Resolution $\frac{v_{Fs}}{2^{n-1}}$

$20 \times 10^{—13}\frac{v_{Fs}}{2^{n-1}}$

VFs=5.1 v

D= equivalent bof(100000000)=128

$V_{0}=resolution \times D$

$v_{0}=20\times 10^{-3}\times 128$= 2.56v