Results 11 to 20 of about 470 (113)
IEEE Access, 2022 This paper presents a new electronically tunable universal filter and quadrature oscillator for low frequency biomedical and biosensor applications employing low-voltage differential difference transconductance amplifier (DDTA).
Montree Kumngern +3 more
doaj +3 more sources
A Fully Differential Difference Transconductance Amplifier Topology Based on CMOS Inverters
Electronics (Switzerland), 2023 This manuscript presents a fully differential difference transconductance amplifier (FDDTA) architecture based on CMOS inverters. Designed in a 130-nm CMOS process it operates in weak inversion when supplied with 0.25 V. In addition, the FDDTA requires no supplementary external calibration circuit, like tail current or bias voltage sources, since it ...
Rodrigo Aparecido Da Silva Braga +1 more
exaly +2 more sources
Generalized EIS Measurement Method in Li-Ion Batteries [PDF]
SensorsThis work presents the realization of a compact and embedded impedance-based sensor system for the characterization of lithium-ion batteries by means of electrical impedance spectroscopy (EIS).
Juan María Nogales +4 more
doaj +2 more sources
Applied SciencesThis paper presents a mixed-mode universal filter using differential difference current conveyor transconductance amplifiers (DDCCTA). Despite using a minimum number of MOS differential pairs, the proposed DDCCTA is a multiple-input, multiple-output ...
Montree Kumngern +2 more
doaj +3 more sources
Circuits and Systems, 2015 This research paper contains a new electronically tunable current-mode biquadratic universal filter using a new active building block; current controlled differential difference current conveyor transconductance amplifier (CCDDCCTA). The proposed filter provides the following important and desirable features: (i) One can use only one CCDDCCTA and two ...
Sajal K Paul, Ajay Kumar Kushwaha
exaly +3 more sources
Low‐voltage fully differential difference transconductance amplifier
IET Circuits, Devices & Systems, 2017 A new complementary metal–oxide–semiconductor (CMOS) structure for fully differential difference transconductance amplifier (FDDTA) is presented in this study. Thanks to using the non‐conventional quasi‐floating‐gate (QFG) technique the circuit is capable to work under low‐voltage supply of 0.6 V with extended input voltage range and with class AB ...
Fabian Khateb +3 more
openaire +2 more sources
0.3-Volt Rail-to-Rail DDTA and Its Application in a Universal Filter and Quadrature Oscillator
Sensors, 2022 This paper presents the extremely low-voltage supply of the CMOS structure of a differential difference transconductance amplifier (DDTA). With a 0.3-volt supply voltage, the circuit offers rail-to-rail operational capability. The circuit is designed for
Fabian Khateb +3 more
doaj +1 more source
0.5 V Universal Filter and Quadrature Oscillator Based on Multiple-Input DDTA
IEEE Access, 2023 This paper presents a universal voltage-mode filter and quadrature oscillator based on low-voltage multiple-input differential difference transconductance amplifier (MI-DDTA).
Montree Kumngern +2 more
doaj +1 more source
0.3-V Voltage-Mode Versatile First-Order Analog Filter Using Multiple-Input DDTAs
Sensors, 2023 This paper presents a versatile first-order analog filter using differential difference transconductance amplifiers (DDTAs). The DDTA employs the bulk-driven (BD) multiple-input MOS transistors technique (MI-MOST) operating in the subthreshold region ...
Montree Kumngern +3 more
doaj +1 more source
Universal Filter Based on Compact CMOS Structure of VDDDA
Sensors, 2021 This paper proposes the simulated and experimental results of a universal filter using the voltage differencing differential difference amplifier (VDDDA).
Winai Jaikla +3 more
doaj +1 more source