FIELD: computer technology.
SUBSTANCE: reading amplifier includes: an amplifier module configured to amplify the voltage difference between the bit line and the reference bit line when the reading amplifier is in the amplification phase, and an adjustable power supply connected to the amplifier module and configured to determine control parameters in accordance with the range of the nominal compensation voltage between the bit line and the reference bit line, and supplying power to the amplifier module in accordance with the control parameters to control the offset of the compensation voltage between the bit line and the reference bit line of the amplifier module in the offset compensation phase to the rated compensation voltage, wherein the rated compensation voltage is within the specified range of rated compensation voltage.
EFFECT: accuracy of data reading.
14 cl, 8 dwg, 2 tbl
