Operational amplifier device
US8344802B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 20, 2011 |
| Grant date | Jan 1, 2013 |
| Priority date | — |
| Expiry date | Apr 20, 2031 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03F2203/45512
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
An operational amplifier device includes an operational amplifier, a first transmission gate, and a first switch module. The operational amplifier includes an output stage, which has a first signal input terminal and a signal output terminal, and outputs an output voltage at the signal output terminal. The first transmission gate is coupled between the signal output terminal and a transmission output terminal, having a first transmission control terminal. The first switch module is utilized for controlling electrical connection between the first signal input terminal and the first transmission control terminal. During a first transmission period, the first switch module controls the first transmission control terminal to be coupled to the first signal input terminal, thereby conducting the first transmission gate to not only transmit the output voltage but also act as a Miller capacitor.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.