Title :
An auto-tuning structure for continuous time sigma-delta AD converter and high precision filters
Author :
Xia, Bo ; Yan, Shouli ; Sanchez-Sinencio, Edgar
Author_Institution :
Dept. of Electr. Eng., Texas A&M Univ., College Station, TX, USA
Abstract :
In this paper, a discrete auto-tuning structure is proposed for continuous time sigma-delta AD converter (ADC) and applications that require high linearity, moderate precision in RC or C/gm time constant. Comparison with continuous gm tuning and some other passive tuning implementations is also presented. A circuit is designed in 0.5 μm CMOS process to examine the performance of the proposed circuit structure.
Keywords :
circuit simulation; circuit tuning; continuous time systems; sigma-delta modulation; 0.5 micron; auto-tuning structure; circuit structure; continuous gm tuning; continuous time sigma-delta AD converter; high precision filters; linearity; passive tuning implementations; CMOS process; CMOS technology; Capacitors; Circuit optimization; Circuit simulation; Circuit synthesis; Delta-sigma modulation; Filters; Linearity; Tuned circuits;
Conference_Titel :
Circuits and Systems, 2002. ISCAS 2002. IEEE International Symposium on
Print_ISBN :
0-7803-7448-7
DOI :
10.1109/ISCAS.2002.1010773
