CIRCUIT FOR DRIVING BITLINE SENSE AMPLIFIER OF SEMICONDUCTOR MEMORY DEVICE AND METHOD OF OPERATING DRIVER FOR BITLINE SENSE AMPLIFIER

摘要

PURPOSE: A bit line sense amplifier driving circuit of a semiconductor memory device and a driving method of a bit line sense amplifier driving circuit are provided to reduce the peak current in a process of sensing a bit line by adjusting the size of a power driver according to an operating state. CONSTITUTION: A first sense amplifier driving circuit(210) drives a bit line sense amplifier. A second sense amplifier driving circuit(220) drives a bit line sense amplifier. All of the first sense driving circuits out of the first and second sense amplifier driving circuits operate in response to the operation state of a semiconductor memory device. The first and second sensing control circuits(230, 240) control the on/off state of the first sense amplifier driving circuit.