Ferroelectric memory and method for reading the same

摘要

A ferroelectric memory device and method for reading such a device utilize capacitive coupling between a bit line and sense amplifier. The gain depends on a capacitance ratio rather than the absolute value of a capacitor. Ratiometric gain control reduces the gain variability of a sense amplifier, thereby allowing more accurate sensing. Attenuating the signal from an active bit line eliminates the need for high voltage devices in a sense amplifier arrangement.