Signals
Increasing ADC resolution by adding dither to DC signals
An EDN Design Idea (DI) presented a discussion of how to increase the resolution of an ADC by adding a non-deterministic, zero-mean, Gaussian noise dither waveform to a signal to be converted; then, oversampling the sums, and low-pass filtering (thereby averaging) the ADC conversions. (As noted, a filter that optimally removes out-of-band high-frequency dither noise is generally…
LLM-as-a-Judge: Where Do Its Signals Break, When Do They Hold, and What Should “Evaluation” Mean?
What exactly is being measured when a judge LLM assigns a 1–5 (or pairwise) score? Most “correctness/faithfulness/completeness” rubrics are project-specific. Without task-grounded definitions, a scalar score can drift from business outcomes (e.g., “useful marketing post” vs. “high completeness”). Surveys of LLM-as-a-judge (LAJ) note that rubric ambiguity and prompt template choices materially shift scores and human…
Mixed signals, on a power budget: Intelligent low-power analog in MCUs
It goes without saying that battery-powered devices are sensitive to power draw, especially during periods of inactivity. One such use case is in sensor nodes or portable sensors—these devices passively monitor a specific condition. When the threshold is exceeded, they trigger an alarm or log the event for further analysis. Since most devices incorporate some…
White House plan signals “open-weight first” era—and enterprises need new guardrails
Want smarter insights in your inbox? Sign up for our weekly newsletters to get only what matters to enterprise AI, data, and security leaders. Subscribe Now U.S. President Donald Trump signed the AI Action Plan, which outlines a path for the U.S. to lead in the AI race. For enterprises already in the throes of…
Frequency-Dependent Switch Model For AC Power Signals With Pspice
A frequency-dependent switch designed for PSpice simulation empowers experts to address challenges in advanced systems, seamlessly integrating into diverse electronic circuits. Switches may be used in any device/circuit in UHF or higher radio bands that need to route signals through multiple paths. Switches in different configurations are used in ATE (automatic test equipment) systems. Solid…