Norton_comparator_for_positive_input_voltages

Published:2009/7/17 4:43:00 Author:Jessie | From:SeekIC

This circuit uses one section of an LM3900 to form an inverting comparator. The reference voltage must be larger than VBE (typically 0.5 V), but there is no limit as long as the input resistor is large enough to guarantee that the input current does not exceed 200μA. National Semiconductor Linear Applications Handbook 1991, p 243.



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