| 可编程仪表放大器的优化设计 |
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| 引用本文： | 沙占友,安国臣,于国庆.可编程仪表放大器的优化设计[J].电测与仪表,2007,44(6):37-39. |
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| 作者姓名： | 沙占友 安国臣 于国庆 |
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| 作者单位： | 河北科技大学,信息科学与工程学院,石家庄,050054 |
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| 摘 要： | 可编程仪表放大器的特点是可通过单片机对其增益调节范围进行编程.近年来随着数字电位器的迅速发展和推广应用,为实现可编程仪表放大器的优化设计创造了条件.本文首先介绍数字电位器的基本原理,然后重点阐述可编程仪表放大器的电路设计及应用实例,最后介绍了一种双向可编程增益放大器的设计.
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| 关 键 词： | 数字电位器 可编程 仪表放大器 增益 |
| 文章编号： | 1001-1390（2007）06-0037-03 |
| 修稿时间： | 2007-01-30 |
The optimizing design of the programmable instrumentation amplifier |
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| SHA Zhan-you,An Guo-chen,YU Guo-qing.The optimizing design of the programmable instrumentation amplifier[J].Electrical Measurement & Instrumentation,2007,44(6):37-39. |
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| Authors: | SHA Zhan-you An Guo-chen YU Guo-qing |
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| Abstract: | The feature of the programmable instrumentation amplifier is that the gain adjustment range can be setup by single chip microcomputer.With the development and application of the digitally controlled potentiometers(DCP) recently,it is possible to realizing the optimizing design of the programmable instrumentation amplifier.This paper firstly introduces the principle of the DCP.And then expatiates the circuit design and application example of the programmable instrumentation amplifier.Finally a type of bi-direction programmable gain amplifier is introduced. |
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| Keywords: | digitally controlled potentiometers programmable instrumentation amplifier gain |
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