Is this good for educators?

Yes — this version of "Sampling & Nyquist for an op-amp filter" is framed for educators teaching it to a class. Drop a live demo into a lecture or assign it as a shareable link — no lab installs.

Do I need to install anything?

No. It runs in any modern browser, free, with no account required.

For Educators · Sampling & Nyquist

Sampling & Nyquist for an op-amp filter

Built for educators teaching it to a class. Drop a live demo into a lecture or assign it as a shareable link — no lab installs. Simulate an op-amp filter live below — adjust the inputs and watch it respond, right in your browser.

Sampling & NyquistLive

when digital gets it wrong

Controls

Presets

Signal frequency (Hz)

Sample rate fs (Hz)

The Nyquist–Shannon theorem says you must sample faster than twice the highest frequency. Sample too slowly and a high frequency masquerades as a low one — aliasing — which is why anti-alias filters guard every ADC. Educational tool.

▶ Run in Python

Data Inspector

Nyquist rate10 Hz

Samplingtoo slow ⚠

Apparent frequency3.0 Hz

Governing equation

f_{s} > 2 f_{m a x} : 8 Hz < 10 Hz \Rightarrow f_{alias} = 3.0 Hz

Reading this result: Undersampled: fs=8 Hz is below the 10 Hz Nyquist rate, so the 5 Hz tone masquerades as a false 3.0 Hz signal.

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Frequently asked questions

Is this good for educators?: Yes — this version of "Sampling & Nyquist for an op-amp filter" is framed for educators teaching it to a class. Drop a live demo into a lecture or assign it as a shareable link — no lab installs.
Do I need to install anything?: No. It runs in any modern browser, free, with no account required.