Patent ID: 6538476
Filing Date: 2003-03-25
Classification: G11C,H03F,H03K

Abstract:
A method of forming a current sense amplifier, comprising:forming a first amplifier and a second amplifier, wherein forming each amplifier includes: forming a first transistor of a first conductivity type; and forming a second transistor of a second conductivity type, wherein the first and second transistors are coupled at a drain region; coupling a signal input node to a source region of the first transistor of the first amplifier; coupling a first signal output node to the drain region of the first and the second transistors in the second amplifier; coupling the first signal output node to a gate region of a third transistor, wherein the third transistor is a p-channel metal oxide semiconductor (PMOS) transistor; coupling a source region of the third transistor to a source region of the second transistor of the first amplifier, and coupling a drain region of the third transistor to the signal input node; coupling a second signal output node to the drain region of the first and the second transistors in the first amplifier; and coupling the second signal output node to a gate region of a fourth transistor.