Sense amplifier
US4802130A · kind A · utility
19Cited by
1References
5Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Apr 15, 1987 |
| Grant date | Jan 31, 1989 |
| Priority date | — |
| Expiry date | Apr 15, 2007 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11C7/065
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A sense amplifier includes two cross-coupled field effect transistors capacitively coupled to respective bit lines from a memory cell. During a precharging operation two capacitors are charged to precharged voltages indicative of the threshold dispersion voltage between the two transistors. Thereafter, during a sensing operation, the precharged voltages are applied to the gates of the transistors to compensate for the threshold dispersion voltage.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.