C-mos differential sense amplifier

Details C-mos differential sense amplifier C-mos differential sense amplifier

H - Electricity

03

K

328/84, 328/88

H03K 19/0175 (2006.01) G11C 7/06 (2006.01) H03K 6/02 (2006.01)

Patent

CA 2033020

A C-MOS sense amplifier detects voltage differences between the signals applied to its inputs in correspondence with transitions of a clock signal. It comprises a level converter, a sense circuit and a feedback circuit, which are inactive in a first inactive phase of the clock signal, while in a second active phase, immediately following a clock signal transition, the sense amplifier reaches an operating point necessary to activate the level converter and the sense circuit, and hence a high positive feedback is set up which switches the sense circuit. Finally, following the corresponding level transition of a delayed clock signal, the feedback signal generated by the feedback block reduces the dissipation of the entire differential sense amplifier to zero.

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