Using Op Amps as ComparatorsAN-849 APPLICATION NOTE
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Using Op Amps as Comparators
by James Bryant
INTRODUCTION
A comparator is a device with two input terminals, inverting and noninverting, and an output that usually swings from rail to rail. So is an op amp.
V+ V+
But it is tempting to use op amps as comparators for a number of reasons. The remainder of this document summarizes the reasons and warns of possible unexpected consequences of using an op amp as a comparator.
WHY USE AN OP AMP AS A COMPARATOR?
06125-001
Convenience Economy Low IB
B
V……
