¹ The VLSI Institute of Henan University of Technology, Zhengzhou, China
² College of Electrical Engineering, Henan University of Technology, Zhengzhou, China

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Abstract—A Sigma-Delta audio digital-to-analog (D/A) converter with a noise-shaping dynamic element matching (NSDEM) technique is presented. The proposed NSDEM technique has the advantage of less computation and also can be implemented with all-digital circuits easily. The converter is fabricated in a 0.35 μm CMOS process, occupies 2.85 mm2, and achieves 105 dB dynamic range - 101 dB total harmonic distortion plus noise.

Index Terms—NSDEM, multi-bit switched capacitor DAC, Sigma-Delta, tree structure, RISC

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Cite: Hui Feng and Zeqi Yu, " A 105 dB DR, -101 dB THD+N Sigma-Delta Audio D/A Converter with A Noise-shaping Dynamic Element Matching Technique," Journal of Computers vol. 5, no. 2, pp. 194-201, 2010.