AFG-2000 Series
Signal SourcesGW Instek AFG-2000 / AFG-2100 arbitrary function generator, a 5, 12 or 25 MHz signal generator with 20 MSa/s sampling, 10-bit resolution, 4k-point arbitrary waveform memory and free PC waveform-editing software; AFG-2100 models add AM/FM/FSK modulation, sweep and a 150 MHz frequency counter. Available in India from GSAS Micro Systems with demonstrations, GST-compliant quotation and calibration support.
Max Frequency
5 / 12 / 25 MHz (sine, square)
Sample Rate
20 MSa/s
Resolution
10-bit vertical
Arb Memory
4k points (non-volatile)
Output Amplitude
1 mVpp–10 Vpp (50 Ω)
Modulation (AFG-2100)
AM, FM, FSK, sweep
Frequency Counter
5 Hz–150 MHz (AFG-2100)
Display / Interface
3.5-inch LCD, USB
Overview
About AFG-2000 Series
The GW Instek AFG-2000 / AFG-2100 Series is an entry-level arbitrary function generator that puts sine, square, ramp, pulse, noise and user-defined arbitrary waveforms on a single, easy-to-use bench instrument. With a 20 MSa/s sample rate, 10-bit vertical resolution and 4k points of non-volatile arbitrary-waveform memory, it serves as a versatile signal generator for R&D, education labs, production test and field service. A clear 3.5-inch LCD shows all key settings simultaneously, and free PC waveform-editing software lets you build custom stimulus patterns and download them over USB.
The family spans six models in three bandwidth grades. The base AFG-2000 series covers 5, 12 and 25 MHz (AFG-2005 / AFG-2012 / AFG-2025); the AFG-2100 series mirrors those bandwidths (AFG-2105 / AFG-2112 / AFG-2125) and adds AM/FM/FSK modulation, linear and logarithmic sweep, and a built-in 5 Hz–150 MHz frequency counter: so you can match both bandwidth and feature set to the job.

An arbitrary function generator with 20 MSa/s arbitrary waveforms
At the core of every AFG-2000 and AFG-2100 model is a direct-digital-synthesis engine that plays back arbitrary waveforms at a 20 MSa/s sample rate with 10-bit amplitude resolution and 4k points of non-volatile waveform length. Beyond the five standard functions, sine, square, ramp, noise and arbitrary, the instrument outputs 1 mVpp to 10 Vpp into 50 Ω (2 mVpp to 20 Vpp open-circuit) with a ±5 Vpk DC offset into 50 Ω, ±20 ppm frequency stability and a TTL-compatible SYNC output. Square-wave duty cycle is adjustable from 1% to 99% below 100 kHz, narrowing toward 50% as frequency rises, which supports PWM and digital timing work. The bundled PC waveform-editing software lets engineers design complex stimulus patterns on a computer and transfer them to the instrument over USB.
AFG-2000 / AFG-2100 series specifications
| Specification | AFG-2000 Series | AFG-2100 Series |
|---|---|---|
| Models | AFG-2005 / 2012 / 2025 | AFG-2105 / 2112 / 2125 |
| Max frequency (sine, square) | 5 / 12 / 25 MHz | 5 / 12 / 25 MHz |
| Ramp frequency | 0.1 Hz – 1 MHz | 0.1 Hz – 1 MHz |
| Frequency resolution | 0.1 Hz | 0.1 Hz |
| Stability / aging | ±20 ppm / ±1 ppm per year | same |
| Sample rate | 20 MSa/s | 20 MSa/s |
| Amplitude resolution | 10-bit | 10-bit |
| Arbitrary waveform memory | 4k points (non-volatile) | 4k points (non-volatile) |
| Output amplitude | 1 mVpp–10 Vpp (50 Ω) / 2 mVpp–20 Vpp (open) | same |
| DC offset | ±5 Vpk AC+DC (50 Ω) | same |
| Duty cycle | 1%–99% (≤100 kHz) | same |
| AM / FM / FSK modulation | - | Yes (internal / external) |
| Sweep | - | Linear / log, 1 ms – 500 s |
| Frequency counter | - | 5 Hz – 150 MHz |
| Store / recall | 10 setting memories | 10 setting memories |
| Display | 3.5-inch LCD | 3.5-inch LCD |
| Interface | USB (Device) | USB (Device) |
| Power | AC 100–240 V, 50/60 Hz, 25 VA | same |
| Dimensions / weight | 266 × 107 × 293 mm / approx. 2.5 kg | same |
The AFG-2000 / AFG-2100 model lineup
| Model | Max frequency | Modulation / sweep | Frequency counter |
|---|---|---|---|
| AFG-2125 | 25 MHz | AM, FM, FSK, sweep | 5 Hz – 150 MHz |
| AFG-2112 | 12 MHz | AM, FM, FSK, sweep | 5 Hz – 150 MHz |
| AFG-2105 | 5 MHz | AM, FM, FSK, sweep | 5 Hz – 150 MHz |
| AFG-2025 | 25 MHz | - | - |
| AFG-2012 | 12 MHz | - | - |
| AFG-2005 | 5 MHz | - | - |
Maximum frequency applies to sine and square waveforms; ramp runs to 1 MHz across the range. The AFG-2100 models add modulation, sweep and the built-in counter at each bandwidth grade. GSAS helps you select the model whose bandwidth and feature set match your test requirement.
Modulation, sweep and frequency counter (AFG-2100)
The AFG-2100 models extend the platform from a basic waveform source into a more complete bench tool. AM and FM modulation accept internal or external modulating signals (2 mHz–20 kHz internal; DC–20 kHz external), with AM depth adjustable from 0% to 120%. FSK shifts between two frequencies at rates up to 100 kHz for digital-communication and protocol testing. Linear or logarithmic sweep runs from a start to stop frequency over 1 ms to 500 s, useful for filter and frequency-response characterisation. A built-in frequency counter measures 5 Hz to 150 MHz with ±20 ppm time-base accuracy, so a single instrument both generates and measures frequency on the bench.
Applications
The AFG-2000 / AFG-2100 series suits a broad range of bench and teaching tasks:
- Embedded and circuit prototyping: clock, trigger and stimulus signals for sensors, op-amps and digital logic.
- Filter and frequency-response testing: sweep (AFG-2100) characterises cutoff, passband and roll-off.
- PWM and digital timing: adjustable 1%–99% duty cycle drives motor-control and power-switching experiments.
- Communications and modulation labs: AM, FM and FSK (AFG-2100) for analog and digital modulation teaching and bring-up.
- Education and training: clear 3.5-inch display, simple operation and PC waveform editing make it a fit for university and technical-institute labs.
Function generator price in India: buy the AFG-2000 / AFG-2100 from GSAS Micro Systems
GSAS Micro Systems is an authorized GW Instek engineering partner in India. We supply the full AFG-2000 and AFG-2100 range, every bandwidth grade and feature set, with model-selection guidance, hands-on demonstrations, waveform-editing support, GST-compliant quotations, calibration with maintained traceability and post-sales application support. Engineering, education and production teams across Bengaluru, Hyderabad, Chennai, Pune, Mumbai and Delhi NCR rely on GSAS for fast access and local support. Contact GSAS or request a quote to get the function generator price in India and order with delivery nationwide.
Blog
GW Instek Insights
Emulating Processor Power for Thermal Testing: Why Constant Power
A heat sink or a cold plate is qualified against a watt figure, not a volt figure. This application note explains why a thermal load is driven in constant-power mode, how the bench is built for air and for liquid cooling, and what to confirm before you buy.
CRPS and Rack Power Supply Testing: The Six Tests That Matter
A CRPS module has to hold up under an unbalanced grid, a 0 to 100 percent load step, a surge on the line and a redundancy handover. This application note sets out the six tests, and the one source capability that makes a long feeder reproducible on the bench.
GPU Power Board Testing: DC Input Verification Before Integration
A GPU power delivery board is cheap to reject on a bench and expensive to find in an assembled server. This application note covers the programmable DC input test that screens the board, and the same test applied to incoming server systems.
Related products
More from GW Instek
All GW Instek products →
GSP-8800
8.8 GHz spectrum analyzer with EMC pre-compliance, tracking generator, and -165 dBm/Hz DANL. Authorized India partner, GSAS Micro Systems.
View GSP-8800 →
GSP-9330
GW Instek GSP-9330 spectrum analyzer, a 9 kHz to 3.25 GHz RF spectrum analyzer with 1 Hz minimum RBW, fast 204 µs sweep, built-in EMC pretest (quasi-peak/average detectors), AM/FM/ASK/FSK/2FSK demodulation and an optional tracking generator. Available in India from GSAS Micro Systems, an authorized GW Instek engineering partner, with INR pricing, GST invoicing, calibration and application support.
View GSP-9330 →
GSP-9300B
3 GHz spectrum analyzer with spectrogram, topographic display, and built-in preamplifier. Available in India from GSAS with hands-on application engineering and local support.
View GSP-9300B →FAQ
Common questions about AFG-2000 Series
How much does the AFG-2000 series cost in India?
What is the difference between the AFG-2000 and AFG-2100 series?
How many models are in the AFG-2000 / AFG-2100 series and what frequencies do they cover?
Is the AFG-2000 / AFG-2100 a true arbitrary function generator?
Does the AFG-2000 series support modulation, sweep and a frequency counter?
How do I buy the GW Instek AFG-2000 / AFG-2100 in India?
Interested in AFG-2000 Series?
Get pricing, an evaluation unit, or a technical consultation from our application engineers.