CIRCUIT FOR MEASURING VOLTAGE DROP, SEMICONDUCTOR DEVICE AND SYSTEM HAVING THE SAME, AND METHOD OF MEASURING THE VOLTAGE DROP

摘要

A circuit for measuring a voltage drop, a semiconductor device and system including the same, and a method for measuring a voltage drop are provided to detect a voltage drop of a power voltage by detecting a voltage drop after comparing a sensed voltage with a reference voltage. A circuit for measuring a voltage drop includes a sensing circuit and a voltage drop detection circuit(120). The sensing circuit senses a voltage drop due to a resistance of a power line, and generates a sensing voltage. The voltage drop detection circuit detects a voltage drop by comparing the sensing voltage with a reference voltage, generates a detection signal, and includes a reference voltage generating circuit(121) and a comparison circuit(122). The reference voltage generating circuit is coupled between a first power voltage and a ground voltage, and generates the reference voltage. The comparison circuit generates the detection signal by comparing the sensing voltage and the reference voltage.