A 16-bit D/A interface with sinc approximated semidigital reconstruction filter and reduced number of coefficients

M. A.T. Sanduleanu, A. J.M. Van Tuijl, R. F. Wassenaar, H. Wallinga

Research output: Contribution to journalConference articlepeer-review

Abstract

Due to components nonidealities, the analog reconstruction is the most difficult analog building block in a D/A converter. The paper presents a 16-bit D/A interface with a current driven semidigital filter and reduced number of coefficients. To optimise the number of coefficients an iterative method based on Sinc approximation has been used. With only 25 coefficients we get more than 50dB stopband rejection of noise. A differential solution is proposed to reduce the digital crosstalk and to increase the output swing. The D/A interface has been realised on chip in a 0.8μm CMOS 5V technology. S/N+THD measurements are provided.

Original languageBritish English
Article number1470995
Pages (from-to)180-183
Number of pages4
JournalEuropean Solid-State Circuits Conference
DOIs
StatePublished - 1998
Event24th European Solid-State Circuits Conference: Challenges for the Next Millennium, ESSCIRC 1998 - The Hague, Netherlands
Duration: 22 Sep 199824 Sep 1998

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