Analog Engineer's Circuit Cookbooks: Amplifiers
https://www.ti.com/seclit/sl/slyy137a/slyy137a.pdf
Analog Engineer's Circuit Cookbooks: Data converters
https://www.ti.com/seclit/sl/slyy138a/slyy138a.pdf
The Signal e-Book
http://www.ti.com/lit/ml/slyt701/slyt701.pdf