Design an amplifier, using an op-amp with a feedback resistor of 80 kohms, to take voltages V1, V2, V3, V4and to produce an output which is: Vo = -(V1+ 2V2 + 4V3 +
Op Amp Differential Amplifier Circuit | Voltage Subtractor
voltage - Op-Amp Design Resistor Values vs. Actual Values - Gain Calculation - Electrical Engineering Stack Exchange