A MOSFET-only continuous-time biquadratic filter

Author

Huang, Qiuting

Author_Institution

Integrated Syst. Lab., Swiss Federal Inst. of Technol., Zurich, Switzerland

Volume

2

fYear

1995

fDate

13-16 Aug 1995

Firstpage

909

Abstract

A MOSFET-only filter structure is described which employs an amplifier-regulated cascode structure to realize both conductance and transconductance, while the required capacitors are realized by MOSFET gate capacitance. The filter configuration is such that both MOSFET capacitors and MOSFET resistors are always biased in the triode region, so that the only remaining nonlinearity is that caused by mobility degradation due to the normal field, which can be reduced by differential structures

Keywords

CMOS analogue integrated circuits; MOSFET circuits; biquadratic filters; continuous time filters; 1 mum; 560 kHz; CMOS technology; IF filter; MOSFET capacitors; MOSFET gate capacitance; MOSFET resistors; MOSFET-only continuous-time biquadratic filter; amplifier-regulated cascode structure; conductance; differential structures; mobility degradation; transconductance; triode region biasing; Capacitors; Degradation; Joining processes; MOSFET circuits; Nonlinear filters; Operational amplifiers; Resistors; Transconductance; Transconductors; Voltage;

fLanguage

English

Publisher

ieee

Conference_Titel

Circuits and Systems, 1995., Proceedings., Proceedings of the 38th Midwest Symposium on

Conference_Location

Rio de Janeiro

Print_ISBN

0-7803-2972-4

Type

conf

DOI

10.1109/MWSCAS.1995.510237

Filename

510237