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 Calibrated 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
RS stock no. 123-3530
BrandRS PRO
R 7,568.56
Each
units
- 12MHz 0.1Hz 12MHz 0.1 Hz 1MHz 0.1Hz Yes Yes Yes Yes Yes Yes ±20ppm
RS stock no. 123-3529
BrandRS PRO
R 5,743.50
Each
units
- 5MHz 0.1Hz 5MHz 0.1 Hz 1MHz 0.1Hz Yes Yes Yes Yes Yes Yes ±20ppm
RS stock no. 465-8906
Mfr. Part No.TG315
BrandAim-TTi
R 5,931.96
Each
units
- 3MHz 0.03Hz 3MHz 0.03 Hz 3MHz 0.03Hz Yes Yes - - - - ±10ppm
RS stock no. 123-3554
BrandRS PRO
R 5,042.80
Each
units
- 3MHz 0.3Hz 3MHz 0.3 Hz 3MHz 0.3Hz Yes Yes Yes Yes Yes - ±10ppm
RS stock no. 507-7128
Mfr. Part No.TG2000
BrandAim-TTi
R 13,024.00
Each
units
- 20MHz 1mHz 20MHz 1 mHz 1MHz 1mHz Yes Yes Yes Yes Yes Yes ±10ppm
RS stock no. 898-6858
Mfr. Part No.AFG1062
BrandTektronix
R 19,028.00
Each
units
- 60MHz 1µHz 30MHz 1 μHz - - Yes Yes Yes - Yes Yes ±1ppm
RS stock no. 763-9113
Mfr. Part No.33509B
R 33,906.42
Each
units
- 20MHz 1µHz 20MHz 1 μHz 20kHz 1µHz Yes Yes Yes Yes Yes Yes ±0.1ppm
RS stock no. 121-7544
Mfr. Part No.BK4014B
R 10,444.46
Each
units
- 12MHz 0.01Hz 12MHz 0.01 Hz 1MHz 0.01Hz Yes Yes Yes Yes Yes Yes -
RS stock no. 121-7543
Mfr. Part No.BK4013B
R 8,724.46
Each
units
- 12MHz 0.1Hz 12MHz 0.1 Hz 1MHz 0.1Hz Yes Yes Yes Yes - - -
RS stock no. 879-3820
Mfr. Part No.GX310-P
BrandMetrix
R 10,178.83
Each
units
- 10MHz 0.001Hz 10MHz 0.001 Hz 2MHz 0.001Hz Yes Yes Yes - - - -
RS stock no. 800-3173
Mfr. Part No.TG5011A
BrandAim-TTi
R 14,838.00
Each
units
- 50MHz 1µHz 10 MHz, 12.5 MHz, 50 MHz 1 μHz, 500 μHz 1MHz 1µHz Yes Yes Yes Yes Yes Yes -
RS stock no. 123-3533
BrandRS PRO
R 9,518.24
Each
units
- 25MHz 0.1Hz 25MHz 0.1 Hz 1MHz 0.1Hz Yes Yes Yes Yes Yes Yes ±20ppm
RS stock no. 763-9125
Mfr. Part No.33511B
R 39,619.80
Each
units
- 20MHz 1µHz 20MHz 1 μHz 20kHz 1µHz Yes Yes Yes Yes Yes Yes ±0.1ppm
RS stock no. 506-6566
Mfr. Part No.GF467F
BrandELC
R 6,744.91
Each
units
- 5MHz 0.01Hz 5MHz 0.01 Hz 5MHz 0.01Hz Yes Yes Yes Yes Yes Yes -
RS stock no. 123-3532
BrandRS PRO
R 9,029.50
Each
units
- 12MHz 0.1Hz 12MHz 0.1 Hz 1MHz 0.1Hz Yes Yes Yes Yes Yes Yes ±20ppm
RS stock no. 763-9138
Mfr. Part No.33519B
R 37,684.80
Each
units
- 30MHz 1µHz 30MHz 1 μHz 20kHz 1µHz Yes Yes Yes Yes Yes Yes ±0.1ppm
RS stock no. 800-3177
Mfr. Part No.TG2511A
BrandAim-TTi
R 13,548.00
Each
units
- 25MHz 1µHz 10 MHz, 12.5 MHz, 50 MHz 1 μHz, 500 μHz 1MHz 1µHz Yes Yes Yes Yes Yes Yes -
RS stock no. 454-6689
Mfr. Part No.GF266
BrandELC
R 7,835.51
Each
units
- 12MHz 11µHz - - - - Yes Yes Yes - Yes - -
RS stock no. 123-3534
BrandRS PRO
R 10,581.00
Each
units
- 25MHz 1µHz 25MHz 1 μHz 1MHz - Yes Yes Yes Yes Yes Yes ±20ppm
RS stock no. 879-3823
Mfr. Part No.GX305
BrandMetrix
R 7,563.13
Each
units
- 2MHz 0.001Hz 5MHz 0.001 Hz 2MHz 0.001Hz Yes Yes Yes Yes Yes - ± 20 ppm for F ≥ 10 kHz, ± 30 ppm for F < 10 kHz