100MHz, 6th order, leap-frog gm-C high Q bandpass filter and on-chip tuning scheme

Author

Moritz, James ; Sun, Yichuang

Author_Institution

Sch. of Electron., Commun. & Electr. Eng., Hertfordshire Univ., Hatfield

fYear

2006

fDate

21-24 May 2006

Lastpage

2384

Abstract

A 100MHz centre frequency, 10MHz bandwidth 6^th order Butterworth bandpass filter using a leap-frog gm-C structure is described. Fully differential Nauta OTAs are used in the design, which include compensation of parasitic output resistance and feed-forward effects to obtain high Q. A mixed-signal, on-chip tuning system based on Dishal´s method is described. The filter and tuning system have been simulated using Mosis 0.18mm BSIM 3v3 models and PSpice

Keywords

Butterworth filters; Q-factor; VHF filters; band-pass filters; circuit tuning; operational amplifiers; 0.18 mm; 10 MHz; 100 MHz; Butterworth filter; Dishal method; Mosis BSIM 3v3 models; PSpice; bandpass filter; differential Nauta OTA; feedforward effects; high Q filter; leap-frog gm-C filter; on-chip tuning scheme; operational transconductance amplifier; parasitic output resistance; Band pass filters; Bandwidth; Capacitors; Circuit optimization; Coupling circuits; Frequency; Resonator filters; Transceivers; Tuning; Virtual prototyping;

fLanguage

English

Publisher

ieee

Conference_Titel

Circuits and Systems, 2006. ISCAS 2006. Proceedings. 2006 IEEE International Symposium on

Conference_Location

Island of Kos

Print_ISBN

0-7803-9389-9

Type

conf

DOI

10.1109/ISCAS.2006.1693101

Filename

1693101