC path from the DC path, and achieves a significant boost in transconductance under the same power and area budget. A folded-cascode amplifier employing the improved recycling structure was implemented in SMIC standard 0.13 ...
Y.L. Li   +4 more
openaire   +1 more source

CMOS OTA-C high-frequency sinusoidal oscillators [PDF]

open access: yes, 1991
Several topology families are given to implement practical CMOS sinusoidal oscillators by using operational transconductance amplifier-capacitor (OTA-C) techniques. Design techniques are proposed taking into account the CMOS OTA's dominant nonidealities.
Huertas Díaz, José Luis   +3 more
core   +1 more source

Digitally Programmable Integrator and Differentiator

open access: yesActive 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   +2 more
doaj   +1 more source

Mathematical Circuit Root Simplification Using an Ensemble Heuristic–Metaheuristic Algorithm

open access: yesMathematics, 2023
Symbolic pole/zero analysis is a crucial step in designing an analog operational amplifier. Generally, a simplified symbolic analysis of analog circuits suffers from NP-hardness, i.e., an exponential growth of the number of symbolic terms of the transfer
Navid Behmanesh-Fard   +3 more
doaj   +1 more source

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