題組內容

2. A difference-amplifier circuit in Fig. 2 has \(R_1= R_3=2 \text{ k}\Omega\) and \(R_2= R_4=200 \text{ k}\Omega\).

(c) If the resistors have 1% tolerance (i.e., each can be within \(\pm 1\%\) of its nominal value), find the worst-case common-mode gain \(A_{cm}\) and the corresponding value of CMRR.