Sense amplifier and input/output circuit of semiconductor apparatus including the same
AssigneeSK hynix Inc.
InventorsYong Sung LEE, Deok Won KANG, Jong Su KIM, Dong Jae LEE
Life of this patent
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Abstract
A sense amplifier may be provided. The sense amplifier may include a first switch coupled between any one of a first signal line pair and a first power supply terminal. The sense amplifier may include a second switch coupled between the other one of the first signal line pair and the first power supply terminal. The sense amplifier may include a third switch configured to turn on the first switch depending on a level of the any one of the first signal line pair. The sense amplifier may include a fourth switch configured to turn on the second switch depending on a level of the other one of the first signal line pair.
Claims20
A sense amplifier comprising:
- a first switch coupled between a first power supply terminal and any one of a first signal line pair;
- a second switch coupled between the first power supply terminal and the other one of the first signal line pair;
- a third switch configured to turn on the first switch by coupling a second power supply terminal to the first switch depending on a level of the any one of the first signal line pair;
- and
- a fourth switch configured to turn on the second switch by coupling the second power supply terminal to the second switch depending on a level of the other one of the first signal line pair,
- wherein the third and fourth switches are directly coupled to the second power supply terminal.
An input/output circuit of a semiconductor apparatus, comprising:
- a first sense amplifier configured to sense a voltage difference of a bit line pair;
- a first switching circuit configured to couple the bit line pair and a segment line pair according to a first switching control signal;
- and
- a second sense amplifier configured to perform amplification of a voltage difference of the segment line pair, in response to a level variation of the segment line pair according to a coupling of the bit line pair and the segment line pair.
A sense amplifier comprising:
- a control circuit configured to output a control signal depending on a voltage level of a first signal line pair;
- a driver configured to drive, according to the control signal, any one of a second signal line pair to a level of a first power supply terminal;
- and
- a driver precharge circuit configured to precharge, according to a precharge signal, the control signal to the level of the first power supply terminal,
- wherein the control circuit is directly coupled to the first signal line pair.
Dependencies are inferred from the claim text.