For the transistors in the diff-amp in Figure 14.19, the conduction parameters can be written as (150(1+x)

Question:

For the transistors in the diff-amp in Figure 14.19, the conduction parameters can be written as $150(1+x) \mu \mathrm{A} / \mathrm{V}^{2}$, where $x$ represents the deviation from the ideal due to variations in electrical and geometric characteristics. (The value of $x$ is positive for one transistor and negative for the other transistor.) Assume $I_{Q}=200 \mu \mathrm{A}$ and $V_{T N 1}=V_{T N 2}=0.4 \mathrm{~V}$. Determine the maximum value of $x$ such that the maximum offset voltage is limited to $V_{O S}=15 \mathrm{mV}$.

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