Zobrazeno 1 - 10
of 467
pro vyhledávání: '"Jaime Ramirez-Angulo"'
Autor:
Jaime Ramirez-Angulo, Antonio J. Lopez-Martin, Ramón G. Carvajal, Antonio Torralba, Jesus Huerta-Chua
Publikováno v:
Eng, Vol 4, Iss 1, Pp 780-798 (2023)
A review of some of the most common applications of the resistive local common mode feedback technique to enhance amplifier’s performance is presented. It is shown that this simple technique offers essential improvement in open loop gain, gain-band
Externí odkaz:
https://doaj.org/article/9b517c35d2624ca68b6241dbde98529b
Autor:
Anindita Paul, Jaime Ramirez-Angulo, Alejandro Diaz Sanchez, Antonio J. Lopez-Martin, Ramon Gonzalez Carvajal, Frank X. Li
Publikováno v:
IEEE Access, Vol 9, Pp 57603-57617 (2021)
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 to implement the regulated cas
Externí odkaz:
https://doaj.org/article/5ad01b37587b4ea0b3696bac1b580c64
Autor:
Anindita Paul, Jaime Ramirez-Angulo, Alejandro Diaz Sanchez, Antonio J. Lopez-Martin, Ramon Gonzalez Carvajal, Frank X. Li
Publikováno v:
IEEE Access, Vol 9, Pp 69783-69797 (2021)
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 high static and dynamic curr
Externí odkaz:
https://doaj.org/article/e3af609e11d14c1bb2f1a0314dc74c78
Autor:
Hector Daniel Rico-Aniles, Jaime Ramirez-Angulo, Jose Miguel Rocha-Perez, Antonio J. Lopez-Martin, Ramon Gonzalez Carvajal
Publikováno v:
IEEE Access, Vol 8, Pp 106310-106321 (2020)
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 constants. It operates with
Externí odkaz:
https://doaj.org/article/8f2e8cac7f5b4b85a0ba38d292b56d29
Autor:
Hector Daniel Rico-Aniles, Jaime Ramirez-Angulo, Antonio J. Lopez-Martin, Ramon Gonzalez Carvajal, Jose Miguel Rocha-Perez, M. Pilar Garde
Publikováno v:
IEEE Access, Vol 8, Pp 66508-66516 (2020)
A technique to implement true-sample-and-hold circuits that hold the output for almost the entire clock cycle without resetting to zero is introduced, alleviating the slew rate requirement on the op-amp. It is based on a Miller op-amp with an auxilia
Externí odkaz:
https://doaj.org/article/eaa5ebf245ff43bc96a7af9c75753dd1
Autor:
Jaime Ramirez-Angulo, Alejandra Diaz-Armendariz, Jesus E. Molinar-Solis, Alejandro Diaz-Sanchez, Jesus Huerta-Chua
Publikováno v:
Journal of Low Power Electronics and Applications, Vol 13, Iss 1, p 4 (2023)
A comparative study of one-stage-amp performance improvement based on simulations in 22 nm, 45 nm, 90 nm, and 180 nm in deep submicrometer CMOS technologies is discussed. Generic SPICE models were used to simulate the circuits. It is shown that in al
Externí odkaz:
https://doaj.org/article/e6f20e95d44a40049cacbbc63cf3f46a
Autor:
Manaswini Gangineni, Jaime Ramirez-Angulo, Héctor Vázquez-Leal, Jesús Huerta-Chua, Antonio J. Lopez-Martin, Ramon Gonzalez Carvajal
Publikováno v:
Journal of Low Power Electronics and Applications, Vol 12, Iss 3, p 35 (2022)
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 implemented with no-tail, hig
Externí odkaz:
https://doaj.org/article/1ee63eb4f5e74f549ec0d96f8d55d2b4
Autor:
Anindita Paul, Jaime Ramirez-Angulo, Héctor Vázquez-Leal, Jesús Huerta-Chua, Alejandro Diaz-Sanchez
Publikováno v:
Journal of Low Power Electronics and Applications, Vol 12, Iss 1, p 9 (2022)
A highly power-efficient, fully differential Miller op-amp with accurately controlled output quiescent current is introduced. The op-amp can drive both capacitive and resistive load due to the presence of the auxiliary amplifier. This amplifier helps
Externí odkaz:
https://doaj.org/article/d4f3cd2ab8d74d06a038bc54d3dff487
Autor:
Anindita Paul, Mario Renteria-Pinon, Jaime Ramirez-Angulo, Ricardo Bolaños-Pérez, Héctor Vázquez-Leal, Jesús Huerta-Chua, Alejandro Diaz-Sánchez
Publikováno v:
Journal of Low Power Electronics and Applications, Vol 11, Iss 3, p 31 (2021)
An approach to implement single-ended power-efficient static class-AB Miller op-amps with symmetrical and significantly enhanced slew-rate and accurately controlled output quiescent current is introduced. The proposed op-amp can drive a wide range of
Externí odkaz:
https://doaj.org/article/fbb58b79183143ac92d95e7d29f0fa5f
Autor:
Uriel Filobello-Nino, Hector Vazquez-Leal, Jesus Huerta-Chua, Jaime Ramirez-Angulo, Darwin Mayorga-Cruz, Rogelio Alejandro Callejas-Molina
Publikováno v:
Mathematics, Vol 9, Iss 11, p 1204 (2021)
This work proposes the Integral Homotopy Expansive Method (IHEM) in order to find both analytical approximate and exact solutions for linear and nonlinear differential equations. The proposal consists of providing a versatile method able to provide a
Externí odkaz:
https://doaj.org/article/7914b96661ac40108f81e2c2917af90d