A folded-cascode OTA based on complementary differential-pairs for HF applications

Author

Olivera-Romero, Genaro ; Silva-Martinez, Jose

Author_Institution

Integrated Cirsuits Design Group, Nat. Inst. for Astrophys. Opt. & Electron., Puebla, Mexico

fYear

1999

fDate

1999

Firstpage

57

Lastpage

60

Abstract

In this paper, several previously reported folded-cascode Operational Transconductance Amplifiers (OTAs) and a proposed structure based on complementary differential pairs are compared. For the same power consumption and similar transistor dimensions the proposed OTA presents both higher bandwidth and faster response. It is shown that for a typical switched-capacitor integrator, using 0.5 pF capacitors, 1% settling times below to 3 ns can be achieved

Keywords

CMOS analogue integrated circuits; differential amplifiers; operational amplifiers; radiofrequency amplifiers; HF applications; SC integrator; bandwidth; complementary differential-pairs; folded-cascode OTA; operational transconductance amplifiers; response; switched-capacitor integrator; Astrophysics; Capacitors; Circuits; Energy consumption; Frequency; Hafnium; Integrated optics; Parasitic capacitance; Stimulated emission; Transconductance;

fLanguage

English

Publisher

ieee

Conference_Titel

Design of Mixed-Mode Integrated Circuits and Applications, 1999. Third International Workshop on

Conference_Location

Puerto Vallarta

Print_ISBN

0-7803-5588-1

Type

conf

DOI

10.1109/MMICA.1999.833595

Filename

833595