A highly linear CMOS Gm-C bandpass filter for video applications

Author

Chang, Z.Y. ; Haspeslagh, D. ; Boxho, J. ; Macq, D.

Author_Institution

Alcatel Bell Telephone, Antwerp, Belgium

fYear

1996

fDate

5-8 May 1996

Firstpage

89

Lastpage

92

Abstract

A 14th order CMOS transconductance-C (Gm-C) bandpass filter for video applications is described. By using highly linear Gm-C integrators, the filter achieves 75 dB dynamic range over 700 kHz noise bandwidth. The measured IM3 @ 600 kHz is -61 dB for a 4 Vpp input signal. On-chip automatic frequency tuning provides more than 300% center frequency range of the filter with 1% frequency accuracy. The 0.7 μm CMOS filter measures 4.8 mm² and consumes 70 mW from a single 5 V power supply

Keywords

CMOS analogue integrated circuits; active filters; band-pass filters; circuit tuning; video signal processing; 0.7 micron; 14th order filter; 5 V; 70 mW; 700 kHz; CMOS bandpass filter; Gm-C integrators; highly linear bandpass filter; onchip automatic frequency tuning; transconductance-C bandpass filter; video application; Band pass filters; Bandwidth; Circuit optimization; Digital filters; Frequency; Linearity; Nonlinear filters; Resistors; Threshold voltage; Voltage control;

fLanguage

English

Publisher

ieee

Conference_Titel

Custom Integrated Circuits Conference, 1996., Proceedings of the IEEE 1996

Conference_Location

San Diego, CA

Print_ISBN

0-7803-3117-6

Type

conf

DOI

10.1109/CICC.1996.510518

Filename

510518