An ultra low distortion oscillator THD
An ultra low distortion oscillator with THD below -140 dB
Jan 23, 2025 Circuits

ADC circuits that resolve signal into 20 or more bits need a low-noise signal source for measuring parameters such as harmonic distortion or effective number of bits...

PWMpot approximates Dpot
PWMpot approximates a Dpot
Jan 22, 2025 Articles

Digital potentiometers are a diverse and useful category of digital/analog components with up to a 10-bit resolution...

Murata introduces ultra-small chip inductor
Murata introduces ultra-small chip inductor
Jan 22, 2025 News

Murata announces the development of the world’s smallest class 006003-inch size (0.16 mm × 0.08 mm) chip inductor...

GHz active probe. Part
2 GHz active probe. Part 2
Jan 21, 2025 Circuits

Mystery solved? Not quite. I made a test coupon of the output transmission line and measured it...

GHz active probe. Part Searching solutions
2 GHz active probe. Part 1 - Searching for solutions
Jan 20, 2025 Circuits

Students, hobbyists, and professionals today enjoy unprecedented access to powerful and affordable test equipment for understanding and building electronic projects. But as enthusiast projects have become more advanced and ambitious, it is still possible to hit the limits of entry-level equipment...

weed-eater circuit
The weed-eater circuit
Jan 19, 2025 Articles

I would sometimes have to interview someone to fill an engineering position in "my" company. Which company that was, changed from time to time, but I needed a way to see just how competent someone was at circuit analysis, somebody with whom I would soon be working...

Sweep generator marker
Sweep generator with marker
Jan 16, 2025 Circuits

This circuit is a simple sweep generator. The sawtooth is generated by the PNP transistor and the 555...

two transistor sine wave oscillator
A two transistor sine wave oscillator
Jan 15, 2025 Circuits

Figure shows a variation on a sine wave oscillator, it uses just two transistors and a single variable resistor to set the frequency...

Bringing AI acceleration Arduino
Bringing AI acceleration to Arduino
Jan 15, 2025 News

Arduino is partnering with chip startup Axelera to bring machine learning out of the cloud and into IoT devices based on its Pro hardware...

Current mirror drives multiple LEDs low
Current mirror drives multiple LEDs from a low supply voltage
Jan 14, 2025 Circuits

Driving LEDs at a regulated current from low supply voltages can be difficult because minimal overhead voltage is available for control circuits. A current-mirror architecture is suitable but usually works only with ICs with well-matched transistors...