Robust sensing circuit and method

Details Robust sensing circuit and method Robust sensing circuit and method

2011-07-05

2011-07-05

Nguyen, Dang T (Department: 2824)

Static information storage and retrieval

Floating gate

Particular biasing

C365S185250, C365S189050

Reexamination Certificate

active

07974133

ABSTRACT:
A sense amplifier is disclosed. One embodiment is a sensing circuit that includes a sensing device and a sense transistor coupled to the sensing device. A first switch that is coupled to the sense transistor and to the sensing device causes the sensing device to be charged to a first voltage that is a function of the threshold voltage of the sense transistor. One or more second switches that are coupled to the sensing device and to a target element. The second switches couple the sensing device to the target element to modify the first voltage on the sensing device and decouple the target element from the sensing device during a sense phase in which the modified first voltage is applied to the sense transistor. A condition of the target element is determined based on whether or not the sense transistor turns on in response to applying the modified first voltage to the sense transistor.

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International Search Report and Written Opinion, International Application No. PCT/US2009/069703.

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