New CMOS tunable transconductor for filtering applications

Author

Pamisano, G. ; Pennisi, S.

Author_Institution

Dipartimento Elettrico Elettronico e Sistemistico, Catania Univ., Italy

Volume

1

fYear

2001

fDate

6-9 May 2001

Firstpage

196

Abstract

A CMOS high-performance transconductor useful for IC filtering applications is presented. It is based on a feedback source-follower configuration using a resistor to achieve linear voltage-to-current conversion. Tunability is attained through variable-gain current mirrors. A balanced integrator was designed in a 0.8-μm technology and simulations are given which show tunability over a factor of 20 and THD of at most 0.56% for a 300 mVpp input signal at 1 MHz

Keywords

CMOS analogue integrated circuits; circuit tuning; continuous time filters; current mirrors; harmonic distortion; integrating circuits; 0.8 micron; 1 MHz; CMOS tunable transconductor; IC filtering applications; THD; balanced integrator; feedback source-follower configuration; filtering applications; linear voltage-to-current conversion; tunability; variable-gain current mirrors; Application specific integrated circuits; CMOS integrated circuits; CMOS technology; Feedback; Filtering; Mirrors; Resistors; Signal design; Transconductors; Voltage;

fLanguage

English

Publisher

ieee

Conference_Titel

Circuits and Systems, 2001. ISCAS 2001. The 2001 IEEE International Symposium on

Conference_Location

Sydney, NSW

Print_ISBN

0-7803-6685-9

Type

conf

DOI

10.1109/ISCAS.2001.921824

Filename

921824