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Understand and Mitigate Temp Effects in InGaAs Avalanche Photodiodes

Understand and Mitigate Temp Effects in InGaAs Avalanche Photodiodes

InGaAs Avalanche Photodiodes (APDs) use avalanche multiplication to amplify weak optical signals. Learn how adding antimony (Sb) into the APD structure enhances temperature stability and reduces noise.


Historical Engineers: John Logie Baird, Inventor of the First Color TV

Historical Engineers: John Logie Baird, Inventor of the First Color TV

While the television traces its origins back to several inventors, John Logie Baird was the first to demonstrate a live working television system and the first color television system.


News Apr 07, 2025 by Luke James
MIT, UCLA, and Harvard Discover New Ways to Harvest the Power of Light

MIT, UCLA, and Harvard Discover New Ways to Harvest the Power of Light

New photonic devices are testing the bounds of optical technology, from creating direct quantum links to achieving one-way light control.


News Apr 04, 2025 by Luke James
Broadcom Unveils 200G Per Lane DSP PHYs to Bolster AI Infrastructure

Broadcom Unveils 200G Per Lane DSP PHYs to Bolster AI Infrastructure

While one of the new DSP PHYs reportedly offers the industry’s lowest power consumption for 800G, the other is the first 200G/lane DSP with integrated VCSEL drivers.


News Mar 27, 2025 by Jake Hertz
Adding Vision to Supervision: Enhancing Workplace Efficiency

Adding Vision to Supervision: Enhancing Workplace Efficiency

Placing cameras in a workplace can be tricky because it requires balancing workplace efficiency with employee security and privacy. Learn how to leverage sensing technology properly to maximize production.


Historical Engineers: Isamu Akasaki, Inventor of GaN-Based Blue LEDs

Historical Engineers: Isamu Akasaki, Inventor of GaN-Based Blue LEDs

Nobel prize winner Isamu Akasaki invented efficient blue light-emitting diodes, enabling bright, energy-efficient white light sources.


News Feb 21, 2025 by Luke James
Research Shorts: 5 Studies Make Headway in Lasers, Antennas, and Beyond

Research Shorts: 5 Studies Make Headway in Lasers, Antennas, and Beyond

From tunable metamaterials inspired by chameleons to radiation-resistant organic solar cells, these discoveries address critical challenges in fields like defense, space exploration, communication, and manufacturing.


News Feb 03, 2025 by Luke James
In Memoriam: Donald Bitzer, the Father of PLATO and Plasma Displays

In Memoriam: Donald Bitzer, the Father of PLATO and Plasma Displays

Donald Bitzer, a monumental figure in plasma display technology and computer-assisted education, passed away last month at the age of 90.


News Jan 28, 2025 by Luke James
IBM Introduces Co-Packaged Optics, an Optical Link Packaging Scheme

IBM Introduces Co-Packaged Optics, an Optical Link Packaging Scheme

IBM believes its new research may increase the efficiency and density of generative AI computing.


News Jan 14, 2025 by Jake Hertz
ams OSRAM SYNIOS® S 2222 LEDs | New Product Brief

ams OSRAM SYNIOS® S 2222 LEDs | New Product Brief

ams OSRAM SYNIOS® S 2222 LEDs feature a compact 2.2mm² design with an enhanced color range for customizable lighting solutions. Watch and learn all about their features, specs, applications, and more!


How Times Square’s New Year’s Eve Ball Got Its Sparkle

How Times Square’s New Year’s Eve Ball Got Its Sparkle

The Times Square Ball has come far from its first iron-and-wood model. Here's how the New Year's Eve icon has evolved over the past century.


News Dec 31, 2024 by Luke James
Casting a Light on Dennis Gabor, Inventor of Holography

Casting a Light on Dennis Gabor, Inventor of Holography

In a remark that aptly foreshadowed his career, the Hungarian-British electrical engineer and physicist famously said, "The future cannot be predicted, but futures can be invented."


News Dec 27, 2024 by Luke James
How Christmas Became Electrified: An Engineer’s Holiday Tale

How Christmas Became Electrified: An Engineer’s Holiday Tale

While the twinkling lights adorning Christmas trees and homes are a familiar sight at this time of year, their earliest iteration looked quite different than our modern LEDs.


News Dec 24, 2024 by Luke James
Everything Goes Up! Top Trends of 2024

Everything Goes Up! Top Trends of 2024

Three hot technologies are leading the way in continuing the Moore’s Law performance increases that can no longer be achieved by transistor scaling alone.


News Dec 23, 2024 by Dale Wilson
Our 2024 Favorites: Hand-Picked Highlights from the All About Circuits Team

Our 2024 Favorites: Hand-Picked Highlights from the All About Circuits Team

We publish hundreds of articles every year—too many even for our team to read them all. So, we decided to share our favorite 2024 news, technical articles, projects, and podcasts with each other and all of you. Enjoy!


News Dec 20, 2024 by Dale Wilson
Tech Teardown | Single-color vs Multi-color with Remote | Mouser Electronics

Tech Teardown | Single-color vs Multi-color with Remote | Mouser Electronics

In this series, we compare two similar products by opening them up to examine the electronic components and manufacturing methods.


The BBC Micro:bit Adjustable Brightness Alarm: A Radio Shack Remix

The BBC Micro:bit Adjustable Brightness Alarm: A Radio Shack Remix

In this project article, we’ll create a programmable device that alerts users to changes in ambient light levels. Along the way, we’ll learn about astable multivibrators and the Darlington pair.


Projects Nov 20, 2024 by Don Wilcher
Using QSPICE to Understand and Tune an LED Blinker Circuit

Using QSPICE to Understand and Tune an LED Blinker Circuit

In this article, we examine the oscillation behavior of an LED blinker circuit in QSPICE and learn how to control its ON-time and pulse repetition frequency.


UCLA Announces New One-Way Optical Material for Imaging Systems

UCLA Announces New One-Way Optical Material for Imaging Systems

The team turned to deep learning to help them develop a new form of unidirectional imaging system that operates with partially coherent light.


News Nov 08, 2024 by Duane Benson
Transferring SPICE Models From LTspice to QSPICE

Transferring SPICE Models From LTspice to QSPICE

In this article, we'll walk through the process of importing SPICE models into QSPICE and demonstrate the basics of using the QSPICE waveform viewer, including measurement markers.