US Patent 7548476 Integrated circuit and method of operating such a circuit

An integrated circuit includes a bit line pair having two bit lines, a sense amplifier having at least one transistor, the sense amplifier amplifying a charge difference between the bit lines of the bit line pair; and a control unit connected to a substrate terminal of the at least one transistor, the control unit applying a substrate potential dependent on an operating state of the integrated circuit to the substrate of the at least one transistor.