OZZAA
Member level 1
![Member level 1](/styles/images/ranks/dlevel1.gif)
I found that many desigers put a series resistance with the gate terminal of the cascode amplifiers.
as shown in the attached figure (circled by red circles)
![Untitled.png Untitled.png](https://www.edaboard.com/data/attachments/88/88709-73faf8b1c82dad7cd7094069f0d434a2.jpg)
Is that only for increasing the stability factor?
or it has other functions.
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if the stability are already considered.
we can remove this resistance as shown in the following cascode circuit (circled by red circle).
![Untitled1.png Untitled1.png](https://www.edaboard.com/data/attachments/88/88712-2f541f3d1e520df1386ba2231848cca3.jpg)
Thanks in advance
as shown in the attached figure (circled by red circles)
![Untitled.png Untitled.png](https://www.edaboard.com/data/attachments/88/88709-73faf8b1c82dad7cd7094069f0d434a2.jpg)
Is that only for increasing the stability factor?
or it has other functions.
-------------------------------------------------------------
if the stability are already considered.
we can remove this resistance as shown in the following cascode circuit (circled by red circle).
![Untitled1.png Untitled1.png](https://www.edaboard.com/data/attachments/88/88712-2f541f3d1e520df1386ba2231848cca3.jpg)
Thanks in advance