Fast analog-digital converter with parallel structure
US4999630A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Nov 18, 1988 |
| Grant date | Mar 12, 1991 |
| Priority date | — |
| Expiry date | Nov 18, 2008 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03M1/365
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
Disclosed is an analog/digital converter designed to convert an analog voltage into a digital voltage with n bits. The converter comprises: PA1 p=2.sup.n comparators capable of comparing the analog voltage with a reference analog voltage obtained by a voltage generator, each comparator comprising an inverter amplifier, a capacitor having a first terminal connected to the input of the amplifier and wherein, before the application of the analog voltage, each amplifier is connected in short-circuit feedback loop while the reference voltage is applied to the other terminal of the capacitor, this operation being performed no longer in parallel for all the amplifiers but successively, one after another in order to reduce the consumption of current during this operation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.