Fiddler’s Thinkings In principle, the XR-2206 chip itself is a monolithic function generator integrated circuit capable of producing high quality sine, square, triangle, ramp, and pulse waveforms of ...

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“A function generator is a very useful tool, especially when we are considering testing our circuit’s response to a certain signal.” Explains its creator and Instructables member Faransky.

If you have a modern function generator on your bench it is quite likely to contain a direct-digital synthesis circuit that creates arbitrary waveforms using a microprocessor controlled DAC. If ...

Fig 1. The curve tracer circuit is a simple transimpedance amplifier that converts the device test's IDS into an output voltage. Figure 2 is an oscillo scope screenshot of a transfer curve being ...

The actual circuit of the generator is built with three LM386 ICs. It produces two frequencies, selectable via double-pole double-throw (DPDT) switch S1 (Fig. 2).

The circuit inside uses a MAX038 high-frequency generator chip. This is a full-featured part that allows for great control based on a few external components.