Listar por autor UPNA "Beloso Legarra, Javier"
Mostrando ítems 1-8 de 8
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Energy-efficient amplifiers based on quasi-floating gate techniques
López Martín, Antonio
; Garde Luque, María Pilar ; Algueta-Miguel, Jose M. ; Beloso Legarra, Javier ; González Carvajal, Ramón; Ramírez-Angulo, Jaime (MDPI, 2021)
Artículo / Artikulua 
Energy efficiency is a key requirement in the design of amplifiers for modern wireless applications. The use of quasi-floating gate (QFG) transistors is a very convenient approach to achieve such energy efficiency. We ... -
A family of alternating current amplifiers for ultra-low frequency operation
Martincorena Arraiza, Maite ; Carlosena García, Alfonso ; Cruz Blas, Carlos Aristóteles de la ; Beloso Legarra, Javier ; López Martín, Antonio (Wiley, 2021)
Artículo / Artikulua
A family of capacitively coupled alternating current (AC) amplifiers featuring ultra-low (below 1 Hz) corner frequency is presented. This is achieved by using high-gain devices which actively boost feedback resistance and ... -
Gain-boosted super class AB OTAs based on nested local feedback
Beloso Legarra, Javier ; Cruz Blas, Carlos Aristóteles de la ; López Martín, Antonio ; Ramírez-Angulo, Jaime (IEEE, 2021)
Artículo / Artikulua
A new approach to design super class AB operational transcon-ductance amplifiers (OTAs) with enhanced large-signal and small-signal performance is presented. It is based on employing two nested positive and negative feedback ... -
Power-efficient CMOS amplifiers for battery-supplied systems
Beloso Legarra, Javier (2023)
Tesis doctoral / Doktoretza tesia
In this Thesis, the design of power-efficient CMOS amplifiers that are suitable for battery-supplied systems with low-voltage and low-power constraints is developed. This type of circuit is essential in modern portable ... -
Power-efficient single-stage class-AB OTA based on non-linear nested current mirrors
Beloso Legarra, Javier ; Cruz Blas, Carlos Aristóteles de la ; López Martín, Antonio (IEEE, 2023)
Artículo / Artikulua
A novel approach to design low-power area-efficient rail-to-rail output single-stage class-AB operational transconductance amplifiers (OTAs) with enhanced large- and small-signal performance to drive large capacitive ... -
Single-stage class-AB non-linear current mirror OTA
Beloso Legarra, Javier ; Cruz Blas, Carlos Aristóteles de la ; López Martín, Antonio (IEEE, 2022)
Contribución a congreso / Biltzarrerako ekarpena
The analysis, design and experimental characterization of a single-stage class-AB operational transconductance amplifier (OTA) with enhanced large- and small-signal performance is presented. The OTA is biased in weak ... -
Two-stage OTA with all subthreshold MOSFETs and optimum GBW to DC-current ratio
Beloso Legarra, Javier ; Grasso, A.; López Martín, Antonio ; Palumbo, Gaetano; Pennisi, Salvatore (IEEE, 2022)
Artículo / Artikulua
An approach for the design of two-stage classAB OTAs with sub-1µA current consumption is proposed and demonstrated. The approach employs MOS transistors operating in subthreshold and allows maximum gain-bandwidth product ... -
Very-low frequency capacitively coupled AC amplifier with a current feedback operational amplifier
Beloso Legarra, Javier ; Cruz Blas, Carlos Aristóteles de la ; Carlosena García, Alfonso ; Martincorena Arraiza, Maite (Wiley, 2023)
Artículo / Artikulua
In this paper, we propose the idea of using transimpedance amplifiers, in lieu of operational amplifiers (OAs) or transconductance amplifiers (OTAs) to design capacitively coupled AC amplifiers. The idea is demonstrated ...
