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US 7,804,333 B2Granted
Input buffer circuit
AssigneeHynix Semiconductor Inc.
InventorMi Hye Kim
Life of this patent
Estimating the term…
Abstract
An input buffer circuit is disclosed. The input buffer circuit includes a buffer configured to receive an input signal and differentially amplify and buffer the received input signal, and a current regulator for regulating the amount of current in the buffer at a turn-on level which depends on a level of a voltage inputted thereto.
Claims10
An input buffer circuit comprising:
- a buffer configured to receive an input signal, and differentially amplify and buffer the received input signal;
- a first enabler configured to enable the buffer in response to an enable signal;
- and
- a current regulator configured to regulate the amount of current of the buffer, said current regulator comprising a first switching unit enabled in response to the enable signal, a second switching unit enabled in response to a control signal, and a metal option,
- wherein the first enabler and the current regulator are coupled in parallel to said buffer, and the first switching unit, the second switching unit and the metal option are coupled to each other in series.
2 more elements
An input buffer circuit comprising:
- a buffer configured to receive an input signal and differentially amplify and buffer the received input signal;
- a first enabler configured to enable the buffer in response to an enable signal;
- a current regulator configured to regulate the amount of current of the buffer, said current regulator comprising a first switching unit enabled in response to the enable signal, a second switching unit enabled in response to a control signal, and a metal option;
- and
- a controller configured to adjust a level of a supply voltage in response to the input signal and output the level-adjusted voltage as the control signal to the current regulator,
- wherein the first enabler and the current regulator are coupled in parallel to said buffer, and the first switching unit, the second switching unit and the metal option are coupled to each other in series.
3 more elements
Dependencies are inferred from the claim text.