Sense amplifier for reduced sense delay in low power mode

Details Sense amplifier for reduced sense delay in low power mode Sense amplifier for reduced sense delay in low power mode

2006-09-19

2006-09-19

Elms, Richard (Department: 2824)

Static information storage and retrieval

Read/write circuit

Differential sensing

C365S149000, C365S189050, C365S189060

Reexamination Certificate

active

07110311

ABSTRACT:
A sense amplifier has a charge sharing compensator to eliminate wake-up delays in an output signal. The charge sharing compensator comprises a capacitor or a charge storing means to compensate for charges in a charge sharing path that has two different voltage potentials. The compensator also has a transistor for selecting a signal path to transfer charges from the capacitor, eliminating charge sharing in the bit line path of the sense amplifier. Another aspect of the present invention is a method for resolving charge sharing problems that comprises steps of choosing a proper value for a compensating capacitor, choosing a control signal for a charge sharing compensation means, and clamping down an input terminal of the sense amplifier.

REFERENCES:
patent: 4951252 (1990-08-01), White et al.
patent: 5815452 (1998-09-01), Shen
patent: 6137741 (2000-10-01), Liu
patent: 6473356 (2002-10-01), Raszka
patent: 6518798 (2003-02-01), Telecco
patent: 6535025 (2003-03-01), Terzioglu et al.
patent: 6700415 (2004-03-01), Telecco
patent: 6912167 (2005-06-01), Tam
patent: 2003/0035334 (2003-02-01), Terzioglu et al.

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