Tutorials / Operational Amplifiers
A Designer's Guide to Instrumentation Amplifiers 
Instrumentation amplifiers (in-amps) are sometimes misunderstood. Not all amplifiers used in instrumentation applications are instrumentation amplifiers, and by no means are all in-amps used only in instrumentation applications...
Opamps for Everyone
Many attempts had been made to make a stable amplifier, but temperature changes and power supply voltage extremes experienced on phone lines caused uncontrollable gain drift. Passive components had much better drift characteristics than...
History and Tutorial of the uA741
What exactly is an OPerational AMPlifier? Let's define what that component is and look at the parameters of this amazing device. An operational amplifier IC is a solid-state integrated circuit that uses...
Handbook of Operational Amplifier Applications
These numbers in the circles referred to pin numbers of old op amps, which were potted modules instead of integrated circuits. Many references to these numbers were made in the text, and these have been changed, of course...
Introduction to Operational Amplifiers
Operational amplifiers are undoubtedly the easiest and best way of performing a wide range of linear functions from simple amplification to complex analog computation. The cost of monolithic amplifiers is now less than $2.00, in large quantities, which makes it...
Applications of OpAmps
The general utility of the operational amplifier is derived from the fact that it is intended for use in a feedback loop whose feedback properties determine the feed-forward characteristics of the amplifier and loop combination....