[cushychicken]

Widlar, Bob Pease, and Jim Williams are all worth reading about if you're not familiar. Bigwig semiconductor designers from a bygone age.

There are some great application notes by Jim Williams from his time at Linear Tech if analog design application notes are your thing.

[pjc50]

My favourite Bob Pease article, about being extremely methodical in the measurement of small currents: https://www.electronicdesign.com/test-amp-measurement/whats-...

Someone has a "best of" Jim Williams: http://readingjimwilliams.blogspot.com/p/best-app-notes.html

Some while ago I wrote a blog post about how fantastic app note 47 was; very much "nothing like this will be built again". For its unassuming title it is a more instructive read than quite a lot of books on opamps.

[cushychicken]

AN-47 is a master work.

[madengr]

This book is good:https://www.amazon.com/Analog-Circuit-Design-Personalities-E...