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首页> 外文会议>2012 Third International Conference on Computing Communication amp; Networking Technologies. >Design and modeling of a continuous-time delta-sigma modulator for biopotential signal acquisition: Simulink vs. Verilog-AMS perspective
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Design and modeling of a continuous-time delta-sigma modulator for biopotential signal acquisition: Simulink vs. Verilog-AMS perspective

机译：用于生物电势信号采集的连续时间delta-sigma调制器的设计和建模：Simulink与Verilog-AMS的对比

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摘要

In the current trend of short time-to-market and complex circuits and systems containing billions of nanoscale transistor, fast and accurate time-domain simulations are crucial for analog and mixed-signal (AMS) design and verification. This will ensure reduction in the non-recurrent cost and make electronics cheaper. In this paper, in order to investigate the options for fast and accurate simulations, two popular modeling tools and languages (Simulink and Verilog-AMS) capable of constructing behavioral models are evaluated. A delta-sigma modulator design with biomedical applications is used as a case study. The system-level design of a third-order, feedforward continuous-time (CT) delta-sigma modulator (DSM) with a signal-to-noise ratio (SNR) of 87.3 dB and 20 kHz input bandwidth is presented. This CT DSM is to be employed in an analog-to-digital converter (ADC) targeting several portable biomedical applications which require a 10 kHz signal bandwidth and higher than 10-bit resolution. Simulink and Verilog-AMS were used throughout the design. The efficiency are compared in terms of modeling effort, simulation performance, and accuracy.
机译：在当前的上市时间短且电路和系统包含数十亿个纳米级晶体管的系统的趋势下，快速，准确的时域仿真对于模拟和混合信号（AMS）设计和验证至关重要。这将确保减少非经常性费用并使电子产品更便宜。在本文中，为了研究快速准确的仿真选项，评估了两种能够构建行为模型的流行建模工具和语言（Simulink和Verilog-AMS）。具有生物医学应用的delta-sigma调制器设计用作案例研究。提出了具有87.3 dB信噪比（SNR）和20 kHz输入带宽的三阶前馈连续时间（CT）Δ-Σ调制器（DSM）的系统级设计。该CT DSM将被用于针对数个便携式生物医学应用的模数转换器（ADC），这些应用需要10 kHz信号带宽和高于10位的分辨率。 Simulink和Verilog-AMS用于整个设计。在建模工作量，仿真性能和准确性方面对效率进行了比较。

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