The low-pass filter in Fig. 12.69 is implemented using a 25-pF capacitor and OTAs with a g_{m} - I_{ABC} sensitivity of 20, a maximum g_{m} of 1 mS, and 3 decades of range. Find the required bias currents for the filter transfer function:
\frac{V_{O}}{V_{in}}=\frac{4}{\frac{jω}{2\pi(10^{5})} + 1 } 12.87