標題: A Fully Integrated BIST Delta Sigma ADC Using the In-Phase and Quadrature Waves Fitting Procedure
作者: Hung, Shao-Feng
Hong, Hao-Chiao
電機資訊學士班
Undergraduate Honors Program of Electrical Engineering and Computer Science
關鍵字: Delta Sigma modulation;ADC test;analog and mixed-signal (AMS) test;analog-to-digital converter (ADC);built-in self-test (BIST);design-for-testability (DfT)
公開日期: 1-十二月-2014
摘要: This paper demonstrates a fully integrated builtin self-test (BIST) Delta Sigma analog-to-digital converter (ADC) based on the proposed in-phase and quadrature waves fitting (IQWF) procedure. The IQWF procedure enables accurately measuring the phases and amplitudes of test responses so as to enhance the test accuracy of the BIST circuitry. The all-digital BIST circuitry, with on-chip stimulus generator and response analyzer, conducts single-tone functional tests to test for the ADCs characterization results such as signal-to-noise-and-distortion ratio (SNDR), dynamic range (DR), frequency response, input-referred offset, and gain error. Since the IQWF procedure is performed successively in real time, the BIST circuitry does not need huge memory to store all the output samples like conventional fast Fourier transform (FFT) analysis does. The overall hardware overhead only consists of 16.6 k digital gates. The fully integrated BIST Delta Sigma ADC has been fabricated in 0.18-mu m CMOS. Measurement results show that the BIST circuitry reports a peak SNDR of 88.0 dB and a DR of 92.6 dB while the corresponding FFT-based analog tests result in 88.8 and 94.1 dB, respectively. Particularly, the BIST circuitry achieves a test bandwidth as wide as the ADCs 20-kHz rated bandwidth, which is the widest to the best of our knowledge. The proposed BIST ADC can be tested without costly external test resources and is thus well suited for the applications in which conventional test resources are not available such as 3-D ICs.
URI: http://dx.doi.org/10.1109/TIM.2014.2322714
http://hdl.handle.net/11536/123880
ISSN: 0018-9456
DOI: 10.1109/TIM.2014.2322714
期刊: IEEE TRANSACTIONS ON INSTRUMENTATION AND MEASUREMENT
Volume: 63
Issue: 12
起始頁: 2750
結束頁: 2760
顯示於類別:期刊論文


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  1. 000345067400005.pdf