AZL Book: Electrical Math - OpAmp Functionality
I remember reading somewhere (I believe it was in the OpAmp Handbook, by Texas Instruments) that the OpAmp was created by someone in the telephone industry, long ago, who was trying to solve the issue of signal degradation over the length of the phone lines. Cool! Either way, these clever little circuit blocks have become integral to all things we know and love today. Well, not sunsets, puppies, love, happiness, community, friendship, etc, but you know what I mean.
The above mentioned handbook has all kinds of cool examples of what can be accomplished with these little buggers. Here, all I wanted to do was create a brief record on how they function and what can be expected to come out, given a particular input.
For Vs+ and Vs- connections on top and bottom, the diagram at the top right is most descriptive, these are the rails; they set the min and max voltage values. The others are where things get a little frisky, because their functionality is determined by the manner of their connection. There are entire college level course on how to use these, so I won’t be getting into too much detail here, but the comparator circuit shown in the diagram is one of the easiest to understand in my opinion :)
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I learned about OP-AMPs on a old book.
I was surprised not to remember about any specific subject focused on OP-AMP at school. I just assumed that is because OP-AMPs are used in analog computers while we are already at the age of their digital counterpart? LOL.
That, I would assume, is exactly right. Although, outside of the computer they do have their many applications, typically they (or their digital counterparts) are embedded in commercial off the shelf solutions, so it’s less common now to see people designing components with them directly.
So they’re fingerprint is everywhere, but there is little common evidence of them to be found these days. Fascinating little dudes these are!
Agree. Plus, it's an advantage to know how to design at least a basic circuit with it.
Btw, I see your posting a lot of your notes. It is tempting me to do the same. 🙂
I’d love to see them! It seems like a good use of the blockchain to me, whether for the purpose of sharing educational materials, backing up notes for future reference, or both!
I planning to modify mine to be both (a backup and educational material). I lost my most of my notes but I can remember some of them. Anyways, I'm gonna download it from memory, update it and post it. I will try to make it entertaining/educational for the general public. :)
Sounds awesome! I’ll keep my eyes open for it :)