ICdesignerbeginner
Member level 5
Hi
I want to design very low transconductance in nA/V. For that I came across one research article suing series parallel combination of NMOS. I can undertsand that using parallel transistors reduces the current by splitting and flowing through ground but what is the purpose of series transistors? Can some one help me in understanding how series transistors are helping in reducing the transconductance. I am attaching the figure of series parallel OTA.
I want to design very low transconductance in nA/V. For that I came across one research article suing series parallel combination of NMOS. I can undertsand that using parallel transistors reduces the current by splitting and flowing through ground but what is the purpose of series transistors? Can some one help me in understanding how series transistors are helping in reducing the transconductance. I am attaching the figure of series parallel OTA.