Hai to all ,
what is the use of current reuse technique in LNA design? How can we know the reduced power consumption by using this technique in ADS tool?
I mean, how can we calculate this reduced power consumption by this technique?
what is the difference, when we use current reuse technique in LNA design ?
Less power consumption than an LNA with 2 separate gain stages. Current reuse technique is nothing else than a cascode (dual) stage. Same bias current for both gain stages.
How can we know the reduced power consumption by using this technique in ADS tool?
I mean, how can we calculate this reduced power consumption by this technique?
I have a doubt in following structure.
Fig 1: **broken link removed**
Fig 2: **broken link removed**
Both LNA structures has the same DC path. can we say the first structure is a current reuse structure?
why should we call the fig 2 as a current reuse structure?
what is the diff b/w these 2 structures? Both LNA structures has the same DC path. can we say the first structure is a current reuse structure?
why should we call the fig 2 as a current reuse structure?
The 1st one is a CS-CS cascode stage, the 2nd one a CS-CG cascode stage. Both use the so-called current reuse structure, which is the same as a (non-folded) cascode structure. A single current for 2 gain stages. Or you could say: The bias current of the 1st gain stage is "reused" for the 2nd gain stage.