GW INSTEK – AFG-303x Series

GW Instek rolls out the new AFG-3000 series arbitrary function generators, including 20MHz/30MHz single channel and dual channel models, designed to meet industry, scientific research, and education applications.

GW Instek rolls out the new AFG-3000 series arbitrary function generators, including 20MHz/30MHz single channel and dual channel models, designed to meet industry, scientific research, and education applications. In the design of isolated output, all output channels are earth ground isolation, which is suitable for test applications of floating circuit. For instance, connecting an AFG-3000 with a power supply’s DC voltage, the maximum AC-DC cascaded output reaches +42V or -42V. Each channel of dual channel models can be operated independently or multi units can simultaneously function without taking grounding reference into consideration. Applications are, for instance, the ignition control or transmission device of automotive electronics. The series features sample rate of 250MSa/s, 16-bit resolution, and 8M point memory depth for arbitrary waveform generation. Users not only can save the edited waveforms to the memory to build arbitrary waveforms, but also rebuild waveforms by the AFG-3000’s built-in DSOLink function with a GW Instek digital storage oscilloscope.

The AFG-3000 series supports synchronized phase for multi channel operation up to 6 units and 12 channels. A reference input connector is available allowing an external 10 MHz time base to synchronize the internal clock and elevate the frequency output accuracy. The series supports frequency sweep and amplitude sweep that can also integrate other functions, including linear/logarithm, one-way (saw tooth)/two-way (triangle), continuous/single trigger/gated trigger to meet various application requirements by applying different sweep methods. Frequency sweep tests the frequency response of electronic components such as filter and low frequency amplifier. Amplitude sweep simulates vibration tests (requires a vibration tester), and it also conducts aging tests of various materials and linearity tests of low frequency amplifier.

The main features of the AFG-3000 series include output amplitude from 1mVpp to 10Vpp (connected with a 50 ohm load); frequency range from 1uHz to 20MHz or 30MHz; 1uHz frequency resolution; and built-in sine, square, pulse, triangle, ramp, DC voltage, harmonic and noise. The waveform width, rise edge time and fall edge time of pulse waveform can be adjusted flexibly. Pulse waveform, with duty cycle from 0.017% to 99.983%, can be applied as trigger signals. Users can conduct arbitrary editing via 65 built-in function waveforms. The series supports AM/FM/PM/FSK/PWM modulation, frequency sweep, amplitude sweep and burst to satisfy industrial application requirements. Dual channel models provide SUM modulation, coupling, tracking, and phase to meet the test requirements of differential signal, phase control and amplifier distortion. Built-in 8th harmonic signal generator simulates harmonic signal of switching power supplies and it also tests EMI power filter characteristics. The AFG-3000 series provides free arbitrary waveform editing software (AWES) for users to quickly edit waveforms from the built-in diagrams so as to execute measurements.

Need more information?

Please contact +6221-5467618, +6221-54212399 or email [email protected]


  AFG-3031 AFG-3032 AFG-3021 AFG-3022
Channels 1 2 1 2
I/O signal ground for the instrument chassis Isolation
Connector shells for channel output(s), Sync output, 10MHz REF Input, Mod Input and Mod output are isolated from the instrument’s chassis. Maximum allowable voltage on isolated connector shells is ±42 Vpk. (DC + AC Peak)
Each of the signal ground of CH1 & CH2 Isolated Isolated
Standard Waveforms Sine, Square, Triangle, Ramp, Pulse, Noise, Harmonic
Arbitrary Waveforms  
Sample Rate 250 MSa/s
Repetition Rate 125MHz
Waveform Length 8M points
Amplitude Resolution 16 bits
Non-Volatile Memory Ten 8M waveforms (1)
User define Output Section Any section from2to 8M points
Trigger External
Built-in Arbitrary Waveforms Sine, Square, Ramp, Sinc,Pulse, DC, Sin(x)/x, Exponential Rise, Exponential Fall, Negative Ramp, Absatan, Havercosine, Sinever, Abssin, Haversine, Stair_down, Abssinehalf, N_pulse, Stair_UD, Ampalt, Negramp, Stair_up, Attalt, Rectpuls1, Stepresp, Diric_even, Roundhalf, Trapezia, Diric_odd, Sawtoot, Tripuls1, Gauspuls1, Sinetra, Dlorentz, ln, Sqrt, Exporise, Lorentz, Xsquare, Expofall, Gauss, Since, Arccos, Arctan, Sech, Arccot, Arctanh, Sinh, Arccsc, Cosh, Tan, Arcsec, Cot, Tanh, Arcsin, Csc, Arcsinh, Sec, Barthannwin, Chebwin, Kaiser, Bartlett, Flattopwin, Triang, Blackman, Hamming, Tukeywin, Bohmanwin, Hann
Frequency Characteristics  
  Sine / Square 1uHz to 30MHz 1uHz to 20MHz
Pulse 1uHz to 25MHz 1uHz to 20MHz
Triangle / Ramp 1uHz to 1MHz
Resolution 1uHz
Accuracy Stability ±1 ppm 0 to 50℃
±0.3 ppm 18 to 28℃
Aging ±1 ppm, per 1 year
Tolerance ≦ 1 uHz
Output Characteristics (2)  
Amplitude Range 1 mVpp to 10 Vpp (into 50Ω)

2 mVpp to 20 Vpp (into open-circuit)

Accuracy ± 1% of setting ±1 mVpp
(at 1 kHz / into 50Ω without DC offset)
Resolution 0.1 mV or 4 digits
Flatness 0.1dB <10 MHz   
0.2 dB 10 MHz to 30 MHz 
(sinewave relative to 1 kHz/into 50Ω)
Units Vpp, Vrms, dBm,
Offset Range ±5 Vpk ac +dc (into 50Ω)
±10Vpk ac +dc (into open circuit)
Accuracy 1% of setting + 2 mV+ 0.5% of amplitude
Waveform Output Impedance 50Ω typical (fixed)
> 10MΩ (output disabled)
Protection Short-circuit protected
Overload relay automatically disables main output
SYNC Output Level TTL-compatible into>1kΩ TTL-compatible into>1kΩ
Impedance 50Ω nominal
Sine wave Characteristics  
Harmonic Distortion(5) –60 dBc   DC~1 MHz, Ampl<3 Vpp
–55 dBc   DC~1 MHz, Ampl>3 Vpp
–45 dBc   1MHz~5 MHz, Ampl>3 Vpp
–30 dBc   5MHz~30 MHz, Ampl>3 Vpp
Total Harmonic Distortion < 0.2%+0.1mVrms
DC to 20 kHz
Spurious (non-harmonic)(5) –60 dBc  DC~1 MHz
–50 dBc  1MHz~20MHz
–50 dBc+ 6 dBc/octave  1MHz~30MHz (AFG-3031/3032)
Phase Noise <-110dBc/Hz typical,15 kHz offset, fc = 10MHz,
Square wave Characteristics  
Rise/Fall Time <8 ns (3)
Overshoot < 5%
Asymmetry 1% of period+1 ns
Variable Duty Cycle 20.0% to 80.0%,≦ 25 MHz   
40.0% to 60.0%,25 to 30MHz  
20.0% to 80.0% , ≦ 20 MHz 
Jitter 0.01%+525ps  < 2 MHz
0.1%+75ps  > 2 MHz
Ramp Characteristics  
Linearity < 0.1% of peak output
Variable Symmetry 0% to 100% (0.1% resolution)
Pulse Characteristics  
Pulse Width 20ns to 999,830s
Period ≧ Width-0.625 [(Rise Time-0.6ns)+(Fall Time-0.6ns)]
Duty setting range 0.017% to 99.983%
Period 40ns to 1,000,000s
Rise Time and Fall Time 9.32 ns to 799,900s (0.01ns or 3 digit resolution)
Resolution 0.0001%
Overshoot <5%
Jitter 50ps typical (<10kHz)
Harmonic order ≦8
Harmonic Type Even, Odd, All, User

Amplitude and Phase can be set for all harmonics

Carrier Waveforms Sine, Square, Triangle, Ramp, Pulse, Arb
Modulating Waveforms Sine, Square, Triangle, Up/Dn Ramp
Modulating Frequency 2 mHz to 20 kHz
Depth 0% to 120.0%
Source Internal / External
Carrier Waveforms Sine, Square, Triangle, Ramp
Modulating Waveforms Sine, Square, Triangle, Up/Dn Ramp
Modulating Frequency 2 mHz to 20 kHz
Peak Deviation DC to 30 MHz

(1uHz resolution)

DC to 20 MHz

(1uHz resolution)

Source Internal / External
Carrier Waveforms Sine, Triangle, Ramp
Modulating Waveforms Sine, Square, Triangle, Up/Dn Ramp
Phase Deviation 0° to 360°, 0.1° resolution
Modulating Frequency 2 mHz to 20 kHz
Source Internal
Carrier Waveforms Square
Modulating Waveforms Sine, Square, Triangle, Up/Dn Ramp
Modulating Frequency 2 mHz to 20 kHz
Deviation 0% ~ 100.0% of pulse width, 0.1% resolution
Source Internal / External
Additive modulation (Sum)  
Carrier Waveforms Sine, Triangle, Ramp, Pulse, Noise
Modulating Waveforms Sine, Square, Triangle, Up/Dn Ramp
Ratio 0% to 100% of carrier amplitude, 0.01% resolution
Modulating Frequency 2 mHz to 20 kHz
Source Internal / External
Carrier Waveforms Sine, Square, Triangle, Ramp
Modulating Waveforms 50% duty cycle square
Internal Rate 2 mHz to 1 MHz
FrequencyRange DC to 30 MHz DC to 30MHz DC to 20MHz DC to 20MHz
Source Internal / External
Waveforms Frequency Sweep: Sine, Square, Triangle, Ramp

Amplitude Sweep: Sine, Square, Triangle, Ramp, Pulse, Noise, ARB

Type Frequency, Amplitude
Functions Linear or Logarithmic
Direction Up or Down
Start F / Stop FREQ Any frequency within the waveform’s range
Sweep Time 1 ms to 500 s (1 ms resolution)
Trigger Mode Single, External, Internal
Trigger Source Internal / External
Waveforms Sine, Square, Triangle, Ramp, Pulse, Noise
Frequency 1 uHz to 30 MHz (4) 1uHz to 20MHz
Burst Count 1 to 1,000,000 cycles or Infinite
Start / Stop Phase  -360.0∘to +360.0∘ (0.1° resolution)
Internal Period 1 us to 500 s
Gate Source External Trigger (pulse waveforms can only be used in gate mode)
Trigger Source Single, External or Internal Rate
Trigger Delay N-Cycle, Infinite: 0us to 100s (1us resolution)
External Modulation Input  
Type AM, FM, PWM, Sum
VoltageRange ± 5V full scale
Input Impedance 10kΩ
Frequency DC to 20 kHz
Modulation Output AFG-3031/3021 only
Type AM, FM, PM, PWM, SUM, Sweep
AmplitudeRange ≧ 1Vpp
Impedance > 10kΩ typical
External Trigger Input  
Type For FSK, Burst, Sweep, N Cycle ARB
Input Level TTL Compatibility
Slope Rising or Falling (Selectable)
Pulse Width > 100 ns
Input rate DC to 1 MHz
Input Impedance 10kΩ,DC coupled
Latency Sweep < 10 us (typical)
Burst < 100 ns (typical)
Jitter Sweep 2.5 us
Burst 1 ns; except pulse,300 ps
10MHz Reference Output  
Output voltage 1 Vp-p / 50 Ω square wave
Output Impedance 50 Ω, AC coupled
Output Frequency 10MHz
10MHz Reference Input  
Input Voltage 0.5Vpp to 5Vpp
Input Impedance 1k Ω, unbalanced, AC coupled
Input Frequency 10MHz ± 10Hz
Waveform Sine or Square (50±5% duty)
Ground Isolation 42Vpk max.
Phase Delay (max.) Series Connection: 39+(N-2)*39  ±25nS

Parallel connection: (N-1)*6  ±25nS

(where N=number of connected units)

Maximum number of connected units Series Connection: 4

Parallel Connection: 6

Applicable Functions Sine, Square, Triangle, Pulse, Ramp, Harmonic, MOD, Sweep, Burst
Store/Recall 10 Groups of Setting Memories
Interface GPIB(Optional), LAN, USB
Display 4.3 inch TFT LCD, 480 × 3 (RGB) × 272
General Specifications  
Power Source  AC 100~240V , 50~60Hz
Power Consumption 50VA 85VA 50VA 85VA
Operating Environment Temperature to satisfy the specification :  18 ~ 28∘C
Operating temperature : 0 ~ 40∘C
Relative Humidity: 
≤ 80%, 0 ~ 40°C
≤ 70%, 35 ~ 40°C
Installation category: CAT Ⅱ
Operating Altitude 2000 meters
Pollution Degree IEC 61010 Degree 2, Indoor Use
Storage Temperature  -10 ~ 70∘C, Humidity: ≤70%
Dimensions (WxHxD) Bench Top : 265 (W) x 107 (H) x 374 (D)
Weight Approx. 4kg
Safety Designed to EN61010-1
EMC Tested to IEC-61326, EN 55011
Accessories Test cable(GTL-110×1 for AFG-3031/AFG-3021, GTL-110×2 for AFG-3032/AFG-3022), User Manual Compact Disk × 1, Quick Start Guide × 1, Power cord × 1
(1). A total of ten waveforms can be stored. (Every waveform can composed of 8M points maximum.)
(2). Add 1/10th of output amplitude and offset specification per ∘C for operation outside of 0∘C to 28∘C range (1-year specification).
(3). Edge time decreased at higher frequency.
(4). Sine and square waveforms above 25 MHz are allowed only with an “Infinite” count.
(5). Harmonic distortion and Spurious noise at low amplitudes is limited by a -70 dBm floor.