High-speed logic gate
US6628145B1 · kind B1 · utility
Assignee
Inventor
Key dates
| Filing date | Feb 23, 2001 |
| Grant date | Sep 30, 2003 |
| Priority date | — |
| Expiry date | Feb 23, 2021 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03K23/667
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A logic gate that includes a first differential amplifier and a feedback circuit. The first differential amplifier has a number of first (e.g., non-inverting) inputs and a second (e.g., inverting) input, receives and senses input signals applied to the non-inverting inputs, and provides a differential output that is a particular logic function (e.g., an ‘OR’) of the input signals. The non-inverting inputs may correspond to the gates of a number of transistors coupled in parallel to form an OR function. The feedback circuit detects the (e.g., non-inverting node of the) differential output and provides a control signal for the inverting input of the first differential amplifier. The logic gate typically further includes a second differential amplifier that senses and further drives the differential output.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.