[問題] bandgap中的電阻問題?
最近在研究bandgap的設計,
發現好像無論用哪種架構都必須掛上被動元件的電阻,
但就我之前得到的資訊,
在IC中用被動元件的方式所實現的電阻是不穩定的(易受製程變異影響),
請問這個觀念是正確的嗎?
另外有沒有將這個被動電阻改用主動元件實現的相關研究呢(比如說要打的關鍵字)?
感謝~~
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