Best Function Generators
Compare function generators by performance, capacity, accuracy, durability, compatibility, safety, and value to find the right option for your workshop.
Quick verdict
Siglent SDG1032X is the first model to compare for best hobby/prosumer all-rounder. Rigol DG822 Pro is the stronger alternative when best compact value matters more. The other picks deliberately cover different budgets or workflows instead of repeating nearly identical products.
Top picks
Siglent SDG1032X
Dual-channel 30mhz arbitrary waveform generator.
Check Current PriceFeelTech FY6900
Dual-channel dds function generator.
Check Current PriceQuick comparison
| Model | Key configuration | Best for | Main tradeoff | Check |
|---|---|---|---|---|
| Siglent SDG1032X | Dual-channel 30mhz arbitrary waveform generator | hobby/prosumer all-rounder | Higher cost or more capability than some benches need | Check |
| Rigol DG822 Pro | Dual-channel arbitrary/function generator | compact value | Less capacity than larger options | Check |
| FeelTech FY6900 | Dual-channel dds function generator | budget high-frequency option | Fewer premium features | Check |
| Digilent Analog Discovery 3 | Usb instrument with waveform generation and mixed-signal tools | multifunction alternative | Higher cost or more capability than some benches need | Check |
1. Siglent SDG1032X — Best hobby/prosumer all-rounder
Key configuration: Dual-channel 30mhz arbitrary waveform generator.
Siglent SDG1032X earns this slot because its configuration addresses a distinct part of the best function generators decision. Compare the measurement range, accuracy or workflow feature that controls your actual job rather than buying by brand name alone.
It is the strongest fit when hobby/prosumer all-rounder is the priority and the published specifications match your required range.
Higher cost or more capability than some benches need. Another option can also be smarter when its accessories, service path or physical format fit your bench better.
2. Rigol DG822 Pro — Best compact value
Key configuration: Dual-channel arbitrary/function generator.
Rigol DG822 Pro earns this slot because its configuration addresses a distinct part of the best function generators decision. Compare the measurement range, accuracy or workflow feature that controls your actual job rather than buying by brand name alone.
It is the strongest fit when compact value is the priority and the published specifications match your required range.
Less capacity than larger options. Another option can also be smarter when its accessories, service path or physical format fit your bench better.
3. FeelTech FY6900 — Best budget high-frequency option
Key configuration: Dual-channel dds function generator.
FeelTech FY6900 earns this slot because its configuration addresses a distinct part of the best function generators decision. Compare the measurement range, accuracy or workflow feature that controls your actual job rather than buying by brand name alone.
It is the strongest fit when budget high-frequency option is the priority and the published specifications match your required range.
Fewer premium features. Another option can also be smarter when its accessories, service path or physical format fit your bench better.
4. Digilent Analog Discovery 3 — Best multifunction alternative
Key configuration: Usb instrument with waveform generation and mixed-signal tools.
Digilent Analog Discovery 3 earns this slot because its configuration addresses a distinct part of the best function generators decision. Compare the measurement range, accuracy or workflow feature that controls your actual job rather than buying by brand name alone.
It is the strongest fit when multifunction alternative is the priority and the published specifications match your required range.
Higher cost or more capability than some benches need. Another option can also be smarter when its accessories, service path or physical format fit your bench better.
How to choose without overbuying
Start with the controlling specification
Bandwidth, output range, measurement accuracy, extraction airflow, working distance or electrical rating should follow the real task.
Check the complete bench workflow
Accessories, probes, tips, filters, stands, software and replacement parts can matter more than one headline number.
Leave a sensible margin
Enough headroom prevents immediate replacement, but extreme unused capacity is not automatically better value.
Respect safety and ratings
For mains, ESD, fumes, fire detection and electrical distribution, use equipment with ratings appropriate to the application and follow qualified installation requirements.
Frequently asked questions
What should I compare first?
Start with the repeated job and the specification that actually limits that job.
Is Siglent SDG1032X automatically the best choice?
No. Siglent SDG1032X leads for one defined use case; another pick can fit a different budget, workflow or requirement better.
Should I buy more capability than I need?
Only when the extra capacity solves a realistic future job. Otherwise it usually adds cost, size or complexity.
What costs are easy to forget?
Include probes, leads, filters, tips, accessories, calibration needs, replacement parts and bench space where relevant.
Are these fabricated hands-on tests?
No. These are research-based buying guides unless a page explicitly states that a product was physically tested.
How should current price affect the ranking?
Use price after narrowing to products that meet the technical requirement; a bargain that cannot do the job is not value.
What should I verify before ordering?
Verify the exact current model, specifications, included accessories, safety certifications where relevant, warranty and support.
Compare the exact current options
Narrow the technical requirement first, then use current price and included accessories to break the tie.
Compare Current Prices