Creating a bode plot from a simulation (or transfer function) is easy. But what if you want to create a bode plot for a REAL op-amp circuit or filter? One way is to measure a few parameters with an oscilloscope and function generator and then put those into a spreadsheet. Another is to use network analysis or frequency response analysis to do it automatically!
Watch the Video:
Supplemental Content:
- Workbench Wednesdays 42: Compare Ideal vs. Real Filter with an LCR Meter
- Workbench Wednesday 17: Instrument Basics: Function Generator
- Workbench Wednesdays 54: How Oscilloscope Acquisition Modes Work
- Workbench Wednesday 18: Digilent Analog Discovery Review
- Workbench Wednesdays 49: Instrument Basics: Vector Network Analyzer (VNA) with PicoVNA
- DC to Daylight 13: How Operational Amplifiers Work
- The Learning Circuit 68: How Op Amps Work
- Voltage Feedback Op-Amp Gain and Bandwidth App Note
Bill of Material:
| Product Name | Manufacturer | Quantity | Buy Kit |
|---|---|---|---|
| LM358 - Audio | TI | 1 | Buy Now |
| TL081 - JFET General Purpose, 4 MHz SOIC-8 | ST Microelectronics | 1 | Buy Now |
| Bench Oscilloscope - 200 MHz, 1 GSa/s, 14-bit, AFG, DMM | Multicomp Pro | 1 | Buy Now |
| [Bundle] Development Kit, Analog Discovery 2 Pro Bundle, 30MHz Oscilloscope, 12MHz Waveform Generator | Digilent | 1 | Buy Now |
| MXO4 - 4 Channel Oscilloscope 200 MHz | Rohde & Schwarz | 1 | Buy Now |
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