Static information storage and retrieval – Read/write circuit – Differential sensing
Reexamination Certificate
2007-06-26
2008-10-07
Phan, Trong (Department: 2827)
Static information storage and retrieval
Read/write circuit
Differential sensing
C365S210130, C365S158000, C327S053000
Reexamination Certificate
active
07433253
ABSTRACT:
An integrated circuit has a current sense amplifier that includes a voltage comparator having a first input, a second input and an output; a first clamping device coupled between the first input of the voltage comparator and a first input signal node, a second clamping device coupled between the second input of the voltage comparator and a second input signal node, a current mirror having a first side and a second side, the current mirror first side including a first transistor coupled between a voltage source and the first clamping device and the current mirror second side including a second transistor coupled between the voltage source and the second clamping device, and a sensing scheme including an actively balanced capacitance coupled to the source and drain of the second transistor.
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Gogl Dietmar
Viehmann Hans-Heinrich
Phan Trong
Qimonda AG
Slater & Matsil L.L.P.
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