DocumentCode
1206119
Title
A Current-Comparator-Based 20-Bit Digital-to-Analog Converter
Author
So, Eddy
Issue
2
fYear
1985
fDate
6/1/1985 12:00:00 AM
Firstpage
278
Lastpage
282
Abstract
A current-comparator technique for obtaining a 20-bit digital-to-analog converter (DAC) is described. A self-balancing dc comparator is used to establish currents proportional to a reference quantity. The code weight of each input bit is established through turns on a magnetic core rather than by a resistor ladder network. The converter has a full-scale voltage output of 10 V, a linearity error of less than 1 ppm of full scale, and a settling time of approximately 6 ms.
Keywords
Analog-digital conversion; Circuits; Councils; Detectors; Digital-analog conversion; Magnetic cores; Magnetic materials; Open loop systems; Resistors; Voltage;
fLanguage
English
Journal_Title
Instrumentation and Measurement, IEEE Transactions on
Publisher
ieee
ISSN
0018-9456
Type
jour
DOI
10.1109/TIM.1985.4315324
Filename
4315324
Link To Document