Title :
A new approach to data conversion: direct analog-to-residue converter
Author :
Radhakrishnan, D. ; Preethy, A.P.
Author_Institution :
Nanyang Technol. Univ., Singapore
Abstract :
A novel design of a direct analog-to-residue converter is presented. The design makes use of two successive approximation analog-to-digital (A/D) converters, a few module adders and a small look-up table. One of the digital-to-analog converters is modified to generate outputs which are weighted by a constant factor, and one of the comparators is replaced by a difference amplifier. The look-up table needed is a very small percentage of the entire chip area and is shown to be only 840 bytes for a 36 bit residue number system converter
Keywords :
analogue-digital conversion; digital-analogue conversion; residue number systems; 36 bit; 840 byte; DSP; analog-to-digital converters; chip area; comparators; data conversion; difference amplifier; digital-to-analog converters; direct analog-to-residue converter; look-up table; module adders; residue number system converter; successive approximation ADC; Adders; Analog-digital conversion; Computer applications; Data conversion; Digital-analog conversion; Programmable logic arrays; Resistors; Switches; Table lookup; Voltage;
Conference_Titel :
Acoustics, Speech and Signal Processing, 1998. Proceedings of the 1998 IEEE International Conference on
Conference_Location :
Seattle, WA
Print_ISBN :
0-7803-4428-6
DOI :
10.1109/ICASSP.1998.678160
