Circuit and method for supplying power to sense amplifier in semiconductor memory apparatus
AssigneeHynix Semiconductor Inc.
InventorBong Hwa Jeong
Life of this patent
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Abstract
A circuit for supplying power to a sense amplifier in a semiconductor memory apparatus includes: a compensation controlling unit configured to generate a compensation control signal to determine power compensation, in response to a refresh signal. A power compensating unit supplies a compensation voltage input node, which is applied with a first voltage, with a second voltage in response to the compensation control signal. And, a power supply unit configured to supply the second voltage or a voltage at the compensation voltage input node to a sense-amp driver in response to a first power control signal or a second power control signal.
Claims17
A circuit for supplying power to a sense amplifier in a semiconductor memory apparatus, comprising:
- a compensation controlling unit configured to generate a compensation control signal to determine power compensation, in response to a refresh signal;
- a power compensating unit configured to supply a compensation voltage input node, which is applied with a first voltage, with a second voltage in response to the compensation control signal;
- and
- a power supply unit configured to supply the second voltage or a voltage at the compensation voltage input node to a sense-amp driver in response to a first power control signal or a second power control signal.
A circuit for supplying power to a sense amplifier in a semiconductor memory apparatus, comprising:
- a power supply compensation unit configured to supply a compensation voltage input node, which is applied with a first voltage, with a second voltage in response to a refresh signal;
- and
- a power supply unit configured to selectively supply the second voltage or a voltage at the compensation voltage input node to a sense-amp driver in response to a first power control signal or a second power control signal.
A method for supplying power to a sense amplifier in a semiconductor memory apparatus comprising:
- applying an external power source voltage to a supply line of a core voltage to be supplied into a sense-amp driver, and raising the voltage of a drive voltage of the sense amplifier, during a bit-line sensing operation of a sense amplifier when a refresh mode is enabled.
Dependencies are inferred from the claim text.