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数据放大器一般由复杂的分离元件电路或多个集成运算放大器组成。本文讨论了设计数据放大器的几种可采用的主要方案,论述了用单个的运算放大器也能做成一台满足精度要求的数据放大器,且兼任有源低通滤波器。从而可大大增加可靠性,降低成本,减小体积,本文还介绍了有关的参数计算公式和实验结果。
Data amplifiers typically consist of complex discrete component circuits or multiple integrated op amps. This article discusses several design options available main data amplifier, discusses the use of a single operational amplifier can also be made to meet the accuracy of a data amplifier, and serves as an active low-pass filter. Which can greatly increase the reliability, reduce costs, reduce size, this article also introduced the parameters of the formula and experimental results.