Low drift resistor structure
US5268651A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Feb 16, 1993 |
| Grant date | Dec 7, 1993 |
| Priority date | — |
| Expiry date | Feb 16, 2013 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH10D88/00
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A low drift integrated circuit resistor structure has a forced high end and a forced low end. A sense high connection is located proximate to the force high connection, and a sense low connection is located proximate to the force low connection. The structure also has at least one internal sense connection. This structure can be used in an instrumentation amplifier that includes an operational amplifier which regulates the current between the force high connection and the force low connection in response, in part, to the current sensed in the internal sensing connection of the resistor structure. The sense high connection and the sense low connection form the outputs of the instrumentation amplifier.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.