Instek SFG-830 30MHz Arbitrary/Function Generator

Instek SFG-830 30MHz Arbitrary/Function Generator
Manufacturer: Instek
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New Instek SFG-830 30MHz Arbitrary/Function Generator


Instek SFG-830 30 MHz Arbitrary/Function Generator

with two year warranty

GPIB option available for $200 extra

   The Instek SFG-830 is a functional signal generator that applies DDS (Direct Digital Synthesis) technique and can generate frequencies at a resolution of 20mHz, with a high frequency accuracy of 10ppm. Its main signal source can generate waveforms of sine wave, square wave, triangle wave, ramp wave, and arbitrary waves. The Instek SFG-830 30MHz Arbitrary Function Generator is one of the most versatile and highly qualitative signal generators utilizing DDS techniques. It not only offers standard generator functions but also provides accurate modulation, sweep, and arbitrary waveform generation. The free editing software allows you to obtain, edit, or create frequency and amplitude characteristics through the GPIB interface. The SFG-830 is ideally suited to create arbitrary waveforms for a variety of different applications.


  • 20mHz Frequency Resolution
  • 30MHz Direct Digitally Synthesized Source
  • 10ppm Frequency Accuracy
  • 12 Bit, 5M Sample/S Arbitrary Waveforms
  • Internally Synthesized FM , AM and Phase Modulation (PSK)
  • Arbitrary Modulation
  • Linear and log Sweeps
  • Standard Interface : RS-232C
  • Optional IEEE-488 Interface only for SFG-830G


  • Frequency Range Sine 20mHz ~ 30MHz  Square 20mHz ~ 30MHz Triangle 10mHz ~ 100kHz Ramp 10mHz ~ 100kHz

Amplitude Range 10mV ~ 10Vp-p ( into 50 ohms ) 8 amplitude ranges, | Vac peak | + | Vdc | < 5V
Resolution 3 digits
Accuracy Sine out: ±0.5dB (±5mVrms) Square out: ±12% (±5mVrms) ,Triangle out: ±5% (±5mVrms) , Arbitrary out: ±5% (±5mVrms)

DC offset Range ± 5V ( into 50 ohms ), | Vac peak | + | Vdc | < 5V
Resolution 3 digits
Accuracy ± 1.5% of setting + 1mV

Sync Output Sync Output TTL levels
Sync Fan-out > 10 TTL load
Sine Output Harmonics DC ~ 100kHz : -50dBc , 0.1M ~ 1MHz : -40dBc 1M ~ 10MHz : -30dBc , 10M ~ 30MHz : -25dBc

Square Output Rise / Fall Time <15nS
Overshoot < 5% ( at full scale output )
Asymmetry ± 1% of period + 4nS

Triangle and Ramp Linearity ± 0.1% of full scale output

Arbitrary Waveforms Sample Rate 42.949600MHz/N, N=8, 10, 12, ... 215
Waveform Length 12,000 points max.
Vertical Resolution 12 bits

Sweep Sweep Functions LIN or LOG
Sweep Range 20mHz ~ 30MHz
Sweep Time 0.01S ~ 21S

Modulation AM Modulation Function External, Internal ( sine, triangle, ramp, square )
Modulation Rate 10mHz ~ 10kHz ( Internal ), 50kHz max ( external )
Modulation Span 0 ~ 100%

Ext. Input ± 5V for 100% modulation
Ext. Input Impedance 100kohm

FM Modulation Function Sine, Triangle, Ramp, Square
Modulation Rate 10mHz ~ 10kHz
Modulation Span 30MHz ( 100kHz for triangle, ramp )
PM Modulation Span 360 Degrees
Modulation Rate 20mHz ~ 10kHz