Low power switched capacitor integrator, analog-to-digital converter and switched capacitor amplifier
US9866237B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | May 12, 2017 |
| Grant date | Jan 9, 2018 |
| Priority date | — |
| Expiry date | May 12, 2037 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03M3/45
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
Disclosed examples include switched capacitor integrator circuits including an amplifier, a feedback capacitor, a sampling capacitor, a loading capacitor and a switching circuit, along with a controller that operates the switching circuit to sample an input signal to the sampling capacitor during a sample portion of a given sample and hold cycle, to couple the sampling capacitor to an amplifier input during a first hold portion of each sample and hold cycle, and to couple the sampling capacitor and the loading capacitor to the amplifier input in a second hold portion of each sample and hold cycle to reduce the bandwidth and power consumption by the integrator circuit.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.