Circuits and Systems

Volume 9, Issue 3 (March 2018)

ISSN Print: 2153-1285   ISSN Online: 2153-1293

Google-based Impact Factor: 0.88  Citations  h5-index & Ranking

Design of Digital to Analog Converters with Arbitrary Radix

HTML  XML Download Download as PDF (Size: 906KB)  PP. 49-57  
DOI: 10.4236/cs.2018.93005    884 Downloads   1,634 Views  Citations
Author(s)

ABSTRACT

There are DAC structures available in the literature for radix r = 2, 3, and 4; but how they are arrived at is missing. No general structure is available for any radix r. The aim of the paper is, therefore, to fulfil these gaps. To start with, the design relations are derived for the simplest possible attenuator circuit when connected to a voltage source V and a series resistance R, such that the complete circuit offers the Thevenin resistance R. Spread relations for this attenuator are derived. An example when 3 such attenuators with different attenuation constants are connected in cascade is given. Interestingly, the two attenuators with attenuation factors 1/2 and 1/3 have the same spread of 2. A generalized attenuator is then obtained when N number of identical attenuators are connected in cascade. This is modified to derive a digital to analog converter for any radix r.

Share and Cite:

Rathore, T. (2018) Design of Digital to Analog Converters with Arbitrary Radix. Circuits and Systems, 9, 49-57. doi: 10.4236/cs.2018.93005.

Copyright © 2021 by authors and Scientific Research Publishing Inc.

Creative Commons License

This work and the related PDF file are licensed under a Creative Commons Attribution 4.0 International License.