need of a current conveyor

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fly1

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why do we need a current conveyor?
the current can also be directly given to a circuit as an input, why then we use the CC block?
 

fly1 said:
why do we need a current conveyor?
the current can also be directly given to a circuit as an input, why then we use the CC block?
Click to expand...

I don`t understand the second line of your question.
Nevertheless, here is my answer to the first part:

A CC is an active circuit like opamp, Current-feedback amplifier (CFA) and OTA.
As such, it is very versatile block which can be - and is - used for realizing active filters and oscillators.
There are many published papers describing such applications.
 

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