Article
Article
Comparator
Article By:
Glasford, Glenn M. Department of Electrical and Computer Engineering, Syracuse University, Syracuse, New York.
Last reviewed:January 2020
DOI:https://doi.org/10.1036/1097-8542.152400
An electronic circuit that produces an output voltage or current whenever two input levels simultaneously satisfy predetermined amplitude requirements. A comparator circuit may be designed to respond to continuously varying (analog) or discrete (digital) signals, and its output may be in the form of signaling pulses which occur at the comparison point or in the form of discrete direct-current (dc) levels.
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