朱洪宇, 李慧云, 徐国卿. 一种基于直方图的ADC静态参数内建自测试设计方案[J]. 微电子学与计算机, 2012, 29(12): 112-115.
引用本文: 朱洪宇, 李慧云, 徐国卿. 一种基于直方图的ADC静态参数内建自测试设计方案[J]. 微电子学与计算机, 2012, 29(12): 112-115.
ZHU Hong-yu, LI Hui-yun, XU Guo-qing. A BIST Scheme Base on Histogram to Test ADC Static Parameters[J]. Microelectronics & Computer, 2012, 29(12): 112-115.
Citation: ZHU Hong-yu, LI Hui-yun, XU Guo-qing. A BIST Scheme Base on Histogram to Test ADC Static Parameters[J]. Microelectronics & Computer, 2012, 29(12): 112-115.

一种基于直方图的ADC静态参数内建自测试设计方案

A BIST Scheme Base on Histogram to Test ADC Static Parameters

  • 摘要: 本文提出了一种基于直方图(Histogram)的内建自测试(BIST)结构来测试ADC的静态参数,包括偏移误差(Offset Error)、增益误差(Gain Error)、积分非线性(INL)和微分非线性(DNL).BIST体系结构主要包括波形生成控制器、一个基于DDS的数字正弦发生器、一个数字三角波发生器和一个CPU核.三角波信号被用来作为激励信号,经过数字三角波发生器和DAC转换而成.这种ADC内建自测试方案可以通过编程实现重配置,主要包括ADC精度(与待测ADC有关)、激励信号波形类型、频率和初始相位.整个BIST通过FPGA开发板来实现,实验结果表明此BIST结构可以有效测试ADC的静态参数.

     

    Abstract: This paper proposes a new built-in self-test(BIST) scheme based on histogram to test analog-to-digital converter(ADC) static parameters,including the Offset Error,the Gain Error,the Integral Non-linearity(INL) and the Differential Non-linearity(DNL).The proposed BIST mainly consists of a waveform generate controller,a direct digital synthesizer(DDS) sine waveform generator,a triangle waveform generator and a CPU core.The triangular wave signal is used as the stimulus,generated by a triangle waveform generator.This ADC BIST scheme features that the waveform,the frequency,the initial phase can be reconfigured through programming.The BIST is implemented on a FPGA development board,and experiment results indicate that the BIST scheme can effectively test static parameters of ADCs.

     

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