4-bit digital to analog converter using R-2R ladder and binary weighted resistors

Added Title

Four-bit digital to analog converter using R-2R ladder and binary weighted resistors

College

Gokongwei College of Engineering

Department/Unit

Electronics And Communications Engg

Document Type

Conference Proceeding

Source Title

IOP Conference Series: Earth and Environmental Science

Volume

69

First Page

1

Last Page

6

Publication Date

6-2017

Abstract

The use of a 4-bit digital-to-analog converter using two methods; Binary Weighted Resistors and R-2R Ladder is designed and presented in this paper. The main components that were used in constructing both circuits were different resistor values, operational amplifier (LM741) and single pole double throw switches. Both circuits were designed using MULTISIM software to be able to test the circuit for its ideal application and FRITZING software for the layout designing and fabrication to the printed circuit board. The implementation of both systems in an actual circuit benefits in determining and comparing the advantages and disadvantages of each. It was realized that the binary weighted circuit is more efficient DAC, having lower percentage error of 0.267% compared to R-2R ladder circuit which has a minimum of percentage error of 4.16%.

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Digitial Object Identifier (DOI)

10.1088/1755-1315/69/1/012194

Disciplines

Electrical and Electronics

Keywords

Digital-to-analog converters; Ladder networks; Printed circuits; Operational amplifiers

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