25_Hz_TO_250_kHz_SQUARE_TRIANGLE

Published:2009/7/7 1:57:00 Author:May | From:SeekIC

Five switched frequency ranges each give continuous variation of frequency over one decade and adjustment of output amplitude from 0.2 to 20 V P-P. Slope of triangle is highly linear, and rise time of square wave is less than 100 ns. Squarewave generator is simple hysteresis circuit triggered by triangle generator. Output voltage is clamped to desired level by diodes connected to bandwidth control point. Output opamp is selected for high slew rate. S3 gives choice of 1 or 10 for gain. Maximum output current should be limited to 2O mA.- Linear & Data Acquisition Products, Harris Semiconductor, Melboume, FL, Vol. 1,1977, p 7-25 (Application Note 510).



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