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US 5,668,765 AGranted
Charge transfer sense amplifier
AssigneePhilips Electronics North America Corporation
InventorMichael Anthony Ang
Life of this patent
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Abstract
An electronic memory has a voltage sense amplifier coupled to a memory cell via a bit line for supply of an output signal under control of data stored in the cell. The sense amplifier is both powered and controlled by redistribution of electric charge, representative of the data and initially accumulated at the bit line, between the bit line and the output of the sense amplifier.
Claims10
An electronic circuit with a memory that has:
- a memory cell for storing data;
- a bit line selectively connected to the cell;
- a voltage sense amplifier having an input selectively connected to the bit line for sensing a bit line voltage representative of the data, and an output for providing an output signal representative of the data, wherein:
- the voltage sense amplifier is powered by the bit line voltage through transfer of electric charge from the bit line to the voltage sense amplifier,
- the output supplies the output signal created from the charge being redistributed between the bit line and the output of the voltage sense amplifier, and
- the sense amplifier has means for precharging the output so that the output is electrically connected to the bit line when the sense amplifier starts sensing.
3 more elements
Dependencies are inferred from the claim text.