Patent ID: 6307405
Filing Date: 2001-10-23
Classification: G11C,H03F,H03K

Abstract:
A current sense amplifier, comprising:a first amplifier and a second amplifier, wherein each amplifier comprises:a first transistor of a first conductivity type;a second transistor of a second conductivity type, wherein the first and second transistors are coupled at a drain region; anda signal input node coupled to a source region of the first transistor; anda signal output node coupled to the drain region of the first and the second transistors in the second amplifier, and wherein the signal output node is further coupled to a gate of a third transistor wherein a source region of the third transistor is coupled directly to a source region of the second transistor in the first amplifier and a drain region of the third transistor is coupled to the signal input node in at least one of the first and the second amplifiers.