OP-AMP sharing technique to remove memory effect in pipelined circuit
US9154091B2 · kind B2 · utility
1Cited by
7References
20Claims
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Key dates
| Filing date | Sep 12, 2013 |
| Grant date | Oct 6, 2015 |
| Priority date | — |
| Expiry date | Sep 12, 2033 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03M1/44
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
This document describes a new op-amp sharing technique for pipeline ADC without memory effect. The key features of this technique are: the usage of negative impedance converter and scaled replica of the op-amp input device to achieve zero error voltage, which in turns achieve low power dissipation due to the removal of the tradeoff between op-amp sharing and memory effect. With this technique much lower operation of pipeline ADC can be achieved for applications of data communications and image signal processing.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.