Given $V_{D D}=3 \mathrm{~V}$ and using $I_{\text {REF }}=100 \mu \mathrm{~A}$, it is required to design the circuit of the provided circuit image to obtain an output current whose nominal value is $100 \mu \mathrm{~A}$. Find $R$ if $Q_1$ and $Q_2$ are matched and have channel lengths of $1 \mu \mathrm{~m}$, channel widths of $10 \mu \mathrm{~m}, V_t=0.7 \mathrm{~V}$, and $k_n^{\prime}=200 \mu \mathrm{~A} / \mathrm{V}^2$. What