题目详情

一个4位T型电阻网络D/A转换电路如下图所示,若取RF=3R,则运放的输出电压Vo为:Vo=VREF/2^4(D3*2^3+D2*2^2+D1*2^1+D0*2^0)。假设VREF电压为12V,为了得到9V的输出电压,D3-D0的二进制值应为()。

中级嵌入式系统设计师,章节练习,嵌入式系统基础知识

  • A.0111
  • B.1001
  • C.1100
  • D.1111

正确答案及解析

正确答案
C
解析

中级嵌入式系统设计师,历年真题,2017年嵌入式系统设计师上午真题卷

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