请教这个放大器的小信号增益表达式怎么写?
时间:10-02
整理:3721RD
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看一下拉扎维吧
还挺多的管子,差分对,电流漏负载,偏置电路,调零电阻,补偿电容
还挺多的管子,差分对,电流漏负载,偏置电路,调零电阻,补偿电容
Av=gm1*(ro2//ro4)*gm11*[ro11//(gm8*ro8*gm9*ro9*gm10*ro10)]*(1+s*Cc/(1/gm11-Rz))/[(1+s/p1)(1+s/p2)]
It's basic to derive it and above equation is just a appropriate result.
The compensation part is just related to the frequency response, you can get the DC gain just setting s=0.
About how to derive it, basicly multiply the total gain stages based on the gain of every stage.