| 可编程精密差动测量放大器 |
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| 引用本文： | 林延畅,颜志国,刘佳明.可编程精密差动测量放大器[J].成都理工大学学报(自然科学版),2002,29(2):221-223. |
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| 作者姓名： | 林延畅 颜志国 刘佳明 |
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| 作者单位： | 成都理工大学应用核技术与自动化工程学院,成都,610059 |
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| 摘 要： | 介绍了一种由 DAC电压衰减器作为集成运放反馈电路的低噪声、低漂移、高输入阻抗和高共模抑制比的可编程精密差动测量放大器。LCD显示模块为控制提供友好的人机界面、实时显示放大倍数 ,并提供 GAL可编程逻辑器件构成键盘编码器的方法
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| 关 键 词： | DAC电压衰减器 精密差动放大器 单片机 可编程逻辑器件 |
| 文章编号： | 1005-9539(2002)02-0221-03 |
| 修稿时间： | 2000年11月17日 |
PROGRAMMABLE PRECISION MEASURING DIFFERENTIAL AMPLIFIER |
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| LIN Yan chang,YAN Zhi guo,LIU Jia ming.PROGRAMMABLE PRECISION MEASURING DIFFERENTIAL AMPLIFIER[J].Journal of Chengdu University of Technology: Sci & Technol Ed,2002,29(2):221-223. |
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| Authors: | LIN Yan chang YAN Zhi guo LIU Jia ming |
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| Abstract: | By means of applied technology of IC operational amplifiers, digital to analog converter and single chip microcontroller, a programmable precision measuring differential amplifier with low noise, low drift, high input impedance and high common mode rejection ratio is developed and introduced. A LCD is used to give users a friendly operational interface and the measured parameters and results as well. The programmable logic device GAL acting as a keyboard coder is also presented here. |
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| Keywords: | precision differential amplifier MCU DAC voltage attenuator PLD |
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