D 2.20 (a) Design an inverting amplifier with a closed-loop gain of −200 V/V and an input resistance of 1 k. (b) If the op amp is known to have an open-loop gain of 5000 V/V, what do you expect the closed-loop gain of your circuit to be (assuming the resistors have precise values)? (c) Give the value of a resistor you can place in parallel (shunt) with R1 to restore the closed-loop gain to its nominal value. Use the closest standard 1% resistor value (see Appendix J).

20 - D 2.20 (a) Design an inverting amplifier with a closed-loop gain of −200 V/V and an input resistance of 1 k. (b) If the op amp is known to have an open-loop gain of 5000 V/V, what do you expect the closed-loop gain of your circuit to be (assuming the resistors have precise values)? (c) Give the value of a resistor you can place in parallel (shunt) with R1 to restore the closed-loop gain to its nominal value. Use the closest standard 1% resistor value (see Appendix J).

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images - D 2.20 (a) Design an inverting amplifier with a closed-loop gain of −200 V/V and an input resistance of 1 k. (b) If the op amp is known to have an open-loop gain of 5000 V/V, what do you expect the closed-loop gain of your circuit to be (assuming the resistors have precise values)? (c) Give the value of a resistor you can place in parallel (shunt) with R1 to restore the closed-loop gain to its nominal value. Use the closest standard 1% resistor value (see Appendix J).

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