The op amp in the noninverting amplifier circuit below has an input re

Question

Notify Me Bookmark

The op amp in the noninverting amplifier circuit below has an input resistance of 400 kΩ, an output resistance of 5 kΩ, and an open-loop gain of 20,000 . Assume that the op amp is operating in its linear region. a) Calculate the voltage gain (vo/vg). b) Find the inverting and noninverting input voltages, vn and vp (in millivolts), if vg = 1 V. c) Calculate the difference (vp − vn) in microvolts when vg = 1 V. d) Repeat a) - c) assuming the op amp is ideal.

Image text

The op amp in the noninverting amplifier circuit below has an input resistance of $400 k Ω$ , an output resistance of $5 k Ω$ , and an open-loop gain of 20,000 . Assume that the op amp is operating in its linear region. a) Calculate the voltage gain $(v_{o} / v_{g})$ . b) Find the inverting and noninverting input voltages, $v_{n}$ and $v_{p}$ (in millivolts), if $v_{g} = 1 V$ . c) Calculate the difference $(v_{p} - v_{n})$ in microvolts when $v_{g} = 1 V$ . d) Repeat a) - c) assuming the op amp is ideal.