A programmable VHF CMOS read-channel continuous-time filter with on-chip tuning

Author

Shou, Xiaoqiarzg ; Green, Michael

Author_Institution

Dept. of Electr. & Comput. Eng., California Univ., Irvine, CA, USA

Volume

1

fYear

2001

fDate

6-9 May 2001

Firstpage

208

Abstract

A fifth-order CMOS read-channel filter with a wide programmable/tunable frequency range is presented. The fully differential g_m-C filter achieves a programmable bandwidth from 60 MHz to 500 MHz in 7 bands with an accurate on-chip tuning circuit which allows 10% variation within each band. High frequency operation and very accurate transfer function realization are achieved simultaneously by use of capacitance equalization and negative impedance techniques. This filter, which is realized in TSMC 0.25 μm mixed-signal CMOS technology, dissipates 142 mW with 2.5 V supply voltage and occupies an active area of 0.4 mm²

Keywords

CMOS analogue integrated circuits; VHF filters; circuit feedback; circuit tuning; continuous time filters; integrated circuit design; programmable filters; 0.25 micron; 142 mW; 2.5 V; 60 to 500 MHz; CMOS continuous-time filter; TSMC mixed-signal CMOS technology; accurate transfer function realization; active filter; capacitance equalization; fifth-order filter; fully differential g_m-C filter; high frequency operation; negative impedance techniques; onchip tuning; programmable VHF filter; programmable bandwidth; programmable frequency range; read-channel continuous-time filter; tunable frequency range; Bandwidth; CMOS technology; Capacitance; Circuit optimization; Filters; Frequency; Impedance; Transfer functions; Tunable circuits and devices; VHF circuits;

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.2001.921827

Filename

921827