The Disappearing Capacitor

As part of a phosphorescence detector, [lcamtuf] has been working with photodiodes. The components, like all diodes, have some capacitance at the junction, and this can limit performance. That&#821…

Analog Engineer’s Pocket Reference Needs A Big Pocket

We always admire when companies produce useful tools or documentation that aren’t specific to their products. For example, consider LTSpice. Sure, it has the company’s models baked in. …

Op-Amp Contest: Virtual Ball-in-a-Box Responds To Your Motions

With the incredible variety of projects submitted to our Op-Amp Contest, you’d almost forget that operational amplifiers were originally invented to perform mathematical operations, specifica…

Op Amp Contest: Generate Spirograph Shapes Using Only Op Amps And Math

If you’re a child of the ’80s or ’90s, chances are you’ve spent hours tracing out intricate patterns using the pens and gears of a Spirograph kit. Simple as those parts may …

Hackaday Prize 2023: Explore The Basics Of Neuroscience With This Electronic Neuron

Brains are the most complex systems in the universe, but their basic building blocks are surprisingly simple — the complexity arises from billions of neurons, axons and synapses working toget…

Ask Hackaday: Split Rail Op Amp Power Supply

Water cooler talk at the office usually centers around movies, sports, or life events. Not at Hackaday. We have the oddest conversations and, this week, we are asking for your help. It is no secret…

Analog Anoraks: The Op Amp Contest Starts Now!

We thought it was time to give the analog side of Hackaday their chance to shine, and what’s the quintessential analog IC? The op amp! Whether you’re doing tricky signal conditioning, analog comput…

From Nanoamps To Gigahertz: The World’s Most Extreme Op Amps

The operational amplifier, or op amp, is one of the most basic building blocks used in analog circuits. Ever since single-chip op amps were introduced in the 1960s, thousands of different types hav…