EEVblog 1609 - Composite Amplifier Tutorial + Practical Demo

A lot of texbooks don't teach Composite Amplifiers, but they are one of the most used circuit configurations to solve real world design poblems where you have multiple conflicting specifications.

Opamp Tutorial Playlist: https://www.youtube.com/playlist?list=PLvOlSehNtuHu2FviAaZaiyXwN41G4b1Lf Cascaded Compound Amplifiers: https://www.youtube.com/watch?v=ZvT9hHG17tQ

Forum: https://www.eevblog.com/forum/blog/eevblog-1609-composite-amplifier-tutorial-practical-demo/

00:00 - Composite vs Compound Amplifiers 02:53 - How a Composite Amplifier works 05:09 - Why not just cascade them? 07:23 - This doesn't just apply to opamps 08:24 - An example with gain, and another way to look at it 09:37 - Composite gain vs stage gain 11:19 - What's the catch? + rule of thumb for stability 12:42 - Another example: Composite precision high bandwidth amplifier 14:50 - Breadboard demonstration of Composite vs Compound amplfiers 19:09 - Changing to Composite configuration and Magic Happens 20:07 - More magic as it compensates for the buffer drop too

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