Performance enhancement in the desing of amplifier and amplifier-less circuits in modern CMOS technologies
- Autores: Elena Cabrera Bernal
- Directores de la Tesis: Clara Isabel Luján Martínez (dir. tes.), Antonio J. Torralba Silgado (dir. tes.)
- Lectura: En la Universidad de Sevilla ( España ) en 2018
- Idioma: español
- Número de páginas: 58
- Tribunal Calificador de la Tesis: Ramon Gonzalez Carvajal (presid.), Antonio López Martín (secret.), Jaime Ramírez Angulo (voc.), Salvatore Pennisi (voc.), María de Rodanas Valero Bernal (voc.)
- Programa de doctorado: Programa de Doctorado en Ingeniería Automática, Electrónica y de Telecomunicación por la Universidad de Sevilla
- Materias:
- Enlaces
- Tesis en acceso abierto en: Idus
- Resumen
In the context of nowadays CMOS technology downscaling and the increasing demand of high performance electronics by industry and consumers, analog design has become a major challenge.
On the one hand, beyond others, amplifiers have traditionally been a key cell for many analog systems whose overall performance strongly depends on those of the amplifier. Consequently, still today, achieving high performance amplifiers is essential. On the other hand, due to the increasing difficulty in achieving high performance amplifiers in downscaled modern technologies, a different research line that replaces the amplifier by other more easily achievable cells appears: the so called amplifier-less techniques.
This thesis explores and contributes to both philosophies. Specifically, a lowvoltage differential input pair is proposed, with which three multistage amplifiers in the state of art are designed, analysed and tested. Moreover, a structure for the implementation of differential switched capacitor circuits, specially suitable for comparator-based circuits, that features lower distortion and less noise than the classical differential structures is proposed, an, as a proof of concept, implemented in a ΔΣ modulator.
