Patent · US Active

Analog-to-digital converter

US9240801B2 · kind B2 · utility

1Cited by

0References

19Claims

0Family size

Assignee

TEXAS INSTRUMENTS INCORPORATED · US

Inventors

Jan-Tore Marienborg · Oslo, NO
Gregory B. Arndt · Campbell, US
Stefan Dannenberger · Langhus, NO

Key dates

Filing date	Mar 14, 2014
Grant date	Jan 19, 2016
Priority date	—
Expiry date	Apr 5, 2034

Classification

Technology area (CPC H)Electricity
CPC primaryH03M3/438
WIPO fieldBasic communication processes
WIPO sectorElectrical engineering

Abstract

A delta sigma analog-to-digital converter (ADC) providing optimized performance and energy consumption. In one embodiment, a delta-sigma ADC includes a loop filter and a multi-bit quantizer. The multi-bit quantizer is coupled to the loop filter. The quantizer includes a counter, a reference voltage generator, and a comparator. The counter is configured to provide a multi-bit output value that estimates an output of the loop filter. The reference voltage generator is configured to generate a reference voltage ramp based on the output value of the counter. The comparator is coupled to the reference voltage generator to compare the reference voltage ramp to output of the loop filter.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.