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how can we design a cascode amplifier?

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suvendu

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cascode amplifier -patent -folded

how can we design a cascode amplifier?
 

cascoded amplifier

if anyone didn't help u better
try reading MICROELECTRONIC CIRCUITS by Sedra and Smith
 

You can get good reference from book by behzad razavi(intigrate analog circuit)

in brif :
first you generate a differential current (from a diff amp section , whoes tail current source is a cascoded one)
the differential cureent is added to the cascoded output stage ("current steeling principle)

so output of the cascoded stage will give high output impedance hence you get
gain = gm*r²(where r is the outptu impedance of the cascode output stage)
 

this type op amp is very simple. you can look any analog design book, it will show you the detail design.
 

You can get the approach to design the cascode op in Allen's book!
 

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