CIRCUIT FOR DRIVING SENSE-AMPLIFIER

摘要

PURPOSE: A circuit for driving a sense-amplifier is provided to prevent an over-drive within a refresh operation so that operation current is reduced. CONSTITUTION: The device includes a sense amplifier(100), a sense-amplifying driver(200) and a control signal generator(300). The sense amplifier(100) amplifies data which are loaded on a bit line(BL) and a bit-bar line(BLB). The sense-amplifying driver(200) applies an over-drive voltage(VDDCLP) and an internal voltage(VDL) to the sense amplifier(100). According to an enable-bar signal(SAENB) for sense amplifying and a refresh enable signal(REFEN), the control signal generator(300) generates a first P-MOS(Metal Oxide Semiconductor) control signal(SAP1), a second P-MOS control signal(SAP2) and an N-MOS control signal(SAN) to control the sense-amplifying driver(200).