Continue to Site

Welcome to EDAboard.com

Welcome to our site! EDAboard.com is an international Electronics Discussion Forum focused on EDA software, circuits, schematics, books, theory, papers, asic, pld, 8051, DSP, Network, RF, Analog Design, PCB, Service Manuals... and a whole lot more! To participate you need to register. Registration is free. Click here to register now.

Estimaing the gain from a grapf for a invertng amplifier

Status
Not open for further replies.

Englewood

Full Member level 3
Joined
Nov 2, 2014
Messages
178
Helped
0
Reputation
0
Reaction score
0
Trophy points
16
Activity points
1,294
Estimating the gain from a graph for a invertng amplifier

Untitled.jpg

How do I estimate the gain from this graph.

Its a graph of a inverting amplifier!
 
Last edited:

Re: Estimating the gain from a graph for a invertng amplifier

From basic Calculus, the partial derivative is the slope , measured from any graph by Δy/Δx.

For ease of mental calculations, use an Δx integer or the intercepts on the X axis to view the Δy difference.

One can also average the slope from multiple points to improve accuracy of reading graph.

If random estimate/measurement errors , the result is improved by root of number of samples is from statistics or drawing a straight line and extend the line to both axes.

This method is also used to measure active component effective series resistance (ESR) when saturated from V-I curve.
 
Last edited:
I simply noticed that with 1V in the output is about 2.2V. For 2V in the output is about 4.4V. For 3V in the output is about 6.6V.
Then simple arithmetic calculates the gain to be about 2.2 times.
 

Status
Not open for further replies.

Part and Inventory Search

Welcome to EDABoard.com

Sponsor

Back
Top