Comparators could be confused with operational amplifiers but they are designed for specific tasks. We explore the differences, applications and more in this video.
This is “hands on electronics” series from Accidental Science.
Many times it is necessary to detect voltage levels against a reference voltage. While OPAMPs can be used for this purpose, exploiting their high gain, performances are poor and the applications are limited where a slow response is acceptable.
Comparators are specifically designed for this application, enhancing their speed versus their linearity, as their output swings between just to levels: high and low.
Comparators are the ideal interface from the analog world to digital.
But some care in the layout design must be taken, particularly with fast comparators.
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