Resistive non-volatile memory and a method for sensing a memory cell in a resistive non-volatile memory

摘要

A semiconductor device includes an array of memory cells, and a reference voltage generation circuit including a first set of reference memory cells coupled to a first bit line, a second set of reference memory cells coupled to a second bit line, a first capacitor having a first terminal coupled to the first bit line, and a second terminal, a second capacitor having a first terminal coupled to the second terminal of the first capacitor at a first node and a second terminal coupled to the second bit line, an amplifier including a first input selectively coupled to the first node and a second input coupled to an output of the amplifier that provides reference voltage used by sense amplifiers, and a third capacitor including a first terminal coupled to the output of the amplifier and a second terminal coupled to a first supply voltage.