Here is a close look at the common- versus differential-mode voltage and instrumentation amplifier (IA) topologies.

Dallas, Texas–Op amps, those versatile building blocks of the analog world, already come in thousands of varieties. Still, there's always a need for more and better, where “better” means having more ...

Design analysis of the K2-W Vacuum Tube Op Amp’s design and operation reveals the mad science that created a commercial revolution in 1950s and 1960s analog computing. Op amps played a critical role ...