Title :
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
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;
Conference_Titel :
Custom Integrated Circuits Conference, 1996., Proceedings of the IEEE 1996
Conference_Location :
San Diego, CA
Print_ISBN :
0-7803-3117-6
DOI :
10.1109/CICC.1996.510518
