Signal / frequency / function generator 0.1Hz-200kHz (sine, square, and triangle)
A simple (fully analog) frequency generator can be finished using a 4 x op-amp (LMH6644), 6 transistors and a few passive components. The symmetrical power supply ( /-5-12V) using either a transformer or a charge pump. (The circuit can be a discreet substitute for MAX038...
