Question

sign an inverting op-amp circuit with a voltage gain of Av = Vo/Vi = -8. When the input voltage Vi = -1V, the maximum current in R1 and R2 is no larger than 15mA. Determine

the values of R1 and R2. (Hint: Use the concept of Virtual ground at the inverting input).​

Answer 1

We saw in the last tutorial that the Open Loop Gain, ( AVO ) of an operational amplifier can be very high, as much as 1,000,000 (120dB) or more.