Low voltage bipolar logic and gate device
US6677784B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Dec 28, 2000 |
| Grant date | Jan 13, 2004 |
| Priority date | — |
| Expiry date | Jul 17, 2021 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03K19/086
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A single stack bipolar logic AND gate for low power applications comprising: a first differential pair of transistors, each transistor of the first differential pair having base, emitter and collector terminals, a base of a first transistor of the first differential pair receiving an input signal A and a base of the second transistor of the first differential pair receiving its complement signal {overscore (A)}, the emitters of each transistor of the first differential pair being connected at a common node to a first constant current source; a second differential pair of transistors, each transistor of the second differential pair having base, emitter and collector terminals, a base of a first transistor of the second differential pair receiving an input signal B and a base of the second transistor of the second differential pair receiving its complement signal {overscore (B)}, the emitters of each transistor of the second differential pair being connected at a common node to a second constant current source; and, a common voltage power supply source, the collector terminal of each first transistor of the first and second differential pairs being connected to the common voltage pow…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.