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. 800-3177
Mfr. Part No.TG2511A
BrandAim-TTi
TWD27,128.00
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. 667-2591
Mfr. Part No.33210A
TWD52,537.00
Each
units
10MHz 0.001Hz 3 MHz, 5 MHz, 10 MHz 0.001 Hz, 1 mHz 100kHz 0.001Hz Yes Yes Yes Yes Yes Yes ±20ppm -
RS Stock No. 760-0363
Mfr. Part No.3390
BrandKeithley
TWD75,505.00
Each
units
1µHz 50mHz 25MHz 1 μHz, 500 μHz 200kHz 1µHz Yes Yes - Yes Yes Yes - -
RS Stock No. 465-8906
Mfr. Part No.TG315
BrandAim-TTi
TWD11,487.00
Each
units
3MHz 0.03Hz 3MHz 0.03 Hz 3MHz 0.03Hz Yes Yes - - - - ±10ppm -60 dB, -40 dB, -20 dB, 0 dB
RS Stock No. 686-2093
Mfr. Part No.U2722A
TWD94,963.00
Each
units
- - - - - - - - - Yes - - - -
RS Stock No. 763-9144
Mfr. Part No.33522B
TWD132,112.00
Each
units
30MHz 1µHz 30MHz 1 μHz 20kHz 1µHz Yes Yes Yes Yes Yes Yes ±0.1ppm -
RS Stock No. 763-9125
Mfr. Part No.33511B
TWD79,258.00
Each
units
20MHz 1µHz 20MHz 1 μHz 20kHz 1µHz Yes Yes Yes Yes Yes Yes ±0.1ppm -
RS Stock No. 123-3529
BrandRS PRO
TWD10,715.00
Each
units
5MHz 0.1Hz 5MHz 0.1 Hz 1MHz 0.1Hz Yes Yes Yes Yes Yes Yes ±20ppm -
RS Stock No. 763-9131
Mfr. Part No.33520B
TWD113,936.00
Each
units
30MHz 1µHz 30MHz 1 μHz 20kHz 1µHz Yes Yes Yes Yes Yes Yes ±0.1ppm -
RS Stock No. 179-8131
Mfr. Part No.AFG31152
BrandTektronix
TWD244,149.00
Each
units
150MHz 1µHz 120MHz 1 μHz - - Yes Yes Yes Yes Yes Yes - -
RS Stock No. 188-6966
Mfr. Part No.SQ50
BrandIKALOGIC
TWD3,567.00
Each
units
- - - - - - Yes - - - - Yes - -
RS Stock No. 188-6969
Mfr. Part No.SP209
BrandIKALOGIC
TWD13,987.00
Each
units
- - - - - - - - - - - - - -
RS Stock No. 465-8928
Mfr. Part No.TG330
BrandAim-TTi
TWD15,508.00
Each
units
3MHz 0.03Hz 3MHz 0.03 Hz 3MHz 0.03Hz Yes Yes Yes Yes Yes - ±10ppm -60 dB, -40 dB, -20 dB, 0 dB
RS Stock No. 179-8132
Mfr. Part No.AFG31151
BrandTektronix
TWD172,713.00
Each
units
150MHz 1µHz 120MHz 1 μHz - - Yes Yes Yes Yes Yes Yes - -
RS Stock No. 123-3530
BrandRS PRO
TWD14,604.00
Each
units
12MHz 0.1Hz 12MHz 0.1 Hz 1MHz 0.1Hz Yes Yes Yes Yes Yes Yes ±20ppm -
RS Stock No. 763-9122
Mfr. Part No.33510B
TWD109,032.00
Each
units
20MHz 1µHz 20MHz 1 μHz 20kHz 1µHz Yes Yes Yes Yes Yes Yes ±0.1ppm -
RS Stock No. 123-3532
BrandRS PRO
TWD17,588.00
Each
units
12MHz 0.1Hz 12MHz 0.1 Hz 1MHz 0.1Hz Yes Yes Yes Yes Yes Yes ±20ppm -
RS Stock No. 123-3556
BrandRS PRO
TWD14,242.00
Each
units
5MHz 0.5Hz 5MHz 0.5 Hz 5MHz 0.5Hz Yes Yes Yes Yes Yes Yes ±10ppm -20dB
RS Stock No. 181-3543
Mfr. Part No.TGF4242
BrandAim-TTi
TWD54,029.00
Each
units
240MHz 1µHz - 1 μHz 5MHz 1µHz Yes Yes Yes Yes - Yes <1(Temperature Range) ppm, <±1 (Initial Settling Error) ppm, <±1(Oscillator Aging Rate) ppm -
RS Stock No. 507-7128
Mfr. Part No.TG2000
BrandAim-TTi
TWD26,404.00
Each
units
20MHz 1mHz 20MHz 1 mHz 1MHz 1mHz Yes Yes Yes Yes Yes Yes ±10ppm -