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.
Claims11
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 compensation voltage input node which is applied with a first voltage;
- a power compensating unit configured to selectively supply the compensation voltage input node with a second voltage in response to the compensation control signal;
- and
- a power supply unit configured to supply a voltage at the compensation voltage input node or the second voltage to a sense-amp driver in response to a first power control signal or a second power control signal, wherein the power supply unit comprises:
- an output terminal;
- a first transistor having a gate terminal configured to receive the first power control signal, a drain terminal configured to receive the second voltage, and a source terminal coupled with the output terminal;
- and
- a second transistor having a gate terminal configured to receive the second power control signal, a drain terminal coupled to the compensation voltage input node, and a source terminal coupled with the output terminal.
A circuit for supplying power to a sense amplifier in a semiconductor memory apparatus, comprising:
- a compensation voltage input node which is applied with a first voltage;
- a power supply compensation unit configured to selectively supply a compensation voltage input node with a second voltage in response to a refresh signal;
- and
- a power supply unit configured to selectively supply a voltage at the compensation voltage input node or the second voltage to a sense-amp driver in response to a first power control signal or a second power control signal. wherein the power supply unit comprises:
- an output terminal:
- a first transistor having a gate terminal configured to receive the first power control signal, a drain terminal configured to receive the second voltage, and a source terminal coupled with the output terminal;
- and
- a second transistor having a nate terminal configured to receive the second power control signal, a drain terminal coupled with the compensation voltage input node, and a source terminal coupled with the output terminal.
Dependencies are inferred from the claim text.