Study of R2R 4-Bit and 8-Bit DAC circuit using Multisim TechnologyJournal: International Journal of Science and Research (IJSR) (Vol.2, No. 5)
Publication Date: 2013-05-05
Authors : Raghavendra. R; S.A Hariprasad; M.Uttara Kumari;
Page : 229-233
Keywords : R2R Ladder; DAC; Staircase; Multisim; Counter;
An R-2R Ladder is a simple and inexpensive way to perform digital to analog conversion, using repetitive arrangements of precision resistor networks in a ladder-like configuration. The application of Multisim for realizing R2R DAC bridges the gap between theory and the real circuits. This paper provides a detailed view of a 4 bit and an 8 bit R2R ladder with optimum accuracy by using Multisim. Experiments are performed on 4 bit and 8 bit R2R ladder with decade counter (staircase) and the accuracy of Theoretically experimented and Multisim experimented scenarios are compared. The comparison shows higher range of accuracy is obtained when R2R ladder is experimented in Multisim, Multisim offers additional features such as ease of implementation rebuild and cost reduction when compared to practical simulation of R2R ladder.
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