ICL8038 - MIT
ICL8038 . Semiconductor September 1998 File Number Precision Waveform Generator/Voltage Features Controlled Oscillator Low Frequency Drift with Temperature . . . . . . .250ppm/oC. The ICL8038 waveform generator is a monolithic integrated Low Distortion. . . . . . . . . . . . . . . . 1% (Sine Wave Output). circuit capable of producing high accuracy sine, square, High Linearity . . . . . . . . . . . (Triangle Wave Output). triangular, sawtooth and pulse waveforms with a minimum of external components. The frequency (or repetition rate) can Wide Frequency Range . . . . . . . . . . . to 300kHz be selected externally from to more than 300kHz Variable Duty Cycle.
that the flip-flop is in a state such that current source #2 is off, and the capacitor is charged with a current I, the voltage across the capacitor rises linearly with time. When this voltage reaches the level of comparator #1 (set at 2/3 of the supply voltage), the flip-flop is triggered, changes states, and releases current source #2.
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