设计的折叠共源共栅vds>vgs-vth却是线性区，vds<vdsat

Apenper · 发表于 2013-12-21 11:24:57

回复 17# feynmancgz

Actually,I don't know why shouldn't use the bias of the cascode,because of the resistance???if i put the mosfet instead of resistance? and can you give me some better solution of bias circuit. i just imitate the book of Alen.

feynmancgz · 发表于 2013-12-21 15:43:05

回复 21# Apenper

As I said, it's ok, but better not use it. Apparently, it's because of the resistor. matching, area, swing....many problems. if you do layout, you will find out that adding a resistor there looks very strange. I didn't insist you to give up using this bias circuit, actually you can. I just don't like it according to my experiences.

Sorry, I can give you some advice, point out the problems you may have, but I won't give you solutions directly.

Apenper · 发表于 2013-12-21 20:32:55

OK , I just try change the bias circuit

sunjianhui · 发表于 2014-3-13 14:55:42

有些乱阿....VDS>VDSAT ,,,保和。

semico_ljj · 发表于 2014-3-13 16:45:05

[讨论] 设计的折叠共源共栅vds>vgs-vth却是线性区，vds<vdsat

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