Tri_level_comparator

Published:2009/7/17 4:01:00 Author:Jessie | From:SeekIC

This circuit uses all three sections of a CA3060 to form a tri-level comparator, which has three adjustable limits. If either the upper or lower limit is exceeded, the appropriate output is activated until the input signal returns to a selected intermediate value. Such comparators are used in industrial control applications. The lower and upper limits are set by R 1 and R2, respectively. R3 and R4 set the intermediate limit. When both R3 and R4 are the same value, the intermediate limit is midway between the upper and lower limits. The loads shown are 5-V 25-mA lamps. Harris Semiconductor Linear & Telecom ICs 1991 p 3-51



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