Differential Amplifier Simulation

This interactive simulation allows you to design your own differential amplifier, and feed it with signals that you design, to see how it works in real time.

The simulation accurately shows the effects of gain, common-mode rejection ratio, noise interference, and other important factors in amplifier design and use.

Understand first hand what it means for an amplifier to be a precision EEG type amplifier, how the specifications matter, and how signals are affected when put through the amplifier.

You will be able to have a direct, clear understanding of concepts that have been hard to describe using words, and for those who are not math-oriented.

Learn by doing, adjust the amplifier parameters, change inputs, and watch the output waves and FFT spectra in real time.

This demonstration is directly relevant to the knowledge needed to pass the QEEG and neurofeedback board examinations, for the technical sections!

Differential Amplifier Simulation

🔬 Differential Amplifier Simulation

📊 Input Signals

Inverting Input (V-)

Non-inverting Input (V+)

Output Power Spectrum

Full-Scale: 0.000 V²
V- (Inverting)
V+ (Non-inverting)
Output
Vout = A × (V+ - V-)

📈 Output Signal

⚙️ Amplifier Settings

🔊 Inverting Input (V-)

🔊 Non-inverting Input (V+)

🎛️ Common Mode Signals

📊 Real-time Analysis

Differential Signal: 0.0 mV
Common Mode Signal: 0.0 mV
Output Level: 0.0 V
CMRR Effectiveness: