An expression for output voltage should be determined for the circuit shown below. Concept introduction: The given circuit represents an integrator. Here we have two inputs v 1 and v 2 and the respective currents be i 1 and i 2 . Since input current flowing into the op-amp is zero, we have the current flowing through the feedback loop, i f . Hence, i 1 + i 2 = i f Expressing the currents in terms of input and output voltages in the expression gives the final output voltage.

BuyFind

Principles of Instrumental Analysis

7th Edition
Douglas A. Skoog + 2 others
Publisher: Cengage Learning
ISBN: 9781305577213
BuyFind

Principles of Instrumental Analysis

7th Edition
Douglas A. Skoog + 2 others
Publisher: Cengage Learning
ISBN: 9781305577213

Solutions

Chapter 3, Problem 3.19QAP
Interpretation Introduction

Interpretation:

An expression for output voltage should be determined for the circuit shown below.

Principles of Instrumental Analysis, Chapter 3, Problem 3.19QAP

Concept introduction:

The given circuit represents an integrator. Here we have two inputs v1 and v2 and the respective currents be i1 and i2. Since input current flowing into the op-amp is zero, we have the current flowing through the feedback loop, if. Hence,

i1+i2=if

Expressing the currents in terms of input and output voltages in the expression gives the final output voltage.

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