Title :
CMOS filter with wide digitally programmable VHF range
Author :
Otin, A. ; Celma, S. ; Aldea, C.
Author_Institution :
Group of Electron. Design, Univ. of Zaragoza
Abstract :
A novel approach is presented for programmable filtering over the VHF range based on fully-balanced pseudo-differential continuous-time transconductors for applications in low-voltage systems. An example third-order Gm-C lowpass Butterworth filter using the proposed transconductor and accumulation MOS capacitors has been implemented using an AMS 0.35 mum CMOS process, achieving -3 dB cutoff frequencies ranging from 40 to 200 MHz. The active chip area is 0.06 mm 2 per pole
Keywords :
Butterworth filters; CMOS integrated circuits; VHF filters; low-pass filters; low-power electronics; programmable filters; 0.35 micron; 40 to 200 MHz; AMS CMOS process; CMOS filter; VHF filter; accumulation MOS capacitors; digitally programmable filter; low-voltage systems; pseudo-differential continuous-time transconductors; third-order lowpass Butterworth filter;
Journal_Title :
Electronics Letters
