Op Amp Theory and Design - Phil's Lab #53

Описание

Operational amplifier (op amp) theory and design of a very simple op amp using discrete components (transistors, resistors, capacitors). Including content on op amp stages (difference amplifier, gain stage, output stage), bandwidth, gain-bandwidth-product (GBP), op amp performance criteria, negative feedback, and more. Final demonstrations of real-world implementation on a PCB using the Digilent Analog Discovery Pro.

[SUPPORT]
Free trial of Altium Designer: https://www.altium.com/yt/philslab

PCBA from $0 (Free Setup, Free Stencil): https://jlcpcb.com/RHS

Patreon: https://www.patreon.com/phils94

[LINKS]
GitHub: https://github.com/pms67

Digilent ADP3450: https://digilent.com/shop/analog-discovery-pro-3000-series-portable-high-resolution-mixed-signal-oscilloscopes/

[TIMESTAMPS]
00:00 Introduction
00:17 Content

00:53 Altium Designer Free Trial
01:17 JLCPCB

01:39 Op-Amp Basics
02:57 Open Loop View
03:37 Closed Loop View
05:00 Why is Negative Feedback Useful?
07:33 Negatives of Using Feedback
08:07 Implementation of Negative Feedback

08:58 Op Amp Sections
10:10 Design Goals
10:58 Difference Amplifier
14:29 Gain Stage
16:53 Simulation and Gain-Bandwidth-Product (GBP)

18:28 Test Circuit
19:48 PCB and Schematic Overview (KiCad)

22:06 WaveForms Overview
22:49 Test - Gain and Bias
24:18 Test - Gain-Bandwidth-Product
26:04 Test - Low- and High-Pass Filter
27:23 Test - Dominant Pole Compensation

ID: QIBvbJtYjWuHiTG0uCoK