Analog Intuition

Interactive engineering education.

Mini tutorials for focused topics. Full courses for deep tracks. Tools for quick answers.

Courses → Tools →
Built by Joseph Spencer, Field Applications Engineer at Analog Devices. These tools grew out of real conversations with engineers who wanted faster, more visual ways to develop intuition for analog and power electronics.

Mini Tutorials

Short ordered tracks — one topic, a few parts, tools along the way. Finish in an afternoon.

Browse mini tutorials →

Courses

Longer MIT OCW–style paths — multi-session depth when you need the full map.

Browse courses →

Tools

Standalone calculators and visualizers — grab one when you need a quick answer.

Browse tools →

Articles

LTSpice techniques, app notes, and write-ups — read, then open a live demo.

Read articles →
Summer study

AP Latin Vocabulary

Flashcards, multiple choice, timed mode, and review mode — ~990 words, mobile-friendly.

Start studying →
Music practice

Intune

Real-time intonation feedback for viola, violin, and cello — scrolling staff, cents ribbon, pause-and-review.

Download for Windows →
Featured mini tutorial

Eight live parts: H(s), pole-zero plots, feedback, phase margin, compensators, root locus.

Open mini tutorial →

Featured Tools

Accuracy Translator
Convert between accuracy metrics (ppm, %, LSB, etc.) using an interactive nomograph.
Analog • Precision
Type II Compensator
Live Bode plots and transfer function as you tune the classic Type II network.
Control Systems • Compensation
PLL Loop Filter Visualizer
Interactive open-loop gain, Bode plots, and passive loop filter design for charge-pump PLLs. Tune poles and zeros live.
Control Systems
Output Noise Band Explorer
LF noise vs switching ripple — overlay NSD curves, drag the integration band, compare switchers, LDOs, and op amps.
Power • Noise
Noise Analyzer
Convert noise density curves into RMS and peak-to-peak values with live integration.
Analog • Noise
Root Locus Tool
Interactive root locus, Bode, step, and impulse plots for compensated current-mode systems.
Control Systems
Synchronous Buck Timing & Ripple
Visualize duty cycle, switch node, inductor current, and input RMS with dead time modeling.
Power Electronics • Waveforms
Multiphase Buck RMS Current
See how phase interleaving dramatically reduces input capacitor RMS current.
Power Electronics • Power

LTSpice articles and app notes live under Articles.