Function Generator with RC Op-Amp Circuits

Overview

Built an RC and LM741 op-amp circuit chain to generate square, triangle, and sine waveforms.

Approach

• Assembled the circuits on a breadboard using resistors, capacitors, two LM741 op-amps, and a Rigol oscilloscope.
• Converted a sawtooth signal to square, integrated it into triangle, then used a low-pass filter to produce sine.

Outcome

Generated 800 Hz waveforms and a 1.10 Vpp sine wave; measured capacitor impedance at approximately −j20 kΩ.