Title :
A fully tuneable micropower log-domain filter
Author :
Ngarmnil, Jitkasame ; Toumazou, Chris
Author_Institution :
Dept. of Electr. & Electron. Eng., Imperial Coll. of Sci. Technol. & Med., London, UK
Abstract :
We present a section of a second-order low distortion continuous-time filter employing MOSFETs operating in weak inversion. The idea is based upon the recently proposed log-domain filter approach used in bipolar technology. Measured results from a test chip fabricated in 0.8 μ BiCMOS process are presented. Chip power consumption is 1 μW and the tuneable frequency range is 100 Hz-10 kHz
Keywords :
BiCMOS analogue integrated circuits; circuit tuning; continuous time filters; electric distortion; 0.8 micron; 1 muW; 100 Hz to 10 kHz; BiCMOS process; MOSFETs; chip power consumption; continuous-time filter; low distortion filter; micropower log-domain filter; second-order filter; tuneable frequency range; weak inversion;
Conference_Titel :
Low Power Analogue and Digital VLSI: ASICS, Techniques and Applications, IEE Colloquium on
Conference_Location :
London
DOI :
10.1049/ic:19950796
