Patent ID: 7710782
Filing Date: 2010-05-04
Classification: G11C

Abstract:
1. A sense amplifier for sensing data stored in a first memory cell and a second memory cell of a memory, the sense amplifier comprising: a reference level setting circuit for setting a reference voltage according to reference data; a comparator circuit for comparing a sensing voltage with the reference voltage to correspondingly generate an output voltage; a first level setting circuit for setting a first voltage according to a first bit-line voltage corresponding to the first memory cell in response to a first clock signal; a second level setting circuit for setting a second voltage according to a second bit-line voltage corresponding to the second memory cell in response to a second clock signal whose phase is different from the first clock signal; and a switch circuit for providing the first voltage as the sensing voltage in response to the first clock signal and providing the second voltage as the sensing voltage in response to the second clock signal, respectively.