Title :
A multichannel minimum-seeking analog-to-digital converter
Author :
Zrudsky, D.R. ; Ternus, J. ; Miller, D.G.
Author_Institution :
Dept. of Comput. Eng., Minnesota Univ., Duluth, MN, USA
fDate :
10/1/1990 12:00:00 AM
Abstract :
A special-purpose analog to digital (A/D) circuit using medium-scale integration ICs on a printed circuit board is developed. The circuit determines which of the eight input analog signals is the lowest and provides an 8-b magnitude and 3-b address output of this minimum input signal at a 0.5-MHz conversion rate. The circuit utilizes a successive approximation register, adder registers, CMOS D/A (digital/analog), parallel comparators, and a priority encoder connected in closed loop. Control is accomplished using simple flip-flop logic. Several important signal-processing applications are mentioned for this circuit as a feedback component in optical and electronic systems, utilizing associative self-organizing memory
Keywords :
analogue-digital conversion; signal processing equipment; 0.5 MHz; A/D convertor; CMOS DAC; adder registers; closed loop; flip-flop logic; medium-scale integration ICs; minimum seeking ADC; multichannel type; parallel comparators; printed circuit board; priority encoder; signal-processing applications; successive approximation register; Adders; Analog-digital conversion; CMOS analog integrated circuits; CMOS digital integrated circuits; CMOS logic circuits; CMOS memory circuits; Flip-flops; Optical feedback; Printed circuits; Registers;
Journal_Title :
Circuits and Systems, IEEE Transactions on
