2 Figure 3 shows an operational amplifier circuit with two current sources tomodel its bias currents. The op-amp can be considered as ideal.1,-10µAViRxVoR2I-10µAR1Figure 3The gain of the amplifier is 30dB, R1=10KQ, determine the resistancevalue of R2.Determine the output voltage of the amplifier for Vi=0.1V, Rx=00.Determine the value of Rx so that no bias current error appears atthe output of the amplifier

Solution- (i) gain in dB = 30 dB (Taking antilog then ) 20 log10 AV = 30…

Answered: Figure 3 shows an operational amplifier…

Figure 3 shows an operational amplifier circuit with two current sources to model its bias currents. The op-amp can be considered as ideal. I-10µA Vi w Rx Vo

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

2 Figure 3 shows an operational amplifier circuit with two current sources to
model its bias currents. The op-amp can be considered as ideal.
1,-10µA
Vi
Rx
Vo
R2
I-10µA
R1
Figure 3
The gain of the amplifier is 30dB, R1=10KQ, determine the resistance
value of R2.
Determine the output voltage of the amplifier for Vi=0.1V, Rx=00.
Determine the value of Rx so that no bias current error appears at
the output of the amplifier

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