Listar Artículos de revista ISC - ISC aldizkari artikuluak por autor "González Carvajal, Ramón"
Mostrando ítems 1-7 de 7
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±0.3v bulk-driven fully differential buffer with high figures of merit
Gangineni, Manaswini; Ramírez-Angulo, Jaime; Vázquez-Leal, Héctor; Huerta-Chua, Jesús; López Martín, Antonio; González Carvajal, Ramón (MDPI, 2022) Artículo / Artikulua
A high performance bulk-driven rail-to-rail fully differential buffer operating from ±0.3V supplies in 180 nm CMOS technology is reported. It has a differential–difference input stage and common mode feedback circuits ... -
360 nW gate-driven ultra-low voltage CMOS linear transconductor with 1 MHz bandwidth and wide input range
Rico-Aniles, Héctor Daniel; Ramírez-Angulo, Jaime; López Martín, Antonio; González Carvajal, Ramón (IEEE, 2020) Artículo / Artikulua
A low voltage linear transconductor is introduced. The circuit is a pseudo differential architecture that operates with ±0.2V supplies and uses 900nA total biasing current. It employs a floating battery technique to achieve ... -
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 ... -
An enhanced gain-bandwidth class-AB miller op-amp with 23,800 MHz pF/mW FOM, 11-16 current efficiency and wide range of resistive and capacitive loads driving capability
Paul, Anindita; Ramírez-Angulo, Jaime; Díaz Sánchez, Alejandro; López Martín, Antonio; González Carvajal, Ramón; Li, Frank X. (IEEE, 2021) Artículo / Artikulua
A compact power-efficient class-AB Miller op-amp is introduced. It uses a simple auxiliary circuit that enhances the op-amp's gain-bandwidth product and helps to drive a wide range of capacitive and resistive loads with ... -
Low-voltage 0.81mW, 1-32 CMOS VGA with 5% bandwidth variations and -38dB DC rejection
López Martín, Antonio; Rico-Aniles, Héctor Daniel; Ramírez-Angulo, Jaime; Rocha-Pérez, José Miguel; González Carvajal, Ramón (IEEE, 2020) Artículo / Artikulua
A CMOS low-voltage amplifier with approximately constant bandwidth and DC rejection is introduced. The design is based on the cascade of a wide linear input range OTA, an op-amp and a servo-loop with extremely large time ... -
Pseudo-three-stage Miller op-amp with enhanced small-signal and large-signal performance
Paul, Anindita; Ramírez-Angulo, Jaime; López Martín, Antonio; González Carvajal, Ramón; Rocha-Pérez, José Miguel (IEEE, 2019) Artículo / Artikulua
A simple technique to implement highly power efficient class AB-AB Miller op-amps is presented in this paper. It uses a composite input stage with resistive local common mode feedback that provides class AB operation to ... -
Super-gain-boosted AB-AB fully differential Miller op-amp with 156dB open-loop gain and 174MV/V MHZ pF/uW figure of merit in 130nm CMOS technology
Paul, Anindita; Ramírez-Angulo, Jaime; Díaz Sánchez, Alejandro; López Martín, Antonio; González Carvajal, Ramón; Li, Frank X. (IEEE, 2021) Artículo / Artikulua
A fully differential Miller op-amp with a composite input stage using resistive local common-mode feedback and regulated cascode transistors is presented here. High gain pseudo-differential auxiliary amplifiers are used ...