National Semiconductors Application note collection. Circuits and
design notes of many analog and mixed signal chips. These designs just
work and building them will help you learn the Science of Analog Design.
National Semiconductor Corporation (now part of Texas Instruments or
TI). TI, Fairchild, National and others were born with the chips. The
birth of Integrated Circuits starts with them. Even the people who made
Intel and many others have their early roots in these mother firms.