Title :
Current-mode integrator for voltage-controllable low frequency continuous-time filters
Author :
Yang, Z. ; Hinck, T. ; Cohen, H.I. ; Hubbard, A.E.
Author_Institution :
Dept. of Electr. & Comput. Eng., Boston Univ., MA, USA
fDate :
6/12/2003 12:00:00 AM
Abstract :
A novel differential current-mode integrator (CMI) for voltage-controllable low frequency continuous-time filters is presented. An example fifth-order lowpass filter using the proposed CMI and on-chip capacitors was implemented in an AMI 1.2 μm CMOS process, and it achieved -3 dB cutoff frequencies ranging from 160 Hz to 5.6 kHz, by changing a single control voltage.
Keywords :
CMOS analogue integrated circuits; continuous time filters; current-mode circuits; integrating circuits; low-pass filters; 1.2 micron; 160 Hz to 5.6 kHz; AMI CMOS process; continuous-time filters; control voltage; current-mode integrator; cutoff frequencies; fifth-order lowpass filter; low frequency filters; on-chip capacitors; voltage-controllable filters;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:20030580
