Sense amplifiers are mainly used to read the contents of RAM, DRAM and CAM cells. They are very sensitive to noise and their design implies that they will provide adequate noise margins and provide good quality of data that represent the contents of a particular memory cell. There are two categories of sense amplifiers. The static sense amplifiers mainly used to detect logic in the static RAMs and CAMs and the dynamic sense amplifiers mainly used to save energy when low power dissipation is required.

This paper will describe the most popular sense amplifier widely used for the detection of logic in static RAMs and CAMs.