GW Instek AFG Function Generators - 5MHz/12MHz/25MHz - GW Instek AFG-2005, This AFG-2005 function generator from GW Instek is a DDS (Direct Digital Synthesized) based signal generator designed to accommodate the educational and basic industrial requirements for an accurate and affordable signal source covering the output of sine, square (pulse), ramp (triangle), noise and arbitrary waveforms. The 20MSa/s sampling rate, 10-bit vertical resolution and 4k point memory provide a flexible environment for creating the specific waveform output as needed. The 0.1Hz resolution of sine, square and triangle waveforms and the 1% to 99% adjustable duty cycle of square (pulse) waveform are the remarkable features which greatly extend its application range in various fields. The user friendly interface allows setting of waveform parameters, including waveform type, frequency, amplitude, DC offset, modulation type and duty cycle through keypad entry or using the Output Scroll Wheel control in conjunct