Title :
Linearised differential transconductors in subthreshold CMOS
Author :
Furth, Paul M. ; Andreou, A.G.
Author_Institution :
Dept. of Electr. & Comput. Eng., Johns Hopkins Univ., Baltimore, MD, USA
fDate :
3/30/1995 12:00:00 AM
Abstract :
Three schemes for linearising the transconductance of the basic differential pair in subthreshold CMOS are examined: (i) multiple asymmetric differential pairs, (ii) source degeneration via symmetric diffusers, and (iii) source degeneration via a single diffuser. Using a maximally flat optimising criterion, the linear range of the basic differential pair can be increased by 4-8 times
Keywords :
CMOS analogue integrated circuits; continuous time filters; differential amplifiers; linear range; linearised differential transconductors; maximally flat optimising criterion; multiple asymmetric differential pairs; source degeneration; subthreshold CMOS; symmetric diffusers;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19950376
