A novel dynamic element match technique in current-steering DAC

A novel dynamic element match (DEM) named Segmented Thermo Data Weighted Average (STDWA) for the Nyquist-rate current-steering digital to analog converter (DAC) has been presented in this paper. In this method, when the input code changes, it only increase or decrease the chosen unit current source...

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Bibliographic Details
Published in2013 IEEE 10th International Conference on ASIC pp. 1 - 4
Main Authors Baoguang Liu, Yuan Wang, Guangliang Guo, Song Jia, Xing Zhang
Format Conference Proceeding
LanguageEnglish
Published IEEE 01.10.2013
Subjects
CMOS integrated circuits
digital-analog converter (DAC)
Distortion
dynamic element matching (DEM) method
Encoding
Linearity
Noise
Simulation
spurious free dynamic range (SFDR)
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Summary:A novel dynamic element match (DEM) named Segmented Thermo Data Weighted Average (STDWA) for the Nyquist-rate current-steering digital to analog converter (DAC) has been presented in this paper. In this method, when the input code changes, it only increase or decrease the chosen unit current source in order to reduce the signal glitch. Compared with full random DEM technique, this approach can reach a better static performance. Meanwhile, it can eliminate signal dependent distortions to achieve good linearity at high sampling frequencies as well as other DEM implementations.
ISBN:1467364150
9781467364157
ISSN:2162-7541
2162-755X
DOI:10.1109/ASICON.2013.6811898