Patent · US Active

Electronic device and method for analog to digital conversion according to delta-sigma modulation using double sampling

US8624767B2 · kind B2 · utility

2Cited by

1References

5Claims

0Family size

Assignee

TEXAS INSTRUMENTS DEUTSCHLAND GMBH · DE

Inventors

Konstantin Schmid · Dahlen, DE
Michael Reinhold · Munich, DE
Frank Ohnhaeuser · Stein, DE

Key dates

Filing date	Sep 4, 2012
Grant date	Jan 7, 2014
Priority date	—
Expiry date	Sep 4, 2032

Classification

Technology area (CPC H)Electricity
CPC primaryH03M3/43
WIPO fieldBasic communication processes
WIPO sectorElectrical engineering

Abstract

The modulator comprises a first and second integration stages, and a comparator, the first integration stage is fully differential having: an amplifier, sets of input sampling capacitors and feedback capacitors, and the first integration stage is configured to sample the analog input voltage on a set of input capacitors during a first portion of a clock cycle and on a set of input capacitors during a second portion of the clock cycle and to sample the feedback reference voltage on a set of feedback capacitors during the first portion of the clock cycle and on a set of feedback capacitors during the second portion of the clock cycle, and the first set of feedback capacitors and the second set of feedback capacitors are randomly selected out of the plurality of sets of feedback capacitors from cycle to cycle.

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