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可编程增益放大器在海洋环境监测中的应用及其接口
余家栋1
青岛大学
摘要:
文中提出一种性能优良的单片集成数字增益设定器LFl3006/7,它与集成运算放大器组成可编程增益放大器PGA电路,也可组成具有二进制或者十进制等不同增益档次的程序可测控的仪表放大器。微机系统通过接口电路对它实施智能式的增益切换,优化了仪器测量的动态范围和精度,这对人们无法手动干预的环境监测或海洋遥测过程有特殊的意义。
关键词:  可编程增益放大器  反馈电阻网络  电子模拟开关逻辑  端口与中断方式  模拟/数字转换器
DOI：
分类号:
基金项目:
APPLICATIONS OF THE PROGRAMMABLE GAIN AMPLIFIER TO OCEANIC ENVIRONMENTAL MONITORING AND ITS INTERFACE
Abstract:
This paper presents an excellent monolithic integrated digital gain set LF 13006 (or LF13007). It can be combined with an integrated OP-Amplifier as a PGA. Also, it may be constructed as a programmable instrumentation amplifier with binary or decimal gain. Through the interface circuit, the micro computer system gives effect to the intelligent gain interchange for the optimum dynamic testing range and precision. It is specially significant to interfere no-manually an environmental or oceanic process which is being monitored or remotely tested.
Key words:  Backfeed resistance net  Programmable gain amplifier  Electronic analog switch logic Port and interrupt mode  Analog/Digital convertor
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