Comparator basics — Evaluate: “A comparator outputs a logic HIGH or LOW strictly based on which input voltage is greater.”

Introduction / Context: Comparators are threshold devices that decide which of two analog voltages is larger. They form the basis of zero-crossing detectors, window comparators, and many ADC architectures. The essence is binary: one of two logic states is produced according to the sign of V_plus − V_minus.Given Data / Assumptions:

• Comparator has two inputs, often labeled non-inverting (+) and inverting (−).
• Outputs saturate near logic rails or defined logic levels via a separate interface.
• No intentional hysteresis unless added (some parts integrate it).

Concept / Approach: The comparator evaluates the instantaneous difference between inputs. If V_plus > V_minus, output drives HIGH; if V_plus < V_minus, output drives LOW (or vice versa depending on output polarity). Adding positive feedback turns it into a Schmitt comparator with hysteresis but the fundamental decision remains a simple magnitude comparison.Step-by-Step Solution:

Verification / Alternative check:

Why Other Options Are Wrong:

Common Pitfalls:

Final Answer: