Signal generator is a common instrument in area of education, science, telecommunication, industry, etc., which can generate standard function or arbitrary waveform signal. Then how to select a suitable signal generator? Parameters such as

maximum frequency, output channels, frequency resolution, sample rate, accuracy, amplitude, waveforms, etc. should be considered.

Here we introduce key factors for your reference:

1.    Sample Rate

Sample rate indicates the maximum clock rate or sample rate when generator works, usually expressed in XXX M points per second or XXX G points per second (MSa/s or GSa/s). Generally speaking, you need to select the ones whose sample rate is twice of the highest frequency component of the signal to guarantee the signal is shown accurately. It also influences the minimum time increment of the waveform.

2.    Waveform Length

Waveform length plays an important role in the signal fidelity, because it can define a waveform by storing the data points. The more points the waveform has, the more details of waveform can be stored.

3.    Vertical Resolution

Vertical resolution is related to generator’s DAC binary word length, expressed in bits. The more bits are, the higher resolution is. DAC vertical resolution influences waveform’s amplitude accuracy and distortion. Although the higher the better, most generators use the compromise, because the higher the resolution is, the lower the sample rate is.

4.    Features and Functions

The standard waveform, modulation function, amplitude and waveform editor, etc. should also be taken into your consideration.

5.    Competitive price and better after sale service

Attached the selection guide of generators provided by Suin.

And welcome to contact us if you are interested in any one.