Signal conversion circuit and rail-to-rail circuit
US8159300B2 · kind B2 · utility
9Cited by
6References
5Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jun 25, 2008 |
| Grant date | Apr 17, 2012 |
| Priority date | — |
| Expiry date | Oct 18, 2028 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03F2203/45646
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A signal conversion circuit 2 according to an embodiment of the present invention has a difference amplifier 10 and a source follower 20. The difference amplifier 10 has first and second resistors 11, 12 connected in series, third and fourth resistors 13, 14 connected in series, first and second PMOS transistors 15, 16, and a current source 18. The source follower 20 has first and second NMOS transistors 22, 24. A source of the first NMOS transistor 22 is connected between the first and second resistors 11, 12, while a source of the second NMOS transistor 24 is connected between the third and fourth resistors 13, 14.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.