Patent ID: 7019561

Claim:
A sense amplifier, comprising: a first sense amplifier section comprising: first and second complementary sense lines; first switch coupled between the first sense line and a first power supply node, the first switch having a control terminal coupled to the second sense line; a second switch coupled between the second sense line and the first power supply node, the second switch having a control terminal coupled to the first sense line; a third switch coupled between the first sense line and a second power supply node, the third switch having a control terminal coupled to the second sense line; a fourth switch coupled between the second sense line and the second power supply node, the fourth switch having a control terminal coupled to the first sense line; a second sense amplifier section comprising: a pair of complementary digit lines; a first switch coupled between the first digit line and a third power supply node, the first switch having a control terminal coupled to the second sense line; a second switch coupled between the second digit line and the third power supply node, the second switch having a control terminal coupled to the first sense line; a third switch coupled between the first digit line and a fourth power supply node, the third switch having a control terminal coupled to the second sense line; a fourth switch coupled between the second digit line and the fourth power supply node, the fourth switch having a control terminal coupled to the first sense line; a sixth switch coupled between the first sense line and the first digit line the, the sixth switch having a control terminal; and a seventh switch coupled between the second sense line and the second digit line, the seventh switch having a control terminal.