NDLI: Improved Sayiner level crossing ADC

Content Provider	IEEE Xplore Digital Library
Author	Jungwirth, P.W. Poularikas, A.D.
Copyright Year	2004
Description	Author affiliation: US Army AMCOM, Redstone Arsenal, AL, USA (Jungwirth, P.W.)
Abstract	We present simulations showing the primary distortion in a Sayiner level crossing converter is odd harmonic distortion and examine two methods for improving the performance. A cosine-dither technique is presented. The potential benefits of a hybrid delta sigma level crossing converter are discussed. Nyquist analog-to-digital converters achieve high dynamic range with a large number of quantization levels. Delta sigma oversampling analog-to-digital converters achieve high dynamic range by averaging a large number of coarsely quantized samples together. A zero crossing converter determines the time when the input signal equals a reference signal. A zero crossing converter requires accurate timing to achieve high dynamic range. By combining a small number of quantization levels with zero crossing times, Sayiner's level crossing converter achieves high dynamic range with a fraction of the complexity of a Nyquist converter and requires less accurate timing than a zero crossing converter.
Sponsorship	IEEE Aerospace and Electronic Syst. Soc. IEEE Atlanta Section Georgia Tech Res. Inst
Starting Page	379
Ending Page	383
File Size	507524
Page Count	5
File Format	PDF
ISBN	0780382811
ISSN	00942898
DOI	10.1109/SSST.2004.1295683
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2004-03-16
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Analog-digital conversion Quantization Encoding Dynamic range Voltage Signal processing algorithms Harmonic distortion Timing Sampling methods Pipelines
Content Type	Text
Resource Type	Article

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