Analog to digital converter with interpolation of reference ladder
US6784818B2 · kind B2 · utility
8Cited by
26References
40Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Dec 31, 2003 |
| Grant date | Aug 31, 2004 |
| Priority date | — |
| Expiry date | Dec 31, 2023 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03M1/365
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
An N-bit analog to digital converter includes a reference ladder connected to an imput voltage at one end, and to ground at another end, an array of differential amplifiers whose differential inputs are connected to taps from the reference ladder, wherein each amplifier has a first differential input connected to the same tap as a neighboring amplifier, and a second differential imput shifted one tap from the neighboring amplifier, and an encoder that converts outputs the array to an N-bit output.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.