The discussion revolves around the differences observed between simulated and practical results of an instrumentation amplifier, specifically focusing on the gain values obtained in both scenarios. Participants explore potential reasons for the discrepancy in gain, which is a technical inquiry related to circuit design and testing.
Participants express uncertainty about the exact causes of the gain discrepancy, with multiple potential factors being discussed without reaching a consensus.
Limitations include the absence of schematic and simulation details, which may hinder a comprehensive analysis of the gain differences. The discussion also highlights the ideal versus practical performance of components in circuit design.
Readers interested in instrumentation amplifiers, circuit design, and the practical implications of simulation results may find this discussion relevant.
Can you post the schematic and simulation? And show how you are building and testing the circuit?nothing909 said:Homework Statement
I just have a simple question to ask. I'm simulating an instrumentation amplifier and then testing it practically. When I simulate it, my gain is 6, but when I test it, I get a gain of 5.54. I'm just wondering what is causing the slight drop in gain in the practical results?
It's just a pretty big error, so I just wanted to see what you did.nothing909 said:I've not got the schematic and simulation to show right now, it's just a basic 3 op amp instrumentation amplifier. do you need them to answer my question and if so, why?
i know the simulation results are ideal, but what factors in a practical test could cause the gain to drop a little?