Technical References

Starting with ...Linear Circuit Design Handbook, 2008

Also published as Basic Linear Design, Analog Devices, 2007

Link: https://www.analog.com/en/resources/...-handbook.html

Contents
Introduction (pdf)
Chapter 1: The Op Amp (pdf)
Chapter 2: Other Linear Circuits (pdf)
Chapter 3: Sensors (pdf)
Chapter 4: RF/IF Circuits (pdf)
Chapter 5: Fundamentals of Sampled Data Systems (pdf)
Chapter 6: Converters (pdf)
Chapter 7: Data Converter Support Circuitry (pdf)
Chapter 8: Analog Filters (pdf)
Chapter 9: Power Management (pdf)
Chapter 10: Passive Components (pdf)
Chapter 11: Overvoltage Effects on Analog Integrated Circuits (pdf)
Chapter 12: Printed Circuit Board (PCB) Design Issues (pdf)
Chapter 13: Design Development Tools (pdf)
Index (pdf)

Texas Instruments Technical References

Example:
Active Low-Pass Filter Design, SLOA049D

Another site that has lots of good information and easy to learn theory of components:

https://www.electronics-notes.com/