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. 800-3173
Mfr. Part No.TG5011A
BrandAim-TTi
HK$7,995.74
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. 465-8906
Mfr. Part No.TG315
BrandAim-TTi
HK$3,089.26
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. 465-8928
Mfr. Part No.TG330
BrandAim-TTi
HK$4,537.38
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. 879-3823
Mfr. Part No.GX305
BrandMetrix
HK$4,502.57
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 < 5%
RS Stock No. 800-8239
Mfr. Part No.TG5012A
BrandAim-TTi
HK$11,248.87
Each
units
50MHz 1µHz 10 MHz, 12.5 MHz, 50 MHz 1 μHz, 500 μHz 1MHz 1µHz Yes Yes Yes Yes Yes Yes 1ppm -
RS Stock No. 760-0363
Mfr. Part No.3390
BrandKeithley
HK$20,231.64
Each
units
1µHz 50mHz 25MHz 1 μHz, 500 μHz 200kHz 1µHz Yes Yes - Yes Yes Yes - -
RS Stock No. 800-3177
Mfr. Part No.TG2511A
BrandAim-TTi
HK$7,234.55
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. 686-2093
Mfr. Part No.U2722A
HK$24,924.20
Each
units
- - - - - - - - - Yes - - - -
RS Stock No. 763-9125
Mfr. Part No.33511B
HK$14,420.67
Each
units
20MHz 1µHz 20MHz 1 μHz 20kHz 1µHz Yes Yes Yes Yes Yes Yes ±0.1ppm -
RS Stock No. 768-3450
Mfr. Part No.TG1006
BrandAim-TTi
HK$4,688.41
Each
units
10MHz - 10MHz 1 mHz 1MHz - Yes Yes Yes Yes Yes Yes ±5ppm -60 dB, -40 dB, -20 dB, 0 dB
RS Stock No. 667-2591
Mfr. Part No.33210A
HK$14,077.35
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. 121-7543
Mfr. Part No.BK4013B
HK$4,563.01
Each
units
12MHz 0.1Hz 12MHz 0.1 Hz 1MHz 0.1Hz Yes Yes Yes Yes - - - -
RS Stock No. 800-8248
Mfr. Part No.TG2512A
BrandAim-TTi
HK$8,674.17
Each
units
25MHz 1µHz 6 MHz, 6.25 MHz, 25 MHz 1 μHz, 500 μHz 500kHz 1µHz Yes Yes Yes Yes Yes Yes 1ppm -
RS Stock No. 507-7128
Mfr. Part No.TG2000
BrandAim-TTi
HK$7,075.02
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
HK$10,224.86
Each
units
60MHz 1µHz 30MHz 1 μHz - - Yes Yes Yes - Yes Yes ±1ppm -
RS Stock No. 175-2532
Mfr. Part No.BK4005DDS
HK$3,545.17
Each
units
5MHz 1Hz 5MHz 1 Hz 5MHz 1Hz Yes Yes - - - - - -20dB
RS Stock No. 181-3543
Mfr. Part No.TGF4242
BrandAim-TTi
HK$14,477.13
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. 175-2533
Mfr. Part No.BK4011A
HK$5,505.13
Each
units
5MHz 0.5Hz 5MHz 0.5 Hz 5MHz 0.5Hz - - - - - - ±10ppm -20dB
RS Stock No. 454-6689
Mfr. Part No.GF266
BrandELC
HK$4,243.46
Each
units
12MHz 11µHz - - - - Yes Yes Yes - Yes - - -40 dB, -20 dB, 0 dB
RS Stock No. 179-3507
Mfr. Part No.AFG31052
BrandTektronix
HK$35,242.05
Each
units
50MHz - 40MHz 1 μHz 800kHz 1µHz Yes Yes Yes - Yes Yes - -