A Q-Enhanced Biquadratic Gm-C Filter for High Frequency Applications

Author

Moezzi, Mohsen ; Zanbaghi, Ramin ; Atarodi, Mojtaba ; Tajalli, Armin

Author_Institution

Sharif Univ. of Technol., Tehran

fYear

2006

fDate

10-13 Dec. 2006

Firstpage

248

Lastpage

251

Abstract

The design of a Gm-C filter for High-Frequency applications is described in this paper. A low-pass, sixth-order elliptic Gm-C filter based on the new biquadratic architecture in 0.18 um CMOS process is designed with the proper dynamic rang. A simple structure of the high Q biquadratic filter is used to enhance the linearity and tunability of the filter. The cut off frequency of this filter is 33 MHz. It has a THD of -45 dB for 0.2 Vpp, 8 MHz signal. The complete filter including on-chip tuning circuit consumes only 0.8 mA with 1.8 V single supply voltage.

Keywords

CMOS integrated circuits; biquadratic filters; elliptic filters; integrated circuit design; low-pass filters; CMOS process; Gm-C filter; Q-enhanced biquadratic filter; current 0.8 mA; high frequency; low-pass sixth-order filter; size 0.18 micron; voltage 1.8 V; CMOS process; Capacitors; Circuits; Equations; Filters; Frequency; Linearity; Transconductors; Virtual manufacturing; Voltage; CMOS analog circuit design; Low voltage; biquadratic filter; transconductor;

fLanguage

English

Publisher

ieee

Conference_Titel

Electronics, Circuits and Systems, 2006. ICECS '06. 13th IEEE International Conference on

Conference_Location

Nice

Print_ISBN

1-4244-0395-2

Electronic_ISBN

1-4244-0395-2

Type

conf

DOI

10.1109/ICECS.2006.379772

Filename

4263350