Applicability of KVL/KCL to ICs

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Can we apply KVL/KCL to a multi-terminal black boxed component, such as an IC, without knowledge about its internal behavior? Or should we know at least some voltage/current constraints at the terminals?

Thanks.
 

hi,

you have to know the internal characteristics of the ic... Not so easy !
But, if you are working with opamp, you may consider the inputs as high impedance.
 

And it's applicable to transistors. Is there any good reference of advanced analysis topics involving ICs?

Thanks.
 

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