Differential pair sensing circuit structures
US9423376B2 · kind B2 · utility
0Cited by
3References
15Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 30, 2014 |
| Grant date | Aug 23, 2016 |
| Priority date | — |
| Expiry date | Jun 7, 2034 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH10D64/037
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A differential pair sensing circuit (300) includes control gates (306, 316) for separately programming a reference transistor (350) and a chemically-sensitive transistor (351) to a desired threshold voltage Vt to eliminate the mismatch between the transistors in order to increase the sensitivity and/or accuracy of the sensing circuit without increasing the circuit size.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.