High speed wide bandwidth digital peak detector
US5825319A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Dec 23, 1996 |
| Grant date | Oct 20, 1998 |
| Priority date | — |
| Expiry date | Dec 23, 2016 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03M1/44
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A high speed wide bandwidth peak detector uses multiple peak detection stages that detect different sub-ranges of a full-scale analog signal range. Splitting the peak detector into multiple stages reduces the number of taps in each stage, and hence their capacitance, which increases their bandwidth. The number of taps can be further reduced by using a non-uniform resolution of the desired full-scale amplitude range. In the preferred embodiment, identical peak detection stages are separated by fixed gain stages that map the different sub-ranges to respective detection stages. This approach minimizes the effects of offset errors in the individual stages but requires gain stages that have wider bandwidths than the detection stages and which can be closely matched to maintain amplitude resolution.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.