Title :
Design considerations for CMOS switched-current filters
Author :
Allstot, David ; Fiez, Terri ; Liang, Guojin
Author_Institution :
Dept. of Electr. & Comput. Eng., Oregon State Univ., Corvallis, OR, USA
Abstract :
The design considerations for IIR (infinite impulse response) and FIR (finite impulse response) filters using switched-current technology are presented. By using current rather than voltages to represent signals, IIR and FIR filters have been implemented using basic switched-current building blocks. Current gain errors and harmonic distortion effects are studied. IIR and FIR filters have been implemented using MOSIS 2-μm CMOS technology. Excellent results have been obtained for sampling frequencies exceeding 10 MHz
Keywords :
CMOS integrated circuits; digital filters; switched filters; 2 micron; CMOS switched-current filters; FIR; IIR; MOSIS; harmonic distortion effects; sampling frequencies; switched-current building blocks; CMOS technology; Delay; Finite impulse response filter; Frequency; IIR filters; MOSFETs; Mirrors; Signal processing; Switches; Switching circuits;
Conference_Titel :
Custom Integrated Circuits Conference, 1990., Proceedings of the IEEE 1990
Conference_Location :
Boston, MA
DOI :
10.1109/CICC.1990.124686
