OP設計問題
各位大大您好 , 想請問下小弟用45nm做OP , VDD為0.9V , 我有用p/n type達到Input common mode做出0.2V or 0.7V , 倘若我想做到0.45 , 好像無法讓每個mos都sat. , 〈因為若用每個mos vth約0.45來算,還需加電流鏡overdrive voltage) , 有什麼方法達成嗎?
p.s.倘若我想在某一脈波時間,才使用此OP , 如何將開關加到OP中呢?我有問學長好像有switch OP電路,但我查都沒找到具體的電路圖,有人有經驗可提供一下嗎?先謝謝了!!!
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