Programmable-gain instrumentation amplifier
US9065400B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Sep 20, 2013 |
| Grant date | Jun 23, 2015 |
| Priority date | — |
| Expiry date | Sep 20, 2033 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03F2203/45618
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A device comprises a first amplifier, a first resistive element that comprises a first resistor and a first dummy switch, a second amplifier, a second resistive element that comprises a second resistor and a second dummy switch, and a programmable resistive gain element operable to receive control input, wherein a resistance value of the programmable resistive gain element is based at least in part on the received control input, wherein a first end of the programmable resistive gain element is connected to both the first inverting input of the first amplifier and to a second end of the first dummy switch, and wherein a second end of the programmable resistive gain element is connected to both the second inverting input of the second amplifier and to a second end of the second dummy switch.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.