Title :
R/2R/sup +/ digital-analog converter (DAC)
Author :
Z. Mijanovic;R. Dragovic-Ivanovic;L. Stankovic
Author_Institution :
Elektrotechnicki Fakulte, Montenegro Univ., Yugoslavia
Abstract :
The most commonly used converter in digital-analog conversion is the one with an R/2R ladder circuit. Accurate digital-analog converters (DAC) require extremely precise resistors. Although the trimming procedure is used to adjust the desired resistors´ ratio, aging and environmental factors affect the accuracy and linearity of a converter, thus introducing random conversion errors and reducing the converter´s applicability. With low precision resistors available, a new DAC design is proposed, based on a R/2R/sup +/ ladder circuit, where high converter precision is achieved due to better coverage of the analog range.
Keywords :
"Digital-analog conversion","Resistors","Voltage","Calibration","Analog-digital conversion","Switches","Linearity","Switching circuits","Integrated circuit technology","Integrated circuit manufacture"
Conference_Titel :
Instrumentation and Measurement Technology Conference, 1996. IMTC-96. Conference Proceedings. Quality Measurements: The Indispensable Bridge between Theory and Reality., IEEE
Print_ISBN :
0-7803-3312-8
DOI :
10.1109/IMTC.1996.507322
