Op-Amps Explained: The Tiny Chip That Does Math with Electricity

Prof MAD Prof MAD

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What if I told you there’s a tiny chip that can do math with electricity?
Meet the operational amplifier—or op-amp—one of the most powerful and versatile building blocks in electronics.

Op-Amp Comparator : https://youtu.be/d6670gSIbiM?si=EYsnUPw324U9OtpF

In this beginner-friendly guide, we’ll break down:
What an op-amp is and why it’s called an “operational” amplifier
How op-amps can add, subtract, multiply, divide, and even differentiate & integrate voltages
The difference between open-loop and closed-loop operation
The golden rules of op-amps that make circuit analysis simple
Real-world examples of op-amps in audio, sensors, and analog computing

You’ll see why engineers call op-amps the Swiss Army knife of electronics—and how you can start using them in your own projects without writing a single line of code.

📌 Perfect for: Electronics beginners, DIY makers, engineering students, and curious minds.
📌 Next video: We’ll build real op-amp circuits like comparators, buffers, and amplifiers—so subscribe and hit the bell to learn more.

Timestamps:
0:30 – What is an op-amp?
0:45 – Amplifiers vs operational amplifiers
1:54 – Doing math with voltage
5:35 – Op-Amp characteristics
6:02 – Op-Amp Gain
6:43 – Open-loop vs closed-loop operation
8:08 – The golden rules of op-amps