Exploring Op Amps

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.

A book for hobbyists, engineers, Makers, and Arduino devs, "Fundamental Analog Circuits & Semiconductors,” with lab kits, successfully funded on Kickstarter.

In the first of three parts, Andy hypothesizes that the K2-W Analog Computer Op Amp’s design has some unrevealed mad science in its input-stage design.

The LMR1901YG-M offers ultra-low power consumption for battery-powered sensor amplifiers and portables.

This AEC-Q100-qualified dual op amp from STMicroelectronics merges two difficult-to-combine attributes in a MiniSO-8.

New high-accuracy, high-stability op amps from STMicroelectronics, targeting automotive applications, work in temps up to 175°C.

From input offset voltage to slew rate to gain bandwidth product, specifications for operational amplifiers can vary widely amongst different vendors.

Here’s what you didn’t learn in school, such as how to really combine the distortion terms in cascaded amplifiers.

With its minimal current consumption and 150°C operating temp, the TSU111H op amp developed by STMicroelectronics delivers an unusual combination of properties.

Wouldn’t it be great to not repeat the same amplifier application errors many new designers fall into? Read on to head off these common confusions and oversights.

In a signal-conditioning op-amp application there are a number of different approaches to take—what noise and SFDR advantages might one offer over another.

Paul Rako revisits the varactor-input amplifier built by Bob Pease, creating his own updated version and running it through Spice simulations.

Intersil's Michael Steffes details how every semi company tests new analog-to-digital converter products in the lab in order to obtain data-sheet values for SFDR and SNR, then...

Michael Steffes challenges conventional approaches to Sallen Key Filter design. He says today's components and VFAs offer greater flexibility. This opinion piece links to more...