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. 761-0994
Mfr. Part No.33509B
£1,623.00
Each
Units
RSCAL 20MHz 1µHz 20MHz 1 μHz 20kHz 1µHz Yes Yes Yes Yes Yes Yes ±0.1ppm
RS Stock No. 763-9122
Mfr. Part No.33510B
£2,313.00
Each
Units
- 20MHz 1µHz 20MHz 1 μHz 20kHz 1µHz Yes Yes Yes Yes Yes Yes ±0.1ppm
RS Stock No. 761-1017
Mfr. Part No.33510B
£2,406.00
Each
Units
RSCAL 20MHz 1µHz 20MHz 1 μHz 20kHz 1µHz Yes Yes Yes Yes Yes Yes ±0.1ppm
RS Stock No. 192-5864
Mfr. Part No.GX305
BrandMetrix
£414.09
Each
Units
RSCAL 5MHz 0.001Hz 5MHz 0.001 Hz 2MHz 0.001Hz Yes Yes Yes - - - -
RS Stock No. 879-3823
Mfr. Part No.GX305
BrandMetrix
£321.09
Each
Units
- 2MHz 0.001Hz 5MHz 0.001 Hz 2MHz 0.001Hz Yes Yes Yes Yes Yes - ± 30 ppm for F < 10 kHz, ± 20 ppm for F ≥ 10 kHz
RS Stock No. 122-2091
Mfr. Part No.BK4014B
£536.00
Each
Units
RSCAL 12MHz 0.01Hz 12MHz 0.01 Hz 1MHz 0.01Hz Yes Yes Yes Yes Yes Yes -
RS Stock No. 121-7544
Mfr. Part No.BK4014B
£466.00
Each
Units
- 12MHz 0.01Hz 12MHz 0.01 Hz 1MHz 0.01Hz Yes Yes Yes Yes Yes Yes -
RS Stock No. 763-9131
Mfr. Part No.33520B
£2,588.00
Each
Units
- 30MHz 1µHz 30MHz 1 μHz 20kHz 1µHz Yes Yes Yes Yes Yes Yes ±0.1ppm
RS Stock No. 761-1051
Mfr. Part No.33520B
£2,716.00
Each
Units
RSCAL 30MHz 1µHz 30MHz 1 μHz 20kHz 1µHz Yes Yes Yes Yes Yes Yes ±0.1ppm
RS Stock No. 122-2085
Mfr. Part No.BK4013B
£455.00
Each
Units
RSCAL 12MHz 0.1Hz 12MHz 0.1 Hz 1MHz 0.1Hz Yes Yes Yes Yes - - -
RS Stock No. 121-7543
Mfr. Part No.BK4013B
£385.00
Each
Units
- 12MHz 0.1Hz 12MHz 0.1 Hz 1MHz 0.1Hz Yes Yes Yes Yes - - -
RS Stock No. 192-5866
Mfr. Part No.GX310
BrandMetrix
£488.01
Each
Units
RSCAL 10MHz 0.001Hz 10MHz 0.001 Hz 2MHz 0.001Hz Yes Yes Yes - - - -
RS Stock No. 879-3826
Mfr. Part No.GX310
BrandMetrix
£395.01
Each
Units
- 10MHz 0.001Hz 10MHz 0.001 Hz 2MHz 0.001Hz Yes Yes Yes - - - -
RS Stock No. 763-9138
Mfr. Part No.33519B
£1,710.00
Each
Units
- 30MHz 1µHz 30MHz 1 μHz 20kHz 1µHz Yes Yes Yes Yes Yes Yes ±0.1ppm
RS Stock No. 761-1032
Mfr. Part No.33519B
£1,803.00
Each
Units
RSCAL 30MHz 1µHz 30MHz 1 μHz 20kHz 1µHz Yes Yes Yes Yes Yes Yes ±0.1ppm
RS Stock No. 179-3504
Mfr. Part No.AFG31021
BrandTektronix
£1,680.00
Each
Units
- 25MHz - 20MHz 1 μHz 500kHz 1µHz Yes Yes Yes - Yes Yes -
RS Stock No. 181-3545
Mfr. Part No.TGF4042
BrandAim-TTi
£743.00
Each
Units
RSCAL 40MHz 1µHz 25 (Square & Pulse) MHz, 40 (Arbitrary) MHz 1 μHz - - Yes Yes Yes Yes Yes Yes <±1 (Initial Settling Error) ppm, <±1(Oscillator Aging Rate) ppm, <1(Temperature Range) ppm
RS Stock No. 179-3511
Mfr. Part No.AFG31022
BrandTektronix
£2,735.00
Each
Units
RSCAL 25MHz - 20MHz 1 μHz 500kHz 1µHz Yes Yes Yes - Yes Yes -
RS Stock No. 179-3505
Mfr. Part No.AFG31022
BrandTektronix
£2,650.00
Each
Units
- 25MHz - 20MHz 1 μHz 500kHz 1µHz Yes Yes Yes - Yes Yes -
RS Stock No. 179-3515
Mfr. Part No.AFG31102
BrandTektronix
£4,835.00
Each
Units
RSCAL 100MHz - 80MHz 1 μHz 1MHz 1µHz Yes Yes Yes - Yes Yes -