Sense amplifier having pull-up circuit controlled by feedback
US5015890A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jan 18, 1990 |
| Grant date | May 14, 1991 |
| Priority date | — |
| Expiry date | Jan 18, 2010 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11C17/12
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A sense amplifier includes a first P channel MOS transistor connected between a power source terminal and a bit line, and a CMOS inverter for inverting the logic level of the potential in the bit line. The sense amplifier further includes a second N channel MOS transistor connected in series to the first P channel MOS transistor between the power source terminal and the bit line. The second N channel MOS transistor is switch-controlled by an output signal of a CMOS inverter. When in an off state, the second N channel MOS transistor prohibits the first P channel MOS transistor from transferring a power source potential to the bit line. When in an on state, the second N channel MOS transistor allows the first P channel MOS transistor to transfer the power source potential to the bit line.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.