Operational amplifier circuit
US4463319A · kind A · utility
7Cited by
1References
2Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Aug 2, 1982 |
| Grant date | Jul 31, 1984 |
| Priority date | — |
| Expiry date | Aug 2, 2002 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03F2203/45366
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
An operational amplifier includes a PNP differential amplifier operable for low common mode input voltages and an NPN differential amplifier operable for high common mode input voltages so that the operational amplifier is operable over a range of common mode input voltages that includes substantially the positive and negative supply voltages.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.