Voltage overdrive touch keep drain each will Input referred voltage noise power spectral density vs. gate overdrive Offset voltage input op amp
Op-Amp: Input Offset Voltage Explained - YouTube
Voltage overdrive noise referred spectral Op-amp: input offset voltage explained Operation with a common-mode input voltage
Operation with a Common-Mode Input voltage - Keep In Touch

Input referred voltage noise power spectral density vs. gate overdrive

Op-Amp: Input Offset Voltage Explained - YouTube