Patent ID: 9627011
Date: 2017-04-18
CPC Classifications: G11C,H03F

Claim:
1. A method for operating a non-volatile memory device using a sense amplifier that includes a first branch and a second branch, the method comprising: during a pre-charging step, biasing a bit line of a memory array of the non-volatile memory device in order to pre-charge the bit line, wherein a memory cell with data to be read is coupled to the bit line; during the pre-charging step, detecting and storing an offset between the first branch and the second branch; during a reading step subsequent to the pre-charging step, receiving a cell current from the bit line at the first branch and a reference current from a current-reference structure at the second branch; during the reading step, generating an amplified voltage as a function of the cell current and the reference current; and during the reading step, generating an output voltage based on the amplified voltage compensated by the offset stored during the pre-charging step.