ICL7107--the integrated control module circuit

Published:2011/6/23 10:50:00 Author:qqtang | Keyword: integrated control, module circuit | From:SeekIC

ICL7107 is a widely used integrated circuits. It contains a 3 1/2 bit digital A/D converter, which can directly drive LED digit pipes, and in it there sets the reference voltage, independent analog switch, logic control, display drive, auto reset functions and so on. Here, we introduce a type of its application circuit production--the digit voltmeter, and its circuit is in the figure. When we manufacture it, we choose the common positive digit pipes as the display, the multiple turn resistor as the 2K adjustable resistor and the metal film resistor with little difference as the divider resistor.



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