Hi,
Is there a recommended minimum bias current for the feedback network? I'm trying to minimize the bias current for R1 & R2
without compromising the device function. In the EVM, the bias current is Vout/(R1+R2)=5V/(1Mohm+0.25Mohm)=4uA.
My circuit Vout=2V so I was thinking of using R1=R2=1Mohm, which means the bias current is 1uA. Is this too low? Can I go lower?
-Kelvin