NDLI: Dynamic element matching in D/A converters with restricted scrambling

Content Provider	IEEE Xplore Digital Library
Author	Vesterbacka, M. Rudberg, M. Wikner, J.J. Andersson, N.U.
Copyright Year	2000
Description	Author affiliation: Dept. of Electr. Eng., Linkoping Univ., Sweden (Vesterbacka, M.)
Abstract	Inaccurate matching of the analog sources in a D/A converter causes a signal-dependent error in the output. This distortion can be transformed into noise by assigning the digital control to the analog sources randomly, which is a technique referred to as dynamic element matching. In this paper, we present a dynamic element matching technique where the scrambling is restricted such that the glitches in the converter are minimized. By this, both the distortion due to glitches is reduced, and the signal-dependent error due to matching is suppressed. A hardware structure is proposed that implements the approach, and the operation of the hardware is described. Simulation results indicate that the method has a potential of yielding as good reduction of glitches as the optimal thermometer-coded converter and a signal-dependent error level that is almost as low as achieved with prior dynamic element matching techniques.
Starting Page	36
Ending Page	39
File Size	418761
Page Count	4
File Format	PDF
ISBN	0780365429
DOI	10.1109/ICECS.2000.911479
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2000-12-17
Publisher Place	Lebanon
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Hardware Nonlinear distortion Jacobian matrices Microelectronics Digital control Digital signal processing Noise reduction Low pass filters Filtering Delay
Content Type	Text
Resource Type	Article

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