Arbitrary Waveform Generators

Arbitrary waveform generators (AWGs) are used to create custom electrical signals for testing and development. Unlike basic function generators, AWGs produce user-defined waveforms, making them valuable in applications that require precision and flexibility.

These instruments are used to simulate real-world signals in circuit design, debugging, and system validation. Common settings include electronics labs, manufacturing test benches, and research environments.

ValueTronics carries both new and used arbitrary waveform generators from trusted brands, helping engineers find the right tool for their application and budget.

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Frequently Asked Questions

What is the difference between an arbitrary waveform generator and an oscilloscope?
An arbitrary waveform generator creates electrical signals, while an oscilloscope captures and displays them. AWGs are used to send test signals into a circuit or device. Oscilloscopes measure the response by displaying voltage over time. In a typical setup, the generator outputs a waveform, and the oscilloscope monitors how the system under test reacts. Both instruments are essential for signal analysis, but serve opposite functions in the workflow.
What industries typically use arbitrary waveform generators?
Arbitrary waveform generators are used in industries that require precise signal simulation and testing. Common fields include aerospace, defense, telecommunications, semiconductor development, and automotive engineering. These instruments also play a key role in academic research and hardware design labs. Engineers rely on AWGs to replicate real-world conditions, evaluate circuit behavior, and validate performance in both analog and digital systems.
What are the key specifications to consider when buying an arbitrary waveform generator?
Important specifications include bandwidth, sample rate, memory depth, and vertical resolution. Bandwidth determines the frequency range of waveforms you can generate, while sample rate affects how accurately signals are reproduced. Memory depth controls the length of complex waveforms, and vertical resolution impacts signal detail and precision. Other factors may include channel count, waveform editing options, and available output modes based on your application.
What does “vertical resolution” mean in an arbitrary waveform generator?
Vertical resolution refers to how precisely the amplitude of a waveform can be defined. It is measured in bits and determines the number of discrete voltage levels the generator can output. A higher vertical resolution allows for smoother, more detailed waveforms, which is especially important when simulating low-level or complex signals. Common resolutions range from 12 to 16 bits, depending on the model.
Can I use an arbitrary waveform generator for analog and digital testing?
Yes, arbitrary waveform generators can be used for both analog and digital applications. In analog testing, AWGs create continuous waveforms to simulate sensor signals, power fluctuations, or communication patterns. For digital testing, they can generate pulse trains, logic-level signals, and custom bit patterns. Some models also include features like pattern sequencing or digital marker outputs to support mixed-signal environments.
What software is needed to create or load custom waveforms?
Arbitrary waveform generators typically include software for waveform editing and transfer. For example, Keysight instruments use PathWave BenchVue, while Tektronix units are compatible with ArbExpress. RIGOL offers Ultra Station for waveform customization and remote control. These tools let users create, import, and manage waveforms, with options to integrate with platforms like MATLAB or LabVIEW for advanced test setups.