Instead of the conventional approach of backing up a DAC with an amplifier to boost output, this design idea charts a less traveled by path to power...
Articles and news - 10
PWM power DAC incorporates an LM317
High-side current amplifier forms 28 V circuit breaker
Using the MAX4373 high-side current-sense amplifier, a circuit can be designed with a voltage range to 28 V...
Capture 16-bit readings of 8 thermistors in less than 1 second for $2
Figure is a cheap and cheerful voltage inverter I offered awhile back in “A simple, accurate, and efficient charge pump voltage inverter for $1”...
An ultra low distortion oscillator with THD below -140 dB
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 a Dpot
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 announces the development of the world’s smallest class 006003-inch size (0.16 mm × 0.08 mm) chip inductor...
2 GHz active probe. Part 2
Mystery solved? Not quite. I made a test coupon of the output transmission line and measured it...
2 GHz active probe. Part 1 - Searching for solutions
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...
The weed-eater circuit
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 with marker
This circuit is a simple sweep generator. The sawtooth is generated by the PNP transistor and the 555...
