Sense amplifier for flash memory array, has offset current source that increases input current to offset current at read-input node and decreases mirrored input current to offset current at result output node

摘要

The sense amplifier (100) has a read-input node (122) which receives input current, and a current mirror circuit (120) which is coupled to the read input node to generate mirrored input current. A result output node (106) is coupled with current mirror circuit and reference side switching circuit (104). An offset current source (134) is connected to the read-input node and result output node, for increasing the input current to an offset current at the read-input node and decreasing the mirrored input current to the offset current at the result output node. An independent claim is included for flash memory array.