Patent ID: 8411490
Filing Date: 2013-04-02
Classification: G11C

Abstract:
1. A sense amplifier comprising: a first inverter having a first p-channel transistor and a first n-channel transistor; a second inverter having a second p-channel transistor and second n-channel transistor, wherein gates of said second transistors are connected to drains of said first transistors, and drains of said second transistors are connected to gates of said first transistors, wherein a source of said first n-channel transistor is connected to a bitline, and a source of said second n-channel transistor is connected to a complement bitline; and a transmission gate for equalizing said first and second inverters to a predetermined voltage before performing a sense operation, wherein said transmission gate is connected to said gates of said first and second transistors, wherein said transmission gate is formed by a p-channel transistor having its gate connected to an enable signal and an n-channel transistor having its gate connected to a complement enable signal; a third transistor connected between a source of said first n-channel transistor and ground, and a fourth transistor connected between a source of said second n-channel transistor and ground, wherein gates of said third and fourth transistors are connected to a gate of said p-channel transistor of said transmission gate.