Best Oscilloscopes With Function Generators for Precise Signal Testing
Finding the best oscilloscope and function generator combo can significantly enhance your electronics testing and signal analysis. We’ve compiled a summary of top Amazon selections that combine versatile oscilloscopes with integrated or standalone function generators, suitable for hobbyists, professionals, and engineers alike.
| Product | Brand | Bandwidth | Sampling Rate | Function Generator |
|---|---|---|---|---|
| FNIRSI 2C53T Handheld Oscilloscope | FNIRSI | 50 MHz | 250 MSa/s | DDS Generator |
| FNIRSI DPOS350P 4-in-1 Tablet Oscilloscope | FNIRSI | 350 MHz | 1 GSa/s | DDS Generator |
| CANADUINO® 1014D Digital Oscilloscope & Function Generator | CANADUINO | Spec Not Listed | 1 GSa/s | 12-Function DDS Generator |
| Rigol DS1104Z-S Plus Digital Oscilloscope | Rigol | 100 MHz | 1 GSa/s | 25 MHz Built-in Generator |
| FNIRSI DSO-510 Handheld Oscilloscope & Signal Generator | FNIRSI | 10 MHz | 48 MSa/s | DDS Signal Generator |
FNIRSI 2C53T Handheld Oscilloscope With 50MHz Bandwidth
The FNIRSI 2C53T is an upgraded handheld oscilloscope combining a 50 MHz bandwidth with a 250 MSa/s sampling rate. It features a dual-channel oscilloscope, enhanced measurement range, and includes advanced math operations like cursor measurement, persistence mode, and XY mode. Its 4.5-digit multimeter supports AC/DC voltages up to 999.9V and currents up to 9.999A, making it a multifunctional device suitable for professionals and hobbyists.
Waveform images can be stored and exported, supporting efficient diagnostics. Additionally, it offers 1 Kpts record depth, vertical sensitivity from 10mV/div to 10V/div, and a maximum measurable voltage of 400 V, positioning it well for broad electronic testing.
FNIRSI DPOS350P 4-in-1 Tablet Oscilloscope With 350MHz Bandwidth
The FNIRSI DPOS350P is a high-end tablet-style oscilloscope integrating a 350 MHz bandwidth, 1 GSa/s sampling rate, and a 7-inch touchscreen with digital phosphor display. This 4-in-1 device includes a dual-channel oscilloscope, spectrum analyzer, frequency response analyzer, and DDS generator. The spectrum analyzer covers 200 KHz to 350 MHz, offering FFT analysis with real-time 2D/3D waterfall views, ideal for EMI and signal integrity testing.
The frequency response analyzer supports gain, phase, and frequency measurements perfect for Bode plots and loop stability tests. With advanced features such as 50,000 waveforms per second refresh rate, zoom, and cursor functions, it suits detailed analysis tasks across electronics fields.
CANADUINO 1014D Digital Oscilloscope and Function Generator Combo
The CANADUINO 1014D is a lightweight digital oscilloscope and function generator combo designed for beginners and advanced users. It features a 1 GSa/s dual-channel oscilloscope with storage for approximately 1000 screenshots. The function generator offers 12 functions via DDS technology.
It includes 5V power supply, USB cable, and probes with high voltage protection up to 400V on the inputs. This device is designed for convenience and safe handling across a variety of scenarios but requires careful reading of its manual for optimal use at higher voltages or frequencies.
Rigol DS1104Z-S Plus 4-Channel Digital Oscilloscope With 25MHz Generator
The Rigol DS1104Z-S Plus is a well-known digital oscilloscope offering 100 MHz bandwidth with 4 channels and a 1 GSa/s sampling rate. It includes a built-in 25 MHz function/arbitrary waveform generator with 2 signal channels, useful for versatile testing and signal generation.
It also features a 24Mpts memory depth and supports a digital logic connector upgrade for mixed signal oscilloscope (MSO) functions. Bundled software and convenient interface make it suitable for complex diagnostics and testing environments.
FNIRSI DSO-510 Portable Oscilloscope and Signal Generator
The FNIRSI DSO-510 is a compact, handheld oscilloscope with a 10 MHz bandwidth and 48 MS/s sampling rate. It supports voltages up to 400 V and provides a 50 ns to 20-second time base range. Its infinite afterglow feature helps in capturing signal details accurately. The oscilloscope supports waveform scaling, suspension, and movement, along with image saving and exporting.
Its integrated DDS signal generator outputs 13 types of waveforms with up to 50 KHz frequency, facilitating diverse signal simulation needs, especially suited for automotive diagnostics and electronics troubleshooting.
Buying Guide: Key Factors When Choosing an Oscilloscope and Function Generator
Selecting the ideal oscilloscope and function generator depends on several important factors related to your specific application needs:
- Bandwidth: Choose bandwidth at least five times higher than the highest frequency signal you plan to measure to accurately capture waveforms without distortion.
- Sampling Rate: Higher sampling rates (in GSa/s or MSa/s) allow more precise signal reconstruction. Aim for at least twice the signal frequency (Nyquist rate) but ideally much higher.
- Channels: Multiple channels (2 or more) enable multi-signal comparison, which is helpful in complex circuit analysis.
- Function Generator Capabilities: Check the frequency range and waveform types supported (sine, square, triangle, pulse) to ensure it fits your testing requirements.
- Display and Interface: Consider screen size and resolution, color display options, and user-friendly controls especially for handheld or portable models.
- Memory Depth: Bigger memory depth allows capturing longer signal periods, useful for detailed analysis.
- Additional Features: Math operations, cursors, automatic measurements, spectrum analyzer mode, Bode plot functions, and connectivity options (USB, PC software) enhance usability.
- Portability and Power: Handheld or tablet-style scopes offer convenience in fieldwork, but may trade off some high-end specs compared to benchtop models.
Evaluate these aspects carefully against your budget and intended use, whether for professional lab work, automotive diagnostics, home projects, or educational purposes.