a) Design a non-inverting amplifier using an ideal op amp that has a gain 7.5. b) If you wish to amplify signals between -2V and 1.2V using the circuit you designed in part (a) what are the smallest power supply voltages you can use? c) Draw your final circuit diagram.

Delmar's Standard Textbook Of Electricity

7th Edition

ISBN:9781337900348

Author:Stephen L. Herman

Publisher:Stephen L. Herman

Chapter18: Resistive-inductive Parallel Circuits

Section: Chapter Questions

Problem 13PP: In an R-L parallel circuit, IT=1.25 amps, R=1.2k, and XL=1k. Find IR

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Concept explainers

Operational Amplifier

An operational amplifier also called op amp is an integrated circuit or analog circuit that takes input as a differential voltage and produces output as a single-ended voltage. It is an IC that can amplify weak electric signals.An op amp has one output pin and two input pins. The basic role of an opamp is to amplify the voltage difference between the two input voltages. It is also used in filtering or to perform mathematical operations or in signal conditioning.

Question

a) Design a non-inverting amplifier using an ideal op amp that has a gain 7.5.
b) If you wish to amplify signals between -2V and 1.2V using the circuit you designed in part (a) what are
the smallest power supply voltages you can use?
c) Draw your final circuit diagram.
d) Assume that the voltage signal source is vs = −1V and the feedback resistor Rf is replaced with a
variable resistor. Specify the range of Rf (in kΩ ) which will cause the op amp to saturate?

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