High speed readout circuit
AssigneeFuji Xerox Co., Ltd.
InventorsJinshu Son, Nobuaki Miyakawa
Life of this patent
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Abstract
The high speed readout circuit has an amplifier unit and an operating point setting unit and reads data from a memory sense line at high speed. The circuit further includes a unit for setting an operating point of the amplifier unit by short-circuiting the input and output terminals of the amplifier in response to a first control signal and precharging the sense line up to the operating point, and a unit for setting the sense line at a voltage slightly deviating the operating point in response to a second control signal by making use of a Miller capacitance and sensing the variations from the preset voltage during a reading process.
Claims5
A high speed readout circuit for reading out data of a memory unit, comprising:
- an amplifier unit having an input terminal and an output terminal for sensing variations from a preset voltage on a sense line so as to read out stored data;
- and
- an operating point setting unit for setting an operating point of said amplifier by short-circuiting the input and output terminals of said amplifier unit and for precharging said sense line to said operating point in response to a first signal, said operating point setting unit including capacitor means for setting the voltage on said sense line to a value having a predetermined slight deviation from said operating point in response to a second signal.
Dependencies are inferred from the claim text.