Best USB Arbitrary Waveform Generator for Lab Testing and Prototyping
When selecting a USB-based arbitrary waveform generator (AWG), buyers generally seek accurate signal output, versatile waveforms, and convenient software control. This guide highlights five top options, detailing who each device is best for, and why they stand out. The selections cover compact portable units and feature-rich dual-channel models suitable for electronics labs, hobbyists, and engineers performing testing, calibration, and prototyping.
| Product | Best For | Key Benefit | Notable Limitation |
|---|---|---|---|
| YERTAI ET3320C | Compact labs and field work | Built-in 5 standard waveforms plus 32 arbitrary waveforms; 100 MHz counter | Moderate bandwidth for some high-speed tests |
| UNI-T UTG932E | Dual-channel testing with modulation | 30 MHz per channel; rich modulation options; 200 MSa/s | Power adapter included but may require region-specific plug |
| UNI-T UTG932E (Second listing) | Budget dual-channel needs | 20+ years of UNI-T familiarity; 200 MSa/s; 24 groups storage | Cosmetic copy; ensure model matches spec |
| Siglent SDG810 | Stable DDS waveforms | 125 MSa/s, 14-bit detail; robust modulation | Single channel |
| ET3360C | 60 MHz dual-channel testing | Dual channels, 60 MHz, 50 user waveforms | Brand is generic; verify compatibility |
YERTAI ET3320C Signal Function Generator
The YERTAI ET3320C combines a 20 MHz DDS arbitrary waveform engine with a dual-channel format and a built-in frequency counter. It uses a 2.4-inch LCD for straightforward operation and supports storing up to 50 customized waveforms. Best for compact benches and portable labs, this unit is a practical choice for students and technicians who need reliable signal generation without bulk. A potential limitation is its 20 MHz bandwidth, which may restrict high-frequency tests compared with higher-end gear.
UNI-T UTG932E Function Generator
UNI-T UTG932E offers dual-channel outputs with 30 MHz per channel and 200 MSa/s sampling. It provides a broad set of waveforms, including sine, square, ramp, pulse, noise, DC, and arbitrary types, plus comprehensive modulation options such as AM, FM, PM, FSK, PSK, PWM, and sweep. It suits dual-channel testing and synchronized experiments, making it a solid choice for instrumentation cabinets. A caution is to verify the included power adapter compatibility for your region.
UNI-T UTG932E (Alternative Listing)
This listing reiterates the UTG932E capabilities, highlighting two independently controllable channels with a 200 MSa/s sampling rate and 24 non-volatile waveform groups. It remains a strong pick for projects needing two synchronized outputs or differential signaling for multi-point tests. Consider confirming exact model features and included accessories if comparing against other vendors.
Siglent SDG810 Signal Generator
Siglent’s SDG810 delivers single-channel output with 125 MSa/s and 14-bit resolution, featuring a robust suite of standard waveforms and 46 built-in arbitrary waveforms. Its complete modulation options—AM, DSB-AM, FM, PM, FSK, ASK, PWM, and sweep—make it well-suited for lab work involving complex signal testing. Best for researchers who prioritize signal fidelity and modulation versatility in a compact form factor. A limitation is the lack of native dual-channel capability on this model.
1Hz-500kHz DDS Functional Generator FG-100
The FG-100 offers a broad 1 Hz to 500 kHz sine performance with additional waveforms such as square, triangle, and sawtooth. It emphasizes affordability and simplicity, suitable for basic calibration tasks or educational settings. Best for beginners or budget projects. Note that extremely high frequency content beyond 500 kHz is not supported.
UNI-T UTG962E Dual-Channel Generator
The UTG962E expands on UTG932E with higher performance: 60 MHz per channel, 200 MSa/s, and 14-bit resolution, plus 24 arbitrary waveform groups. It supports extensive modulation and dual-channel operations, making it a strong choice for multi-channel bench testing and precise signal generation. A potential limitation is increased cost compared with single-channel units.
ET3360C 60MHz Dual-Channel Generator
The ET3360C offers dual channels with up to 60 MHz output, 200 MSa/s sampling, and a set of standard and arbitrary waveforms. It includes wide modulation options such as AM, FM, PM, ASK, FSK, PSK, along with sweep and burst modes. Best for engineers needing higher frequency capability in a dual-channel package. Limitation: specification claim relies on product family branding; ensure exact model alignment when purchasing.
DGE2070 Dual-Channel Generator
The DGE2070 provides dual-channel arbitrary waveform generation with 70 MHz capacity and 300 MSa/s sampling. It integrates SCPI and PC control for automation, suitable for more advanced test setups and programmatic control. It is best for labs needing programmable control and precise waveform synthesis across two channels. A caution is to verify software compatibility with your test bench and controller setup.
Buying Guide
- Bandwidth and sampling rate: Choose the required frequency range (e.g., 20 MHz to 60 MHz) and sampling (e.g., 200 MSa/s) to match test signals and resolution needs.
- Number of channels: Single-channel units are compact and affordable; dual-channel models enable synchronization, differential signaling, and multi-point testing.
- Waveform versatility: Look for standard waveforms (sine, square, triangle, ramp, noise, DC) plus programmable arbitrary waveforms and built-in storage capacity for convenient reuse.
- Modulation features: If you test communication or control systems, ensure AM, FM, PM, FSK, PSK, PWM, and sweeping are supported.
- Storage and memory: Non-volatile waveform storage and ease of loading user-defined waveforms help in rapid test cycles and automation.
- Control interface: USB connectivity with software support simplifies integration into test rigs and automation workflows. Consider SCPI support for advanced control.
- Physical form and portability: For field work or tight benchtops, prioritize compact, lightweight models with clear displays.
- Power and compatibility: Check power adapter requirements and region-specific plug types. Ensure the instrument’s I/O levels match your test equipment.
FAQ
- What is an AWG and why choose USB control? An AWG generates precise, programmable waveforms, and USB control allows easy connection to a PC or test rig for automation and data capture.
- What waveform features matter most for calibration? A mix of standard waveforms, high-resolution arbitrary waveforms, and stable frequency output are key for calibration tasks.
- How many channels do I need? For simple calibration or single-point tests, one channel suffices. For synchronized testing or differential signaling, dual-channel units are preferable.
- Is higher bandwidth always better? Higher bandwidth enables faster signal content but costs more. Choose bandwidth that matches your target signal frequencies.
- Can I store my own waveforms? Many models offer non-volatile memory for custom waveforms, enabling quick recall during testing.
- What should I verify before buying? Confirm channel count, bandwidth, sampling rate, waveform storage options, modulation capabilities, and compatibility with your software environment.