Differential current sense amplifier
US6847569B2 · kind B2 · utility
5Cited by
8References
31Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 30, 2002 |
| Grant date | Jan 25, 2005 |
| Priority date | — |
| Expiry date | Dec 30, 2022 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11C2207/063
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A high-performance, low energy amplifier circuit for the detection and amplification of a voltage differential includes a current conveyor and a sense amplifier. The current conveyor includes a pair of cross-linked transistors and a pair of pass transistors. The sense amplifier includes four transistors forming a cross-linked current sense amplifier. The current sense amplifier detects a current differential between complementary bit lines, develops a differential voltage based on the current differential, amplifies the differential voltage and outputs the amplified differential voltage.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.