Function Generators

A function generator is a versatile signal source that injects controlled electrical waveforms into a device under test. While an oscilloscope detects the signal, the function generator generates it, allowing engineers to simulate various inputs and observe how a circuit responds.

Why Choose a Function Generator?

Precise Waveform Control: Unlike a simple power supply, these units can produce a variety of periodic waveforms—such as sine, square, triangle, and sawtooth—with digital precision over frequency and amplitude.
Arbitrary Waveform Generation (AWG): Many modern digital models allow you to "draw" or upload custom, complex waveforms to simulate real-world sensor data or erratic signals that a standard sine wave cannot replicate.
Modulation Capabilities: They can apply AM (Amplitude), FM (Frequency), or PM (Phase) modulation to a signal, which is essential for testing communication equipment and radio receivers.
Frequency Sweeping: Most units can automatically "sweep" through a range of frequencies, which is vital for characterising the frequency response of filters, amplifiers, and speakers.

Core Applications

Circuit Characterisation: Injecting a known signal into an amplifier or filter to measure its gain, bandwidth, and distortion levels across different frequencies.
Sensor Simulation: Mimicking the output of automotive sensors (like crankshaft or ABS sensors) or medical transducers to test control modules without needing the actual hardware.
Clock Signal Generation: Providing a stable square-wave "heartbeat" to digital circuits and microcontrollers to verify timing margins and logic switching.
Educational Demonstrations: Visualising the fundamental concepts of electronics, such as resonance in LC circuits or the effects of clipping and saturation in power stages.
SeriesMakeImageChannel RangeMax. FrequencySample Rate(s)Amplitude (Vpp Max.)Basic AccuracyBuilt-in WaveformsMax Arb Waveform LengthSeries ModulationBuilt-In CounterStock StatusPrice From
DG6000 Series - Image of Rigol dg6004 front telonicuk2, 41GHz2.5GSa/s10 Vpp±1 ppm512 Types of Waveform256Mpts (512Mpts Opt.)AM, FM, PM, SUM, ASK, FSK, PSK, PWM-On Backorder£6,782.00
DG1000ZRigolImage of Dg1062z front telonic225MHz, 30MHz, 60MHz200MSa/s10 Vpp±1 ppm160 Types of Waveform2Mpts, 8Mpts (16Mpts Opt.)AM, FM, PM, ASK, FSK, PSK, PWM7 digits/s up to 200MHzIn Stock£259.00
DG4000RigolImage of Rigol dg4162 waveform generator front260MHz, 100MHz, 160MHz, 200MHz500MSa/s10 Vpp±2 ppm150 Types of Waveform16kptsAM, FM, PM, ASK, FSK, PSK, BPSK, QPSK, 3FSK, 4FSK, OSK, PWM7 digits/s up to 200MHzIn Stock£708.00
DG5000 ProRigolImage of Dg5508 front telonicuk2/4/8250MHz, 350MHz, 500MHz2.5GSa/s10 Vpp±1 ppm512 Types of Waveform128 MptsAM, FM, PM, ASK, FSK, PSK, PWM, SUM-In Stock£1,263.00
DG70000 Series - Image of Dg70000 front telonicuk4/25GHz5GSa/s0.7 Vpp±1 ppmN/AN/AN/AN/AOn Backorder£43,152.00
DG800 ProRigolImage of Rigol dg800 pro front1/225MHz, 50MHz625MSa/s10 Vpp (20 Vpp HighZ)±1 ppm148 Types of Waveform2Mpts (8Mpts Opt.)AM, FM, PM, ASK, FSK, PSK, PWM, SUM, Sweep, Burst, Sequence7 digits/s up to 250MHz, 6 digits/s up to 500MHzIn Stock£75.00
DG900 ProRigolImage of Rigol dg900 pro front250MHz, 70MHz, 100MHz250MSa/s10 Vpp±1 ppm148 Types of Waveform16Mpts (32Mpts Opt.)AM, FM, PM, ASK, FSK, PSK, PWM, SUM, Sweep, Burst, Sequence7 digits/s up to 250MHz, 6 digits/s up to 500MHz, 5 digits/s up to 1GHzIn Stock£552.00
SDG1000X PlusSiglentImage of Siglent sdg1062x plus 1 waveform generator telonic uk225MHz, 30MHz, 60MHz1GSa/s20 Vpp±1 ppm1968MptsAM, DSB-AM, FM, PM, ASK, FSK, PSK, PWMUp to 200MHzIn Stock£275.00
SDG2000XSiglentImage of Siglent sdg2000x function generator front240MHz, 80MHz, 120MHz1.2GSa/s20 Vpp±1 ppm196 Types of Waveform8MptsAM, DSB-AM, FM, PM, ASK, FSK, PSK, PWMUp to 200MHzIn Stock£400.00
SDG3000XSiglentImage of Sdg3202x telonicuk280MHz, 160MHz, 200MHz1.2GSa/s20 Vpp±1 ppm196 Types of Waveform20MptsAM, DSB-AM, FM, PM, ASK, FSK, PSK, PWMUp to 200MHzIn Stock£590.00
SDG6000XSiglentImage of Siglent sdg6000x function generator front2200MHz, 350MHz, 500MHz2.4GSa/s20 Vpp±1 ppm196 Types of Waveform20MptsAM, DSB-AM, FM, PM, ASK, FSK, PSK, PWMUp to 400MHzIn Stock£1,103.00
SDG7000ASiglentImage of Siglent sdg7000a function generator digital bus2350MHz, 500MHz, 1GHz5GSa/s24 Vpp±1 ppmTBA512MptsAM, DSB-AM, FM, PM, ASK, FSK, PSK, PWMUp to 400MHzOn Backorder£6,674.00
SDG800SiglentImage of Siglent sdg800 function generator front110MHz, 30MHz125MSa/s10 Vpp±50/100 ppm46 Types of Waveform16kptsAM, DSB-AM, FM, PM, FSK, ASK, PWM, Sweep, Burst-On Backorder£146.00