Closed Loop Voltage Gain Of An Instrumentation Operational Amplifier
TECTechnics Classroom   TECTechnics Overview

Expressions Of Pj Problems
Closed Loop Voltage Gain Of An Instrumentation Operational Amplifier

Instrumentation Op-Amp

Figure 13.1 illustrates the instrumentation operational amplifier (IA).
Find the closed loop voltage gain of the instrumentation amplifier. Assume the op-amp is an ideal op-amp.

The strings: S7P5A51 (change - physical).

The math:
Pj Problem of Interest is of type change (physical - change).

Instrumentation Op-Amp

Instrumentation Op-Amp Lower Input

Consider figures 13.1 and 13.2. In figure 13.2, R1 of figure 13.1 is halved and each of the first two operational amplifier is treated independently as a non-inverting operational amplifier. So, the output of each of the non-inverting op-amp with input V1 and V2 is an input to the second stage of the instrumentation amplifier. If the op-amp is an ideal op-amp then:
The voltage gain of each of the non-inverting operational amplifier = (1 + R2/(R1/2) = 1 + 2R2/R1.
The op-amp of the second stage is a differential amplifier and the inputs are:
(1 + 2R2/R1)V1 and (1 + 2R2/R1)V2.
So, for an ideal differential op-amp:
Output voltage, Vout = (RF/R)(1 + 2R2/R1)(V1 - V2)
So, closed loop gain of instrumentation amplifier = Av = Vout/(V1 - V2) = (RF/R)(1 + 2R2/R1)


The point . is a mathematical abstraction. It has negligible size and a great sense of position. Consequently, it is front and center in abstract existential reasoning.
Derivation Of The Area Of A Circle, A Sector Of A Circle And A Circular Ring
Derivation Of The Area Of A Trapezoid, A Rectangle And A Triangle
Derivation Of The Area Of An Ellipse
Derivation Of Volume Of A Cylinder
Derivation Of Volume Of A Sphere
Derivation Of Volume Of A Cone
Derivation Of Volume Of A Torus
Derivation Of Volume Of A Paraboloid
Volume Obtained By Revolving The Curve y = x2 About The X Axis
Single Variable Functions
Absolute Value Functions
Real Numbers
Vector Spaces
Equation Of The Ascent Path Of An Airplane
Calculating Capacity Of A Video Adapter Board Memory
Probability Density Functions
Boolean Algebra - Logic Functions
Ordinary Differential Equations (ODEs)
Infinite Sequences And Series
Introduction To Group Theory
Advanced Calculus - Partial Derivatives
Advanced Calculus - General Charateristics Of Partial Differential Equations
Advanced Calculus - Jacobians
Advanced Calculus - Solving PDEs By The Method Of Separation Of Variables
Advanced Calculus - Fourier Series
Advanced Calculus - Multiple Integrals
Production Schedule That Maximizes Profit Given Constraint Equation
Separation Of Variables As Solution Method For Homogeneous Heat Flow Equation
Newton And Fourier Cooling Laws Applied To Heat Flow Boundary Conditions
Fourier Series
Derivation Of Heat Equation For A One-Dimensional Heat Flow

The Universe is composed of matter and radiant energy. Matter is any kind of mass-energy that moves with velocities less than the velocity of light. Radiant energy is any kind of mass-energy that moves with the velocity of light.
Periodic Table
Composition And Structure Of Matter
How Matter Gets Composed
How Matter Gets Composed (2)
Molecular Structure Of Matter
Molecular Shapes: Bond Length, Bond Angle
Molecular Shapes: Valence Shell Electron Pair Repulsion
Molecular Shapes: Orbital Hybridization
Molecular Shapes: Sigma Bonds Pi Bonds
Molecular Shapes: Non ABn Molecules
Molecular Orbital Theory
More Pj Problem Strings

What is Time?
St Augustine On Time
Bergson On Time
Heidegger On Time
Kant On Time
Sagay On Time
What is Space?
Newton On Space
Space Governance
Imperfect Leaders
Essence Of Mathematics
Toolness Of Mathematics
The Number Line
The Windflower Saga
Who Am I?
Primordial Equilibrium
Primordial Care
Force Of Being

Blessed are they that have not seen, and yet have believed. John 20:29

TECTechnic Logo, Kimberlee J. Benart | © 2000-2021 | All rights reserved | Founder and Site Programmer, Peter O. Sagay.