Title :
Subthreshold current mode matrix determinant computation for analog signal processing
Author :
Kim, Stephen T. ; Choi, Jaehyouk ; Beck, Sungho ; Song, Taejoong ; Lim, Kyutae ; Laskar, Joy
Author_Institution :
Georgia Inst. of Technol., Atlanta, GA, USA
fDate :
May 30 2010-June 2 2010
Abstract :
The matrix determinant computation system (MDCS) is developed in subthreshold current-mode for an analog signal processing. By utilizing the translinear loop principle and the novel differential architecture, the MDCS can perform accurate addition, subtraction, and multiplication in analog domain. The system computes a 2-by-2 and 3-by-3 determinant with 91 % accuracy and a 3 kHz input can be handled while consuming 110.05μW. The overall system is fabricated on a 0.18μm CMOS technology and the area is 500μm × 800μm.
Keywords :
CMOS analogue integrated circuits; matrix algebra; signal processing; CMOS technology; MDCS; analog signal processing; differential architecture; frequency 3 kHz; power 110.05 muW; subthreshold current mode matrix determinant computation; translinear loop principle; Analog computers; CMOS technology; Computer architecture; Degradation; Digital signal processing; Energy consumption; Signal processing; Signal processing algorithms; Signal resolution; Subthreshold current;
Conference_Titel :
Circuits and Systems (ISCAS), Proceedings of 2010 IEEE International Symposium on
Conference_Location :
Paris
Print_ISBN :
978-1-4244-5308-5
Electronic_ISBN :
978-1-4244-5309-2
DOI :
10.1109/ISCAS.2010.5537276
