$$e_2 = \dfrac{R_2}{R_1}e_1$$

$$e_2 = \dfrac{R_1}{R_2}e_1$$

$$e_2 = -\dfrac{R_2}{R_1}e_1$$

$$e_2 = -\dfrac{R_1}{R_2}e_1$$

$$-a_1X_1-a_2X_2$$

$$a_1X_1+a_2X_2$$

$$(a_1+a_2)(X_1+X_2))$$

$$-(a_1-a_2)(X_1+X_2))$$

$$E_o = Z_o \left( \dfrac{E_1}{Z_1} + \dfrac{E_2}{Z_2} \right)$$

$$E_o = -Z_o \left( \dfrac{E_1}{Z_1} + \dfrac{E_2}{Z_2} \right)$$

$$E_o = Z_o \left( \dfrac{E_1}{Z_2} + \dfrac{E_2}{Z_2} \right)$$

$$E_o = -Z_o \left( \dfrac{E_1}{Z_2} + \dfrac{E_2}{Z_2} \right)$$

$$V_0 = \dfrac{R_0}{3R} (V_1+V_2+V_3)$$

$$V_0 = \dfrac{R}{R_0} (V_1+V_2+V_3)$$

$$V_0 = \dfrac{R_0}{R} (V_1+V_2+V_3)$$

$$V_0 = -\dfrac{R_0}{R} (V_1+V_2+V_3)$$

전압 이득이 매우 크다.

입력 인피던스가 매우 작다

전력 이득이 매우 크다.

입력 인피던스가 매우 크다

가산기

미분기

적분기

제한기

$$\dfrac{A}{s-B}$$

$$\dfrac{A}{s+B}$$

$$\dfrac{B}{s+A}$$

$$\dfrac{B}{s-A}$$

$$V_0 = -12 \dfrac{dV_i}{dt}$$

$$V_0 = -8 \dfrac{dV_i}{dt}$$

$$V_0 = -0.5 \dfrac{dV_i}{dt}$$

$$V_0 = -\dfrac{1}{8} \dfrac{dV_i}{dt}$$

$$e_0 = - \dfrac{1}{RC} \int{e_i dt}$$

$$e_0 = - \dfrac{1}{RC}\dfrac{de_i}{dt}$$

$$e_0 = -{RC} \int{e_i dt}$$

$$e_0 = - \dfrac{C}{R} \int{e_i dt}$$

$$-2 \dfrac{d}{dt}c(t) + c(t) = 10r(t)$$

$$-0.5 \dfrac{d}{dt}c(t) + c(t) = 10r(t)$$

$$2 \dfrac{d}{dt}c(t) + c(t) = 10r(t)$$

$$\dfrac{d}{dt}c(t) + 2c(t) = 5r(t)$$