Function Generators

A function generator is a test and measuring device which creates electronic signals in many different waveforms. The generator's main purpose, when connected to a circuit, is to produce controllable waveforms with adjustable frequencies, amplitude outputs, or DC offsets. Function generators help to save time in building oscillators when you are fabricating prototype audio circuits or low and high-pass filters.

Function generators produce a range of different waveforms, such as sine waves, triangular waves, sawtooth waves and square waves. The signal generator can produce repetitive signals and can also change some characteristics of the wave. You can view the signals generated by the device by attaching it to an oscilloscope. Function generators may provide other functions, such as DC offset and variable symmetry. There is usually a screen on the generator which displays the monitoring of the output.

Frequency range and waveforms

  • 0.001 Hz to 2000 MHz Sine wave
  • 0.001 Hz to 160 MHz Square wave
  • 0.001 Hz to 800 kHz Triangle wave

Where are function generators used?

  • Integrated electronic testing
  • Embedded systems
  • Digital circuits
  • Analogue signal processing
  • Laboratory testing

Function Generators vs. Arbitrary Waveform Generators (AWGs)

Function generators are usually slightly cheaper than AWGs and they perform quite similarly. However, Arbitrary Waveform Generators generally provide more functions and offer the ability to create a custom waveform output of any size. Function generators offer a periodic waveform.


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Description Price Maximum Frequency Range Sinewave Minimum Frequency Range Sinewave Maximum Frequency Range Square Pulse and Arbitrary Waveform Minimum Frequency Range Square Pulse and Arbitrary Waveform Maximum Frequency Range Triangle/Saw Minimum Frequency Range Triangle/Saw Digital Frequency Digital Amplitude and Offset Internal Linear and Log Sweep Variable Sweep Internal and External Amplitude Modulation FM Modulation Time Base Accuracy Attenuation
RS Stock No. 179-3504
Mfr. Part No.AFG31021
BrandTektronix
MYR11,551.54
Each
units
25MHz - 20MHz 1 μHz 500kHz 1µHz Yes Yes Yes - Yes Yes - -
RS Stock No. 179-3505
Mfr. Part No.AFG31022
BrandTektronix
MYR17,301.97
Each
units
25MHz - 20MHz 1 μHz 500kHz 1µHz Yes Yes Yes - Yes Yes - -
RS Stock No. 179-3507
Mfr. Part No.AFG31052
BrandTektronix
MYR19,174.49
Each
units
50MHz - 40MHz 1 μHz 800kHz 1µHz Yes Yes Yes - Yes Yes - -
RS Stock No. 179-3506
Mfr. Part No.AFG31051
BrandTektronix
MYR12,572.74
Each
units
50MHz - 40MHz 1 μHz 800kHz 1µHz Yes Yes Yes - Yes Yes - -
RS Stock No. 179-3508
Mfr. Part No.AFG31101
BrandTektronix
MYR22,340.91
Each
units
100MHz - 80MHz 1 μHz 1MHz 1µHz Yes Yes Yes - Yes Yes - -
RS Stock No. 179-3509
Mfr. Part No.AFG31102
BrandTektronix
MYR31,546.97
Each
units
100MHz - 80MHz 1 μHz 1MHz 1µHz Yes Yes Yes - Yes Yes - -
RS Stock No. 179-8132
Mfr. Part No.AFG31151
BrandTektronix
MYR25,779.95
Each
units
150MHz 1µHz 120MHz 1 μHz - - Yes Yes Yes Yes Yes Yes - -
RS Stock No. 179-8129
Mfr. Part No.AFG31252
BrandTektronix
MYR73,296.80
Each
units
250MHz 1µHz 160MHz 1 μHz - - Yes Yes Yes Yes Yes Yes - -
RS Stock No. 179-8130
Mfr. Part No.AFG31251
BrandTektronix
MYR50,134.95
Each
units
250MHz 1µHz 160MHz 1 μHz - - Yes Yes Yes Yes Yes Yes - -
RS Stock No. 179-8131
Mfr. Part No.AFG31152
BrandTektronix
MYR37,058.86
Each
units
150MHz 1µHz 120MHz 1 μHz - - Yes Yes Yes Yes Yes Yes - -