Dynamic compensation of digital to analog converters

被引：0
|
作者：
Riley, KJ [1 ]
Hummels, DM [1 ]
Irons, FH [1 ]
Rundell, A [1 ]
机构：
[1] Univ Maine, Orono, ME 04469 USA
来源：
IMTC/99: PROCEEDINGS OF THE 16TH IEEE INSTRUMENTATION AND MEASUREMENT TECHNOLOGY CONFERENCE, VOLS. 1-3 | 1999年
关键词：
D O I：
暂无
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
High accuracy Digital to Analog Converters (DACs) are becoming increasingly important as the use of digital signal processing in communications becomes more common. DACs translate a digital sequence into an analog current or voltage output. This translation is not ideal and the DAC introduces some harmonic error at its output. This paper develops a model for DAC harmonic error explores a lowpass calibration scheme for measuring DAC errors, and develops a scheme for compensation of these errors. Simulated results reveal the system is capable of compensating dynamic DAC errors that produce energy in the lowpass calibration band. Hardware results show that harmonic distortion is reduced using this compensation scheme, but some dynamic errors present in the DAC produce little energy in the calibration band and are not compensated.
引用
收藏
页码：1310 / 1315
页数：6
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