A low-cost, analog function generator designed and built using op-amps and discrete components to produce sine, square, and triangular waveforms with adjustable frequency and amplitude. This project demonstrates practical waveform generation using classical analog design techniques.
This function generator is built around an XR-2206 waveform generator IC and 741 op-amps to create stable and tunable output signals for electronics testing and experimentation.
It supports:
- Sine Wave
- Square Wave
- Triangular Wave
- Low and High Frequency Ranges
- External Amplitude Control for Square Wave
Designed as a hands-on learning platform for understanding:
- Oscillator design
- Integrators and comparators
- Signal shaping
- Op-amp gain control
- Frequency control using RC networks
- Dual frequency range (Hz to kHz scale)
- Adjustable amplitude control
- Stable waveform shaping using analog filters
- External op-amp stage for square wave scaling
- Split power supply operation for symmetric waveforms
- XR-2206 IC – Generates base sine, square, and triangular signals
- RC Timing Network – Controls output frequency
- Op-Amp Stage (741) – Used for square wave amplitude control
- Dual Power Supply (±15V) – Ensures clean and symmetric output
📷 Waveform captures are included in the "results" pdf for verification.
- XR-2206 Function Generator IC
- 741 Op-Amps
- Resistors & Potentiometers (1kΩ – 100kΩ range)
- Capacitors (0.001µF – 2000µF)
- Dual Power Supply (±15V)
- Digital Storage Oscilloscope (DSO)
- Breadboard / PCB Setup