A gm/ID-Based Noise Optimization for CMOS Folded-Cascode Operational Amplifier

Autor: OU, jack, Maris Ferreira, Pietro
Přispěvatelé: University of California [Riverside] (UCR), University of California, Supélec Sciences des Systèmes (E3S), Ecole Supérieure d'Electricité - SUPELEC (FRANCE)
Jazyk: angličtina
Rok vydání: 2014
Předmět:
Zdroj: IEEE Transactions on Circuits and Systems Part 2 Analog and Digital Signal Processing
IEEE Transactions on Circuits and Systems Part 2 Analog and Digital Signal Processing, Institute of Electrical and Electronics Engineers (IEEE), 2014, 61 (10), pp.783-787
ISSN: 1057-7130
Popis: International audience; Noise optimization is a challenging problem for nanoscale metal–oxide–silicon field-effect transistor circuits. This brief presents a technique that uses transconductance-to-drain current $(g_{m}/I_{D})$-dependent transistor-noise parameters to explore the design space and to evaluate tradeoff decisions. An expression for the corner frequency of the folded-cascode amplifier is derived. The design process demonstrated in this brief using the folded-cascode amplifier is applicable to a wide class of amplifier circuits.
Databáze: OpenAIRE