Title :
VLSI improvements in a binary multiplier based on analog digits
Author :
Saed, Aryan ; Ahmadi, Majid ; Jullien, Graham A.
Author_Institution :
Nortel Networks, Nepean, Ont., Canada
Abstract :
The overlap resolution number system (ORNS) employs digit level residue arithmetic with analog digits. A binary multiplier based on analog digits consists of an array of current-mode CMOS module adders and digit refreshment circuits. The multiplier architecture allows for arbitrary digital accuracy. Despite the simplicity of current mirrors in CMOS circuits. The overall complexity of the multiplier is chiefly determined by the parameters of the binary interface. Its speed is determined by the elementary adder circuits and by digit refreshment circuits. This paper addresses the speed limitations of the existing correction circuit, and proposes a novel design.
Keywords :
CMOS analogue integrated circuits; VLSI; adders; analogue multipliers; current-mode circuits; integrated circuit design; residue number systems; 0.8 mum; 3.3 V; ORNS; VLSI; analog digits; binary interface; binary multiplier; correction circuit; current-mode CMOS module adders; digit level residue arithmetic; digit refreshment circuits; multiplier architecture; overlap resolution number system; Adders; Analog circuits; Arithmetic; CMOS analog integrated circuits; CMOS digital integrated circuits; Intelligent networks; Mirrors; Tin; Very large scale integration; Voltage;
Conference_Titel :
Signals, Systems, and Computers, 1999. Conference Record of the Thirty-Third Asilomar Conference on
Conference_Location :
Pacific Grove, CA, USA
Print_ISBN :
0-7803-5700-0
DOI :
10.1109/ACSSC.1999.831901