【摘要】：提出一種高精度數(shù)控寬帶直流放大器的設(shè)計(jì)方案。該方案基于超低功耗單片機(jī)MSP430F155控制平臺(tái)開發(fā),其中,壓控增益寬帶放大器的主體部分由THS7530、OPA820ID與THS3091D組成�？刂破脚_(tái)可實(shí)現(xiàn)對THS7530的增益控制,輸出終波幅值并顯示結(jié)果;測試通頻帶為0~20 MHz;整機(jī)電壓增益可調(diào)范圍控制在-20~+80 dB范圍內(nèi);在掛載時(shí)輸出F-F值為29 V。在降低輸出噪聲與自激控制方面,使用多�？垢蓴_接觸法,提升了數(shù)控寬帶直流放大器控制性和穩(wěn)定性。
[Abstract]:A design scheme of high precision CNC broadband DC amplifier is proposed. The scheme is based on the MSP430F155 control platform of ultra-low power single chip microcomputer, in which the main part of the voltage control gain broadband amplifier is composed of THS7530,OPA820ID and THS3091D. The control platform can control the gain of THS7530, output the amplitude of final wave and display the result; the adjustable range of voltage gain of the whole machine is controlled in the range of-20 ~ 80 dB, and the output F 鈮，

本文編號(hào)：2503495