| 便携式能谱仪高性能USB接口模数转换器 |
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| 引用本文： | 陈国杰,曹辉,曾亚光. 便携式能谱仪高性能USB接口模数转换器[J]. 核电子学与探测技术, 2007, 27(1): 11-14 |
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| 作者姓名： | 陈国杰 曹辉 曾亚光 |
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| 作者单位： | 佛山大学理学院,广东佛山,528000 |
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| 摘 要： | 介绍了一种便携式能谱仪高性能USB接口模数转换器的设计方案。该谱仪的模数转换器采用带采样保持器的14位高速ADC芯片和带USB接口的16位单片机，简化了电路，提高了性能；利用并道技术和软件滑尺均道技术，减少了模数转换微分非线性，具有体积小、精度高、速度快、非线性小等优点，较好地满足了便携式能谱仪的需要。
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| 关 键 词： | 便携式能谱仪 模数转换器 USB接口 单片机 |
| 文章编号： | 0258-0934(2007)01-0011-03 |
| 修稿时间： | 2005-09-23 |
A high performance analog-digital converter with USB interface for portable energy spectrometer |
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| CHEN Guo-jie,CAO Hui,Zeng Ya-guang. A high performance analog-digital converter with USB interface for portable energy spectrometer[J]. Nuclear Electronics & Detection Technology, 2007, 27(1): 11-14 |
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| Authors: | CHEN Guo-jie CAO Hui Zeng Ya-guang |
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| Abstract: | The design of a high performance analog-digital converter with USB interface for portable energy spectrometer is introduced.By taking fast 14-bit ADC with track/hold circuit and 16-bit microcontroller with USB interface,the circuit of the spectrometer analog-digital converter is simplified,and the performance is improved.Meanwhile,the DNL of the analog-digital converter is reduced by use of the technology of channel-combination and software sliding scale.Having the advantages of small size,high resolution,fast conversion and small non-linearity et al.,the spectrometer analog-digital converter can meet the requirement of portable energy spectrometer better. |
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| Keywords: | portable energy spectrometer analog-digital converter USB interface microcontroller |
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