Function Generators Market Size, Waveform Testing, DDS Technology & Forecast 2035

Function Generators Market Size & Forecast 2035

The global function generators market was valued at US$2.04 billion in 2025 and is projected to reach US$4.09 billion by 2035, growing at a CAGR of 7.2% during 2026-2035. Electronics R&D, semiconductor validation, automotive electronics, aerospace systems, wireless communication, power-device testing, and automated production environments are increasing demand for programmable waveform generation. A current market benchmark places Asia-Pacific at 43.4% of global revenue in 2025.

Function generators produce repeatable electrical waveforms including sine, square, triangle, ramp and pulse signals. Modern instruments increasingly add arbitrary waveform memory, digital modulation, multi-channel synchronization, frequency counting, waveform sequencing and remote software control, blurring the historical boundary between a basic function generator and an arbitrary function generator. DataM Intelligence segments the market by analog and digital products, frequencies up to 50 MHz, 50-100 MHz, and above 100 MHz, and applications across automotive, energy, wireless communication, infrastructure, aerospace, and defense.

Market Highlights

• 2025 Market Size: US$2.04 Billion
• 2035 Market Size: US$4.09 Billion
• CAGR, 2026-2035: 7.2%
• Largest Region: Asia-Pacific, 43.4% share in 2025
• Core Frequency Classes: Up to 50 MHz, 50-100 MHz, and Above 100 MHz
• Primary Applications: Aerospace & defense, automotive, energy, semiconductor testing, wireless communications, and general electronics
• Technology Shift: Basic DDS generators → arbitrary/function generators → multi-channel synchronized waveform platforms
• Key Performance Metrics: Bandwidth, sampling rate, vertical resolution, jitter, waveform memory, channel count, and output amplitude
• High-Growth Test Areas: SiC/GaN power devices, semiconductor validation, EV power electronics, sensor simulation, and automated test
• Competitive Themes: Higher channel density, deeper waveform memory, software automation and improved signal fidelity. 

The Market Is Moving Beyond the Traditional Function Generator

A conventional function generator was designed primarily to produce a small group of periodic waveforms at accurately controlled frequencies.

That definition still describes entry-level instruments, but it no longer reflects the most competitive part of the market.

Current bench generators increasingly combine:

sine and square generation, pulse generation, arbitrary waveforms, waveform sequencing, AM/FM/PM/PWM modulation, noise generation, digital patterns, frequency counting, synchronized multi-channel output and PC-based automation.

RIGOL's current DG5000 Pro, for example, combines function generation, arbitrary waveforms, noise, pulse, harmonic generation and analog/digital modulation in configurations reaching eight channels. SIGLENT's SDG7000A integrates traditional waveform generation with arbitrary signals, IQ generation, PRBS patterns and vector-signal capability.

The competitive question is therefore shifting from:

“Can the instrument produce a sine wave?”

to:

“How accurately can it reproduce the signal that the device under test will encounter?”

That change is widening the market from education laboratories and basic troubleshooting into semiconductor characterization, advanced power electronics, automated validation and communication-system simulation.

Function Generator, AFG and AWG Are Not Interchangeable Terms

Search demand frequently combines function generators, arbitrary function generators and arbitrary waveform generators even though their architectures differ.

Function Generator

A function generator produces predefined periodic waveforms such as sine, square, pulse, triangle and ramp signals.

Modern function generators commonly use Direct Digital Synthesis (DDS). DDS stores a waveform representation and selects points according to a phase accumulator, allowing highly precise and rapidly adjustable output frequencies.

This architecture works particularly well for:

• filter testing
• amplifier response testing
• clock simulation
• repetitive sensor signals
• education labs
• circuit troubleshooting.

Arbitrary Function Generator

An AFG retains the standard functions of a function generator but adds memory for user-defined periodic waveforms.

That enables reproduction of a sensor signature, custom pulse shape or captured waveform while retaining the frequency agility associated with DDS architectures.

Most premium bench products sold today fall somewhere within this function/AFG category.

Arbitrary Waveform Generator

An AWG is designed around much larger waveform memory and can reproduce long, complex or non-repeating waveform sequences point by point.

AWGs are more appropriate for complex communication signals, advanced semiconductor characterization, high-speed serial testing, quantum research and sophisticated signal emulation where the exact sequence matters more than rapidly changing a repetitive waveform's frequency.

This distinction matters to market sizing. A broad signal-generator study can produce a materially larger estimate than a strict function-generator market because high-end AWGs and RF vector generators can cost substantially more than conventional bench instruments.

Six Specifications Now Determine Most Product Differentiation

The old segmentation by frequency alone does not describe current product competition adequately.

1. Bandwidth

Bandwidth determines the highest-frequency content the output circuitry can reproduce without unacceptable attenuation.

Entry-level generators may operate around 20-60 MHz. More advanced AFGs reach 100-500 MHz, while products combining AFG and advanced arbitrary capabilities can extend toward 1 GHz.

Tektronix currently spans 25-250 MHz in the AFG31000 family, RIGOL reaches 500 MHz in DG5000 Pro, and SIGLENT reaches 1 GHz in the SDG7000A.

2. Sample Rate

Sampling rate affects how accurately complex waveform details can be reconstructed.

Tektronix AFG31000 models reach 2 GSa/s, RIGOL's DG5000 Pro reaches 2.5 GSa/s, and SIGLENT SDG7000A reaches 5 GSa/s.

Sampling rate should not be interpreted in isolation. Analog bandwidth, reconstruction filters, and waveform architecture also determine the real output.

3. Vertical Resolution

Vertical resolution determines the number of voltage levels available from the digital-to-analog converter.

Higher resolution supports smaller amplitude changes and can improve reproduction of detailed arbitrary waveforms.

Modern function/AFG products increasingly use 14-bit or 16-bit architectures. Keysight's FG33532A uses 16-bit arbitrary waveform generation, while RIGOL's DG5000 Pro provides 16-bit vertical resolution.

4. Jitter

Timing uncertainty becomes particularly important in pulse, digital-clock, and power-electronics testing.

Keysight's current FG33532A specifies jitter below 50 ps, while SIGLENT's TrueArb architecture targets low-jitter waveform reproduction across high-performance test applications.

5. Waveform Memory

Memory determines how much custom signal information can be stored.

Tektronix's AFG31000 offers 16 Mpoints per channel as standard and optional deeper memory. RIGOL DG5000 Pro supports 64 Mpoints per channel with larger optional configurations.

Deep memory matters far more for complex arbitrary signals than for basic sine-wave generation.

6. Channel Count and Synchronization

Dual-channel instruments are now common, but advanced validation increasingly requires several phase-aligned signals.

RIGOL expanded DG5000 Pro into four- and eight-channel versions in 2025, with channel synchronization designed for high-density testing. NI's PXI waveform architecture serves the same requirement through modular synchronized instrumentation.

Multi-channel capability is becoming one of the clearest differentiators between education-grade bench equipment and advanced validation platforms.

Key Takeaways

• The global function generators market is projected to expand from US$2.04 billion in 2025 to US$4.09 billion by 2035, supported by increasingly complex electronics validation requirements.
• Asia-Pacific held 43.4% of the market in 2025, reflecting its large electronics, semiconductor, automotive and communications manufacturing base.
• The market is converging with arbitrary waveform generation. New instruments frequently combine basic functions with user-defined waveform memory, sequencing, pulses and modulation rather than competing as standalone sine/square generators.
• Multi-channel synchronized output is becoming a premium growth layer. RIGOL expanded its DG5000 Pro platform to as many as eight channels, while PXI-based systems support synchronized modular waveform generation.
• Power semiconductor testing is creating a distinct application opportunity. Function/AFGs generate the controlled gate pulses used in double-pulse characterization of MOSFETs, IGBTs and wide-bandgap devices.
• Test automation is moving closer to the instrument. LAN/USB connectivity, Python/LabVIEW control, waveform builders and multi-instrument software are reducing manual signal setup in validation and production environments.
• Signal fidelity increasingly matters as much as headline frequency. Low jitter, low distortion, higher vertical resolution and precise point-by-point waveform reproduction are becoming stronger competitive claims across Keysight, RIGOL and SIGLENT portfolios. 

Power Semiconductor Testing Creates a New High-Value Use Case

One of the strongest current growth areas sits outside the traditional function-generator narrative: double-pulse testing of power semiconductors.

MOSFETs, IGBTs, SiC MOSFETs and related switching devices need to be characterized under controlled transient conditions. Double-pulse testing evaluates parameters including turn-on and turn-off energy, switching delays, current and voltage slew rates and reverse-recovery behavior.

An arbitrary/function generator produces the precisely timed gate pulses required for the test.

Tektronix has integrated dedicated double-pulse functionality directly into the AFG31000 platform. The instrument can create the required pulse sequence without an external waveform-generation application.

Keysight supports the same application through its Smart Bench Essentials Plus function/waveform generator and BenchLink waveform software. Its current guidance uses a 100 MHz Trueform generator to create configurable gate-drive waveforms for power-device characterization.

This application is gaining importance as electric vehicles, renewable-energy inverters, data-center power systems and industrial drives increase demand for high-efficiency SiC and GaN power electronics.

Semiconductor Expansion Raises the Volume of Electronic Validation

Global semiconductor sales reached US$791.7 billion in 2025, increasing 25.6% year over year, according to the Semiconductor Industry Association. SIA expects the industry to approach US$1 trillion in annual revenue during 2026.

Every increase in semiconductor complexity expands validation requirements somewhere in the development chain.

Function and waveform generators are used to stimulate:

analog front ends, power-management circuits, sensors, amplifiers, filters, clocks, embedded systems and mixed-signal designs.

The strongest effect is not necessarily a one-to-one relationship between semiconductor sales and function-generator units. The effect appears through greater R&D intensity, more validation scenarios and more automated test benches.

NI explicitly positions waveform generators for electronics, automotive, aerospace and defense design, validation and production testing.

As semiconductor development moves toward increasingly integrated devices, synchronized multi-instrument testing will capture more value than basic standalone waveform generation.

Automotive Electronics Increase Demand for Real-World Signal Simulation

Modern vehicles contain large numbers of electronic controllers, sensors, communications interfaces and power converters.

A function/AFG can emulate sensor behavior before a complete mechanical system exists.

Typical signals include:

• crank or position sensors
• speed and rotation signals
• actuator inputs
• analog control voltages
• pulse-width-modulated signals
• repetitive fault conditions
• power-device gate signals.

Tektronix describes function/AFG use across scenarios ranging from standard electrical waveforms to simulated sensor outputs. NI similarly positions function generators in automotive validation where repetitive signals are used to verify semiconductor devices and electronic systems.

Electric vehicles add another test layer because traction inverters, onboard chargers and DC-DC converters use fast switching power devices.

This connects automotive waveform-generator demand increasingly with the same double-pulse and power-device validation market serving renewable energy and industrial power electronics.

Communications Testing Is Pushing Function Generators Above 100 MHz

The traditional function-generator market was concentrated below 50 MHz, which remains an important volume range for general electronics and education.

Higher-frequency products are broadening the application base.

SIGLENT's SDG7000A can generate continuous waveforms to 1 GHz and adds optional IQ/vector-signal capabilities. Its associated software supports Bluetooth, IoT, custom OFDM and custom IQ signal creation.

RIGOL DG5000 reaches 350 MHz in its existing platform, while DG5000 Pro extends to 500 MHz.

At these performance levels, the boundary between an AFG and an entry RF/vector source becomes application-dependent.

A conventional function generator remains suitable when a repetitive waveform, modulation or baseband signal is required. Dedicated RF signal generators become more appropriate where calibrated RF output power, phase noise, modulation accuracy and RF-specific standards testing dominate.

Multi-Channel Instruments Are Replacing Several Independent Bench Sources

A traditional engineering bench may contain several separate generators when a circuit requires multiple stimulus signals.

That architecture creates synchronization and trigger complexity.

Current multi-channel products consolidate those outputs into one instrument.

RIGOL's July 2025 DG5000 Pro expansion added four- and eight-channel variants with channel-to-channel skew below 500 ps and isolated channel groups. The platform reaches 500 MHz bandwidth and 2.5 GSa/s sampling.

SIGLENT's SDG7000A supports synchronized high-performance waveform generation and can be expanded for multi-channel test scenarios.

NI takes a modular route. PXI waveform generators can operate as synchronized components in larger mixed-signal automated systems, with support for software environments including LabVIEW, Python, C/C++ and C#.

This architecture is particularly important in:

power electronics, phased systems, multi-sensor simulation, motor-control validation and production test.

Software Is Becoming Part of the Function Generator

Remote control once meant sending SCPI commands over GPIB.

Current products increasingly connect waveform design, instrument configuration and automated measurements into a software workflow.

Keysight's FG33532A includes USB and LAN connectivity and works with waveform-building software.

Tektronix updated its KickStart Instrument Control Software in May 2026. The software can automate multiple instruments from one PC environment and store reusable test configurations.

NI's PXI waveform generators are supported through NI-FGEN and InstrumentStudio, with programming interfaces extending to LabVIEW, Python, and several conventional development languages.

SIGLENT's SigIQPro links signal design and waveform downloading with its higher-performance waveform generators.

The instrument market is consequently shifting from individual hardware purchases toward programmable test environments.

Education Remains a Large Volume Market Below 50 MHz

Advanced applications are growing quickly, but entry-level function generators remain standard equipment in electrical-engineering and electronics laboratories.

Basic experiments usually require:

sine waves, square waves, triangle waves, frequency sweeps, adjustable amplitude, DC offset and modulation.

Keysight's EDU33211A is representative of this tier, offering 20 MHz bandwidth, standard and arbitrary waveform functionality and USB/LAN connectivity.

Tektronix's AFG1000 serves a similar educational and general-purpose tier with dual channels and 25 or 60 MHz bandwidth.

RIGOL and B&K Precision compete aggressively in the same segment, helping make capabilities that were previously limited to premium lab equipment accessible to smaller research groups and teaching laboratories. B&K's current portfolio spans dual-channel function/AFG products from lower frequencies through 120 MHz.

The education segment supports high unit volumes even though average selling prices are lower than aerospace, semiconductor, and automated-test configurations.

Asia-Pacific Holds 43.4% of the Market

Asia-Pacific represented 43.4% of global function generator revenue in 2025, making it the largest regional market in the current benchmark.

The region combines several demand centers that reinforce each other:

semiconductor manufacturing, consumer electronics, automotive electronics, renewable-energy equipment and communication infrastructure.

China also contains major domestic test-equipment manufacturers including RIGOL and SIGLENT, whose current products compete directly with established U.S., Japanese and European instrumentation companies on bandwidth, channel density and waveform capability.

Japan maintains a strong position in automotive electronics, industrial equipment and precision engineering, while South Korea and Taiwan contribute large semiconductor and electronic-device industries.

India's electronics manufacturing and automotive engineering base provides an additional expansion channel across education, industrial testing and R&D laboratories.

North America Remains the Premium Test and Measurement Hub

North America maintains one of the world's deepest markets for semiconductor design, aerospace and defense, advanced computing and electronic R&D.

Keysight, Tektronix and NI have major roots in the United States, creating a large ecosystem around automated test, instrumentation software and calibration.

The region is particularly important in high-value applications where test equipment represents only a small proportion of total development cost but measurement errors can delay qualification or product release.

Function generators in these environments are frequently integrated with:

oscilloscopes, spectrum analyzers, power supplies, source-measure units, digitizers and switching systems.

The growing semiconductor and power-electronics industries strengthen this premium segment even as Asia-Pacific leads total market revenue.

Europe Is Closely Linked to Automotive and Power Electronics

European demand is supported by automotive engineering, industrial automation, aerospace, renewable-energy equipment and university research.

Power electronics is becoming particularly relevant as European manufacturers develop EV drivetrains, charging equipment, industrial drives and renewable-energy converters.

Function generators used with oscilloscopes can perform double-pulse tests on MOSFETs and IGBTs, allowing switching loss and recovery behavior to be evaluated under controlled conditions.

The region also maintains substantial demand for instrumentation in telecommunications, scientific laboratories and industrial electronics.

Competitive Technology Map

Keysight Technologies

Keysight introduced Smart Bench Essentials Plus in August 2025, including a new waveform-generator family designed around improved precision and software-enabled bench testing.

The current FG33532A provides:

• 100 MHz bandwidth
• two channels
• 320 MSa/s maximum sampling
• 16-bit arbitrary waveform generation
• waveform memory up to 16 million samples per channel with options
• jitter below 50 ps
• USB and LAN connectivity. 

Keysight differentiates its platform through Trueform waveform-generation technology rather than conventional DDS alone.

Tektronix

Tektronix spans education and higher-performance applications through AFG1000 and AFG31000.

AFG31000 reaches:

• 250 MHz bandwidth
• 2 GSa/s
• 14-bit vertical resolution
• up to two channels
• substantial arbitrary waveform memory. 

Its strongest specialist feature is integrated double-pulse generation for power-semiconductor testing.

RIGOL Technologies

RIGOL has pushed strongly into higher channel density.

The DG5000 Pro family reaches:

• 500 MHz
• 2.5 GSa/s
• 16-bit vertical resolution
• up to eight channels
• 64 Mpoints per channel standard waveform memory in current configurations. 

The 2025 expansion into four- and eight-channel instruments gives RIGOL a differentiated position in synchronized waveform testing.

SIGLENT Technologies

SIGLENT's SDG7000A extends the AFG category toward RF and vector-signal functions.

The platform reaches:

• 1 GHz output frequency
• 5 GSa/s
• 14-bit resolution
• arbitrary and DDS modes
• optional IQ generation
• vector signals up to 500 MS/s symbol rate. 

Its architecture demonstrates how the upper end of the function-generator market is converging with more specialized signal sources.

NI

NI concentrates on modular and automated waveform generation.

Its current PXI arbitrary waveform generators offer up to 80 MHz, 800 MS/s and 16-bit resolution, with synchronization across PXI systems and programmatic control.

An April 2026 update to the PXIe-54x3 platform added operational improvements including independent sessions for individual channels.

B&K Precision

B&K Precision retains a strong position in general-purpose bench and educational instruments.

Its current 4064B offers 120 MHz dual-channel operation, while lower-frequency 4060B and 4050B models address mainstream laboratory requirements.

Notable Product and Platform Developments

April-May 2026 - Automated Test Software Expands

NI updated support information for its latest PXIe waveform-generator family in April 2026, while Tektronix released KickStart Instrument Control Software 2.11.5 in May, reinforcing the movement toward software-controlled multi-instrument benches.

March 2026 - SIGLENT Updates Signal-Generation Software

SIGLENT updated SigIQPro in March 2026. The platform supports signal creation for Bluetooth, IoT, OFDM and custom IQ workflows when paired with compatible waveform generators.

August 2025 - Keysight Launches Smart Bench Essentials Plus

Keysight introduced a new bench portfolio combining waveform generation, oscilloscopes, multimeters and power supplies with a stronger emphasis on precision and automation.

July 2025 - RIGOL Expands DG5000 Pro to Eight Channels

RIGOL added four- and eight-channel DG5000 Pro models, targeting synchronized semiconductor, automated and multi-signal testing.

2025-2026 - Power-Device Testing Moves Into General-Purpose AFGs

Keysight and Tektronix both position function/arbitrary waveform generators as practical sources for double-pulse testing of power semiconductors, reducing dependence on dedicated pulse-generation hardware for many characterization tasks.

Function Generators Market Scope