SCHMITT TRIGER CIRCUIT OPERATED ACCORDING TO PULSE WIDTH

摘要

PURPOSE: A Schmitt trigger circuit for operating according to a pulse length is provided to reduce sensitivity by broadening a pulse length showing the size of an analog signal. CONSTITUTION: A Schmitt trigger circuit includes a signal/pulse conversion part(11) changing an analog signal into a pulse. The Schmitt trigger circuit includes a pulse length determining part(12) determining the size of a pulse length which is outputted from the signal/pulse conversion part. The Schmitt trigger circuit includes an output determining part(13) determining a final output according to the size of a pulse length which is determined in the pulse length determining part. The signal/pulse conversion part generates the input pulse having a width corresponded to the size of an analog signal. The analog signal inputted to the signal/pulse conversion part is a differential signal including a first analog signal and a second analog signal.