作者deathcustom ()
站内Electronics
标题Re: [问题]请问 有关hspice问题
时间Tue Jan 8 17:58:41 2008
根据每一项给你一些提示
※ 引述《ikju (小阳)》之铭言:
: Using TSMC 0.35um process with single supply voltage
: VDD=3V and load capacitance CL=5pF via HSPICE
: design a differential input single-ended
: output operational amplifier having
: the following specifications:
: open-loop gain: 80dB
large open-loop gain:
1st stage: cascode/telescope/folded cascode
2nd stage: common-source with active load
: . unity-gain frequency: 10MHz
for 60deg PM,
BW2 = 2.5 GBW
: . input common-mode range: 2V
that is, 0.5V~2.5V
请参照Razavi 第九章
选择folded cascode, rail-to-rail
: . output voltage swing: 2V
Vo: 0.5V~2.5V
|Vgs| of both MOS: 1V
: . power dissipation: 3mW
total current: 1mA
=> I2 = 700uA~800uA
剩下的请用在folded cascode rail-to-rail
: . CMRR: 70dB
large L of current source
: 请问有人会设计吗
: 符合一两个条件就可以了
: 谢谢回答
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不用layout这样的OP两天内应该可以完成
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※ 编辑: deathcustom 来自: 220.135.83.97 (01/08 18:00)
1F:推 ikju:谢谢你回答 01/08 20:34
2F:推 phylin:是DC! 01/08 23:51
3F:→ deathcustom:二楼的强者今天来帮我LAYOUT吧O_Q 01/09 05:19
4F:推 mpthree:OP作的好 要饭要到老,analog电路基础,所以要好好学!! 01/09 21:43